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1. 3D porous spheroidal Na₄Mn₀.₉Ce₀.₁V(PO₄)₃@CeO₂/C cathode for high-energy Na ion batteries

Author:
Kun Wang; Xiaobing Huang; Tao Zhou; Dan Sun; Haiyan Wang; Zhi Zhang
Source:
Journal of materials chemistry A 2022 v.10 no.19 pp. 10625-10637
ISSN:
2050-7496
Subject:
cathodes; crystal structure; electric potential difference; electrochemistry; superconductivity; synergism; titration; toxicity
Abstract:
... The NASICON-type Na₄MnV(PO₄)₃ (NMVP) possesses potential as a cathode material in SIBs, and is known for its stable 3D Na⁺ superconductive framework, high voltage platform, and relatively low cost and toxicity. Nevertheless, the intrinsic poor electronic conductivity and Jahn–Teller effect from Mn³⁺ during cycling limit its further application. Herein, to address such issues, a well-designed 3D po ...
DOI:
10.1039/d2ta00955b

2. A Comparative Study of Different Freezing Methods on Water Distribution, Retrogradation, and Digestion Properties of Liangpi (Starch Gel Food)

Author:
Shuaishuai Zheng; Yong Yang; Zhen Li; Zhili Pan; Zhongmin Huang; Zhilu Ai
Source:
Stärke = 2022 v.74 no.3-4 pp. e2100205
ISSN:
0038-9056
Subject:
business enterprises; comparative study; crystal structure; digestion; gels; hardness; liquid nitrogen; microstructure; refrigerators; retrogradation; starch; texture; water distribution
Abstract:
... In this work, the effects of refrigerator freezing method (RF), spiral tunnel freezing method (SF), and liquid nitrogen spray freezing method (LF) on water distribution, microstructure, retrogradation, and digestion properties of Liangpi are investigated. Results from SEM and water distribution show the starch gel structure of Liangpi after LF treatment is more continuous, and its A₂₁ content is h ...
DOI:
10.1002/star.202100205

3. A comparative investigation of gelatinized and regenerated starch composites reinforced by microfibrillated cellulose

Author:
Yu Tian; Mi Zhou; Ting Luo; PuXin Zhu; Fei Cheng; Yong Zhang; Yi Lin
Source:
Food chemistry 2022 v.373 pp. 131470
ISSN:
0308-8146
Subject:
amylose; biocomposites; biodegradability; cellulose; cellulose microfibrils; crystal structure; food chemistry; gelatinization; molecular weight; sodium hydroxide; tensile strength
Abstract:
... This research demonstrated a novel and ecofriendly method for producing regenerated starch (RS)/microfibrillated cellulose (MFC) composite films with a nearly 1.4-fold improvement in tensile strength than traditional gelatinized starch (GS) films. Pure starch was dissolved in 14 wt% urea/4 wt% sodium hydroxide (NaOH) solution at 0 °C. Then, RS films and their biocomposite films containing MFC were ...
DOI:
10.1016/j.foodchem.2021.131470

4. A comparison of machine learning algorithms for mapping soil iron parameters indicative of pedogenic processes by hyperspectral imaging of intact soil profiles

Author:
Shengxiang Xu; Yongcun Zhao; Meiyan Wang; Xuezheng Shi
Source:
European journal of soil science 2022 v.73 no.1 pp. e13204
ISSN:
1351-0754
Subject:
crystal structure; iron; models; spectroscopy; support vector machines
Abstract:
... Soil iron (Fe) performs vital functions in the biogeochemical cycles of soil environments. The amount and profile allocation of various Fe parameters can be used as sensitive indicators of soil development and pedogenic processes. This study aimed to evaluate the potential of ground‐based hyperspectral imaging (HSI: 400–1010 nm) spectroscopy to predict and map six Fe parameters indicative of pedog ...
DOI:
10.1111/ejss.13204

5. A covalent organic framework as a photocatalyst for window ledge cross-dehydrogenative coupling reactions

Author:
Fan Yang; Cong-Cong Li; Cui-Cui Xu; Jing-Lan Kan; Bing Tian; Hong-Yan Qu; Yuan Guo; Yan Geng; Yu-Bin Dong
Source:
Chemical communications 2022 v.58 no.10 pp. 1530-1533
ISSN:
1364-548X
Subject:
chemical communication; couplings; crystal structure; photocatalysts; windows
Abstract:
... A benzothiadiazole-involving donor–acceptor (D–A) covalent organic framework (COF), which has high crystallinity and strong light-harvesting capability (ranging from 300 to 800 nm), can serve as a highly effective photocatalyst for window ledge aerobic cross-dehydrogenative coupling (CDC) reactions (such as Mannich and aza-Henry reactions) even at a gram level. ...
DOI:
10.1039/d1cc06184d

6. A directly linked COF-like conjugated microporous polymer based on naphthalene diimides for high performance supercapacitors

Author:
Changyu Weng; Xianglan Li; Zhiwei Yang; Haijun Long; Chenyang Lu; Lichun Dong; Shuo Zhao; Luxi Tan
Source:
Chemical communications 2022 v.58 no.48 pp. 6809-6812
ISSN:
1364-548X
Subject:
capacitance; crystal structure; electrochemical capacitors; electrodes; naphthalene; polymers; porous media; triazines
Abstract:
... In this work, single bond directly linked COF-like conjugated microporous polymer NDTT is constructed via Stille coupling with thiophene-substituted naphthalene diimides and triazine, showing fair crystallinity. NDTT is utilized as an electrode for supercapacitor applications, exhibiting promising performance with excellent capacitance reaching 425.3 F g⁻¹ under a current of 0.2 A g⁻¹. ...
DOI:
10.1039/d2cc02097a

7. A neoteric approach for the complete valorization of Typha angustifolia leaf biomass: A drive towards environmental sustainability

Author:
Baby Salini Jacob Rani; Sivakumar Venkatachalam
Source:
Journal of environmental management 2022 v.318 pp. 115579
ISSN:
0301-4797
Subject:
Typha angustifolia; biomass; biorefining; cellulose; crystal structure; environmental management; environmental sustainability; hemicellulose; invasive species; leaves; lignin; solubilization; thermal stability; ultrasonic treatment
Abstract:
... Exploring new biomass resources and developing a sustainable process for holistic utilization has become crucial due to the high demand for bio-based chemicals as alternatives to petrochemicals. Herein, we describe a novel approach to valorize the Typha angustifolia leaves, underutilized biomass into cellulose, hemicellulose and lignin nanoparticles. The process was framed in a sequence to isolate ...
DOI:
10.1016/j.jenvman.2022.115579

8. A novel Ag2O-TiO2-Bi2WO6/polyvinyl alcohol composite film with ethylene photocatalytic degradation performance towards banana preservation

Author:
Jiawen Xie; Rui Wang; Yingying Li; Zeping Ni; Wenbei Situ; Shengying Ye; Xianliang Song
Source:
Food chemistry 2022 v.375 pp. 131708
ISSN:
0308-8146
Subject:
bananas; color; composite films; crystal structure; ethylene; food chemistry; gas exchange; glycogen; hardness; oxidation; oxygen; phenol; photocatalysis; photocatalysts; pulp; thermal stability; titratable acidity; transmittance; weight loss
Abstract:
... In this research, the Ag₂O-TiO₂-Bi₂WO₆(ATB) ternary heterojunction photocatalyst was synthesized by hydrothermal and surface deposition method, and the ATB/PVA composite film with ethylene photocatalytic degradation performance was constructed by the casting method. The structure and properties of ATB and ATB/PVA films were characterized and applied to banana preservation. The results showed that ...
DOI:
10.1016/j.foodchem.2021.131708

9. A novel co-cultivation strategy to generate low-crystallinity bacterial cellulose and increase nisin yields

Author:
Wanjin Qiao; Yu Qiao; Ge Gao; Zitong Liao; Zhenzhou Wu; Per Erik Joakim Saris; Haijin Xu; Mingqiang Qiao
Source:
International journal of biological macromolecules 2022 v.202 pp. 388-396
ISSN:
0141-8130
Subject:
Enterobacter; Lactococcus lactis; cellulose; coculture; crystal structure; crystallization; culture media; inoculum; lactic acid; nisin; pH
Abstract:
... In this study, a co-culturing Enterobacter sp. and Lactococcus lactis strategy was developed to alter bacterial cellulose (BC) properties and increase nisin yields. We generated high nisin yields (6260 IU/mL) by altering inoculum ratios and inoculation times in a novel co-culture system. Critically, these were 85% higher than L. lactis monocultures. By monitoring fermentation broth pH and lactic a ...
DOI:
10.1016/j.ijbiomac.2022.01.038

10. A novel electrochemical sensor for the detection of fipronil and its toxic metabolite fipronil sulfone using TiO2-polytriazine imide submicrostructured composite as an efficient electrocatalyst

Author:
Suzan El-Akaad; Roman Morozov; Mikhail Golovin; Oleg Bol'shakov; Sarah De Saeger; Natalia Beloglazova
Source:
Talanta 2022 v.238 pp. 123025
ISSN:
0039-9140
Subject:
carbon nitride; chemical species; composite materials; crystal structure; detection limit; electrochemistry; electrodes; fipronil; hot water treatment; metabolites; oxidation; pH; sensors (equipment); titanium dioxide; toxicity; voltammetry
Abstract:
... For the first time, a simple and sensitive electrochemical sensor based on a screen printed electrode (SPE) modified with titanium dioxide (TiO₂) and polytriazine imide submicrostructured composite (TiO₂-PTI) has been developed for the simultaneous detection of fipronil (FIP) and its toxic metabolite fipronil sulfone (FIP-S). The submicrostructured composite material based on TiO₂ and PTI was obta ...
DOI:
10.1016/j.talanta.2021.123025

11. A novel mechanocatalytical reaction system driven by fluid shear force for the mild and rapid pretreatment of lignocellulosic biomass

Author:
Jingxue Li; Yingxiong Wang; Wanbin Zhu; Shanshuai Chen; Tiansheng Deng; Shuaishuai Ma; Hongliang Wang
Source:
Waste management 2022 v.148 pp. 98-105
ISSN:
0956-053X
Subject:
biomass; biorefining; cellulose; crystal structure; glucose; heat; hemicellulose; lignin; lignocellulose; urea; waste management
Abstract:
... Pretreatment is the initial stage of lignocellulosic biorefinery process, but is limited by the time-consuming processes, harsh conditions and/or undesirable products. Herein, a mild (<60 °C) and highly efficient pretreatment strategy is developed. The novel mechanocatalytical reaction system driven by fluid shear force helps to exfoliate cellulose from lignocellulose, and the heat generated by th ...
DOI:
10.1016/j.wasman.2022.05.026

12. A review of paramylon processing routes from microalga biomass to non-derivatized and chemically modified products

Author:
Frédérica Feuzing; Jean Pierre Mbakidi; Luc Marchal; Sandrine Bouquillon; Eric Leroy
Source:
Carbohydrate polymers 2022 v.288 pp. 119181
ISSN:
0144-8617
Subject:
Euglena gracilis; biomass; bioplastics; carbon dioxide; crystal structure; curdlan; hydrogen; microalgae; nanofibers; regioselectivity; thermoplastics; wastewater; water solubility
Abstract:
... Paramylon is a linear β-1,3-glucan, similar to curdlan, produced as intracellular granules by the microalga Euglena gracilis, a highly versatile and robust strain, able to grow under various trophic conditions, with valorization of CO₂, wastewaters, or food byproducts as nutrients. This review focuses in particular on the various processing routes leading to new potential paramylon based products. ...
DOI:
10.1016/j.carbpol.2022.119181

13. A review on self-modification of zirconium dioxide nanocatalysts with enhanced visible-light-driven photodegradation of organic pollutants

Author:
N.S. Hassan; A.A. Jalil
Source:
Journal of hazardous materials 2022 v.423 pp. 126996
ISSN:
0304-3894
Subject:
crystal structure; light; nanocatalysts; photocatalysis; photocatalysts; photolysis; zirconium oxide
Abstract:
... Over the past few years, photocatalysis is one of the most promising approaches for removing organic pollutants. Zirconium dioxide (ZrO₂) has been shown to be effective in the photodegradation of organic pollutants. However, low photoresponse and fast electron-hole recombination of ZrO₂ affected the efficiency of catalytic performance. Modifying the photocatalyst itself (self-modification) is a pr ...
DOI:
10.1016/j.jhazmat.2021.126996

14. A study of the structural, morphological, and optical properties of shock treated SnO2 nanoparticles: removal of Victoria blue dye

Author:
M. Jarvin; S.S.R. Inbanathan; D. Rani Rosaline; A. Josephine Prabha; S.A. Martin Britto Dhas
Source:
Heliyon 2022 v.8 no.6 pp. e09653
ISSN:
2405-8440
Subject:
X-ray diffraction; crystal structure; dyes; photocatalysis; tea; tin dioxide
Abstract:
... In this work, Tin Oxide (SnO₂) nanoparticles (NPs) were prepared by green microwave followed by hydrothermal methods, using tea extract as a reducing agent. To verify the stability of physical and chemical properties of SnO₂ NPs, samples were subjected to shock impulsion experimentation. Different characterization techniques were employed to analyze the crystallinity, molecular structure, and opti ...
DOI:
10.1016/j.heliyon.2022.e09653

15. Accelerated Synthesis and Discovery of Covalent Organic Framework Photocatalysts for Hydrogen Peroxide Production

Author:
Wei Zhao; Peiyao Yan; Boyu Li; Mounib Bahri; Lunjie Liu; Xiang Zhou; Rob Clowes; Nigel D. Browning; Yue Wu; John W. Ward; Andrew I. Cooper
Source:
Journal of the American Chemical Society 2022 v.144 no.22 pp. 9902-9909
ISSN:
1520-5126
Subject:
benzyl alcohol; crystal structure; hydrogen peroxide; imines; oxygen; photocatalysis; photocatalysts; photostability
Abstract:
... A high-throughput sonochemical synthesis and testing strategy was developed to discover covalent organic frameworks (COFs) for photocatalysis. In total, 76 conjugated polymers were synthesized, including 60 crystalline COFs of which 18 were previously unreported. These COFs were then screened for photocatalytic hydrogen peroxide (H₂O₂) production using water and oxygen. One of these COFs, sonoCOF- ...
DOI:
10.1021/jacs.2c02666

16. Accumulation and physicochemical properties of starch in relation to eating quality in different parts of taro (Colocasia esculenta) corm

Author:
Xurun Yu; Yumeng Zhang; Liping Ran; Wenyi Lu; Erjin Zhang; Fei Xiong
Source:
International journal of biological macromolecules 2022 v.194 pp. 924-932
ISSN:
0141-8130
Subject:
Colocasia esculenta; amylose; corms; crystal structure; nuclear magnetic resonance spectroscopy; smell; solubility; taro; texture; viscosity
Abstract:
... The accumulation and physicochemical properties of starch affect the eating quality of taro corm. This study aims to investigate the accumulation, morphology, and physicochemical properties of starch from inner and outer tissues in the top, middle, and basal parts of taro corm. Structural and morphological observations showed that the inner tissues of the taro corm accumulated more starch, and the ...
DOI:
10.1016/j.ijbiomac.2021.11.147

17. Addition of amino acids modulates the in vitro digestibility of corn starch

Author:
Shuke Yue; Huaibin Wang; Huixian Xu; Hongsheng Liu; Wenwen Yu
Source:
Carbohydrate polymers 2022 v.293 pp. 119745
ISSN:
0144-8617
Subject:
Maillard reaction; corn starch; crystal structure; digestible carbohydrates; digestion; enzymes; glutamic acid; lysine; phosphates; retrogradation; starch
Abstract:
... The addition of amino acids (AAs) including glycine (Gly), lysine (Lys) and glutamic acid (Glu) with different concentrations on starch morphological, physicochemical and in vitro digestion properties were studied. While AAs showed no effects on neither morphology nor crystalline characters, they all significantly influenced the starch relative crystallinity and swelling capacity in an order of Gl ...
DOI:
10.1016/j.carbpol.2022.119745

18. Additive Manufacturing of α-Amino Acid Based Poly(ester amide)s for Biomedical Applications

Author:
Vahid Ansari; Andrea Calore; Jip Zonderland; Jules A. W. Harings; Lorenzo Moroni; Katrien V. Bernaerts
Source:
Biomacromolecules 2022 v.23 no.3 pp. 1083-1100
ISSN:
1526-4602
Subject:
amides; apatite; biodegradability; body fluids; bones; composite polymers; condensation reactions; crosslinking; crystal structure; cytotoxicity; extrusion; glass transition temperature; hydrogen bonding; molecular weight; polyesters; polymerization; rheology; structure-activity relationships; thermal stability
Abstract:
... α-Amino acid based polyester amides (PEAs) are promising candidates for additive manufacturing (AM), as they unite the flexibility and degradability of polyesters and good thermomechanical properties of polyamides in one structure. Introducing α-amino acids in the PEA structure brings additional advantages such as (i) good cytocompatibility and biodegradability, (ii) providing strong amide bonds, ...
DOI:
10.1021/acs.biomac.1c01417

19. Adjusting the d-band center of metallic sites in NiFe-based Bimetal-organic frameworks via tensile strain to achieve High-performance oxygen electrode catalysts for Lithium-oxygen batteries

Author:
Chuan Zhao; Chaozhu Shu; Ruixing Zheng; Dayue Du; Longfei Ren; Miao He; Runjing Li; Haoyang Xu; Xiaojuan Wen; Jianping Long
Source:
Journal of colloid and interface science 2022 v.607 pp. 1215-1225
ISSN:
0021-9797
Subject:
adsorption; cathodes; cleavage (chemistry); crystal structure; electrochemistry; oxygen; tensile strength
Abstract:
... Developing effective electrocatalyst and fundamentally understanding the corresponding working mechanism are both urgently desired to overcome the current challenges facing lithium-oxygen batteries (LOBs). Herein, a series of NiFe-based bimetal-organic frameworks (NiFe-MOFs) with certain internal tensile strain are fabricated via a simple organic linker scission strategy, and served as cathode cat ...
DOI:
10.1016/j.jcis.2021.09.077

20. Advances in RF Glow Discharge Optical Emission Spectrometry Characterization of Intrinsic and Boron-Doped Diamond Coatings

Author:
Dhananjay K. Sharma; Ana V. Girão; Patrick Chapon; Miguel A. Neto; Filipe J. Oliveira; Rui F. Silva
Source:
ACS applied materials & interfaces 2022 v.14 no.5 pp. 7405-7416
ISSN:
1944-8252
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; affordability; boron; carbon; crystal structure; electrical conductivity; hydrogen; interferometry
Abstract:
... Accurate determination of the effective doping range within diamond thin films is important for fine-tuning of electrical conductivity. Nevertheless, it is not easily attainable by the commonly adopted techniques. In this work, pulsed RF glow discharge optical emission spectrometry (GD-OES) combined with ultrafast sputtering (UFS) is applied for the first time to acquire elemental depth profiles o ...
DOI:
10.1021/acsami.1c20785

21. Aggregated Structures of Two-Dimensional Covalent Organic Frameworks

Author:
Chengjun Kang; Zhaoqiang Zhang; Adam K. Usadi; David C. Calabro; Lisa Saunders Baugh; Kexin Yu; Yuxiang Wang; Dan Zhao
Source:
Journal of the American Chemical Society 2022 v.144 no.7 pp. 3192-3199
ISSN:
1520-5126
Subject:
Americans; crystal structure; detection; environment; journals; nuclear magnetic resonance spectroscopy; powders; sampling
Abstract:
... Covalent organic frameworks (COFs) have found wide applications due to their crystalline structures. However, it is still challenging to quantify crystalline phases in a COF sample. This is because COFs, especially 2D ones, are usually obtained as mixtures of polycrystalline powders. Therefore, the understanding of the aggregated structures of 2D COFs is of significant importance for their efficie ...
DOI:
10.1021/jacs.1c12708

22. All-vacuum deposited perovskite solar cells with glycine modified NiOₓ hole-transport layers

Author:
Cheng Fang; Qianqian Zhao; Fuping Zhao; Fuzhi Huang; Yong Peng; Zhiliang Ku; Yi-Bing Cheng; Zhengyi Fu
Source:
RSC advances 2022 v.12 no.18 pp. 10863-10869
ISSN:
2046-2069
Subject:
crystal structure; hysteresis; silicon; transmittance
Abstract:
... Organic–inorganic hybrid perovskite solar cells (PSCs) have attracted enormous research attention due to their high efficiency and low cost. However, most of the PSCs with high efficiencies still need expensive organic materials as their hole-transport layer (HTL). Obviously, the highly expensive materials go against the low-cost concept of advanced PSCs. In this regard, inorganic NiOₓ was conside ...
DOI:
10.1039/d2ra01360f

23. Amorphous-to-Crystalline Transformation: General Synthesis of Hollow Structured Covalent Organic Frameworks with High Crystallinity

Author:
Zeshan Xiong; Beibei Sun; Houbing Zou; Runwei Wang; Qianrong Fang; Zongtao Zhang; Shilun Qiu
Source:
Journal of the American Chemical Society 2022 v.144 no.14 pp. 6583-6593
ISSN:
1520-5126
Subject:
acetic acid; catalytic activity; crystal structure; crystallization; hydrogenation; imines; nanocapsules; nanopores; nitroaromatic compounds; solvents
Abstract:
... Morphological control of covalent organic frameworks (COFs) is particularly interesting to boost their applications; however, it remains a grand challenge to prepare hollow structured COFs (HCOFs) with high crystallinity and uniform morphology. Herein, we report a versatile and efficient strategy of amorphous-to-crystalline transformation for the general and controllable fabrication of highly crys ...
DOI:
10.1021/jacs.2c02089

24. An allosteric regulation mechanism of Arabidopsis Serine/Threonine kinase 1 (SIK1) through phosphorylation

Author:
Junxi Mu; Jiali Zhou; Qingqiu Gong; Qin Xu
Source:
Computational and Structural Biotechnology Journal 2022 v.20 pp. 368-379
ISSN:
2001-0370
Subject:
Arabidopsis; animals; biotechnology; catalytic activity; cell cycle; crystal structure; mitogen-activated protein kinase kinase kinase; phosphorylation; serine; structural biology; threonine
Abstract:
... The Arabidopsis Serine/Threonine Kinase 1 (SIK1) is a Sterile 20 (STE20)/Hippo orthologue that is also categorized as a Mitogen-Activated Protein Kinase Kinase Kinase Kinase (MAP4K). Like its animal and fungi orthologues, SIK1 is required for cell cycle exit, cell expansion, polarity establishment, as well as pathogenic response. The catalytic activity of SIK1, like other MAPKs, is presumably regu ...
DOI:
10.1016/j.csbj.2021.12.033

25. An amine-functionalized olefin-linked covalent organic framework used for the solid-phase microextraction of legacy and emerging per- and polyfluoroalkyl substances in fish

Author:
Xin Song; Rongyu Wang; Xiao Wang; Haoyue Han; Zhaoyu Qiao; Xiaowei Sun; Wenhua Ji
Source:
Journal of hazardous materials 2022 v.423 pp. 127226
ISSN:
0304-3894
Subject:
adsorption; bioaccumulation; condensation reactions; crystal structure; density functional theory; environmental fate; goldfish; hydrogen; solid phase microextraction; tandem mass spectrometry; toxicity
Abstract:
... Due to the environmental persistence and various health problems associated with per- and polyfluoroalkyl substances (PFASs), they have come under increased public scrutiny. However, the efficient extraction of PFASs from complex media remains challenging. Herein, an olefin-linked covalent organic framework (COF-CN) has been prepared via a Knoevenagel condensation reaction, followed by reduction u ...
DOI:
10.1016/j.jhazmat.2021.127226

26. An efficient green protocol for the synthesis of 1,2,4,5-tetrasubstituted imidazoles in the presence of ZSM-11 zeolite as a reusable catalyst

Author:
Sudarshan S. Dipake; Vijayanand D. Ingale; Sonali A. Korde; Machhindra K. Lande; Anjali S. Rajbhoj; Suresh T. Gaikwad
Source:
RSC advances 2022 v.12 no.7 pp. 4358-4369
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; acidity; aluminum; ammonium hydroxide; catalysts; catalytic activity; crystal structure; hot water treatment; imidazoles; surface area; zeolites
Abstract:
... In this study, we have synthesized a series of ZSM-11 zeolite catalysts using tetrapropyl ammonium hydroxide as a structure-directing agent through a highly efficient hydrothermal method. The series of catalysts were studied by different techniques such as FT-IR spectroscopy, XRD, FE-SEM, HR-TEM, EDS, pyridine-FT-IR spectroscopy, and BET analysis. We focused on varying reaction time intervals from ...
DOI:
10.1039/d1ra07984k

27. An electrospun composite of epoxidized Eucommia ulmoides gum and SiO2-GO with ultraviolet resistance

Author:
Pan-Pan Yue; Jun Rao; Ze-Jian Leng; Ge-Gu Chen; Xiang Hao; Pai Peng; Feng Peng
Source:
Journal of materials science 2022 v.57 no.7 pp. 4862-4875
ISSN:
0022-2461
Subject:
Eucommia ulmoides; crystal structure; epoxidation reactions; epoxides; hydrolysis; nanohybrids; silicon; thermal stability
Abstract:
... Epoxidized Eucommia ulmoides gum (EEUG) with different epoxy contents is prepared by Eucommia ulmoides gum (EUG) to improve its elasticity and expand its applications. Unlike EUG, the crystallinity of EEUG decreases while the thermal stability increases significantly with the increase in epoxidation degree. Furthermore, the silicon dioxide-graphene oxide (SiO₂-GO) nanohybrid was prepared by situ h ...
DOI:
10.1007/s10853-022-06908-3

28. An interpenetrating-network-like structure in cellulose nanocrystal/polyurethane composites and the relative strengthening mechanism

Author:
Lide Yang; Jianmin Yuan; Pingan Zhang; Tao Wei; Juan Chen; Jiankun Lou; Rutao Huang; Jianru Deng
Source:
Cellulose 2022 v.29 no.9 pp. 5007-5019
ISSN:
0969-0239
Subject:
cellulose; crystal structure; crystallization; extensibility; hydrogen; nanocrystals; polyurethanes; tensile strength
Abstract:
... In this work, cellulose nanocrystals (CNCs)/polyurethane (PU) composites (CPCs) were prepared, whose microstructures and properties were studied. Interestingly, most of the CNCs dispersed in the CPCs have gathered together to form many sea-urchin-like clusters and others to form nanotows (series structures of some CNCs). A three-dimensional CNC network has been constructed by linking every two adj ...
DOI:
10.1007/s10570-022-04612-8

29. An overview of structure engineering to tailor the functionality of monoglyceride oleogels

Author:
Camila A. Palla; Martina Dominguez; María Elena Carrín
Source:
Comprehensive reviews in food science and food safety 2022 v.21 no.3 pp. 2587-2614
ISSN:
1541-4337
Subject:
cooling; crystal structure; crystallization; food safety; monoacylglycerols; nutrient content; oleogels; storage time; ultrasonics
Abstract:
... Monoglyceride (MG)‐based oleogelation is an effective strategy to create soft matter structures with the functionality of fats, but with a nutritional profile similar to edible oils. MG oleogels are mainly studied to replace or reduce trans and saturated fats as well as to develop novel products with improved physical and organoleptic properties. The process consists of direct dispersion of MGs in ...
DOI:
10.1111/1541-4337.12930

30. Annealing Effect on Pla/Eva Blends Performance

Author:
Eduardo da Silva Barbosa Ferreira; Carlos Bruno Barreto Luna; Danilo Diniz Siqueira; Edcleide Maria Araújo; Danyelle Campos de França; Renate Maria Ramos Wellen
Source:
Journal of polymers and the environment 2022 v.30 no.2 pp. 541-554
ISSN:
1566-2543
Subject:
biodegradability; brittleness; contact angle; crystal structure; environment; hardness; impact strength; modulus of elasticity; rheometry; torque; viscosity
Abstract:
... PLA has aroused industrial and scientific interest in recent years, mainly due to its biodegradable character. However, PLA is brittle and displays low impact strength which has motivated researches to improve its toughness. The present work aims to produce PLA/EVA blends, and to investigate the EVA effect on PLA as well as the annealing which carried out at 90 °C for 5 h and provided increase in ...
DOI:
10.1007/s10924-021-02220-4

31. Annealing and heat-moisture treatment of amaranth starch: effect on structural, pasting, and rheological properties

Author:
Munish Siwatch; Ritika B. Yadav; Baljeet S. Yadav
Source:
Journal of food measurement & characterization 2022 v.16 no.3 pp. 2323-2334
ISSN:
2193-4126
Subject:
X-radiation; amaranth starch; crystal structure; food industry; gelatinization temperature; loss modulus; measurement; solubility; storage modulus; thermal stability
Abstract:
... The influence of annealing and heat-moisture treatment on structural, rheological and pasting parameters of amaranth starch was studied. The starch from amaranth seeds was extracted by steeping the seeds in 0.25% NaOH solution and modified through annealing and heat-moisture treatment. The swelling power, solubility, thermal properties, pasting properties, morphology, X-ray crystallinity, FT-IR sp ...
DOI:
10.1007/s11694-022-01325-1

32. Anti-nutrient & bioactive profile, in vitro nutrient digestibility, techno-functionality, molecular and structural interactions of foxtail millet (Setaria italica L.) as influenced by biological processing techniques

Author:
Rajan Sharma; Savita Sharma
Source:
Food chemistry 2022 v.368 pp. 130815
ISSN:
0308-8146
Subject:
Setaria italica; X-ray diffraction; antinutritional factors; antioxidant activity; crystal structure; digestibility; digestible protein; fermentation; food chemistry; germination; hydrolysis; principal component analysis; starch
Abstract:
... The present investigation aimed at assessing the impact of biological processing techniques on bio-and techno-functional characteristics of foxtail millet (Setaria italica L.). Grains were exposed to soaking, germination, fermentation and combination of aforesaid treatments and significant variation (p < 0.05) in anti-nutritional factors, in vitro starch and protein digestibility, bioactive consti ...
DOI:
10.1016/j.foodchem.2021.130815

33. Apis mellifera RidA, a novel member of the canonical YigF/YER057c/UK114 imine deiminase superfamily of enzymes pre-empting metabolic damage

Author:
Cristina Visentin; Giulia Rizzi; Genny Degani; Stefania Digiovanni; Giovanni Robecchi; Alberto Barbiroli; Laura Popolo; Maria Antonietta Vanoni; Stefano Ricagno
Source:
Biochemical and biophysical research communications 2022 v.616 pp. 70-75
ISSN:
0006-291X
Subject:
Apis mellifera; ammonia; circular dichroism spectroscopy; crystal structure; enamines; hydrolases; imines; invertebrates; metabolism; pyruvic acid; research; substrate specificity; tautomers; thermal stability
Abstract:
... The Reactive intermediate deiminase (Rid) protein family is a group of enzymes widely distributed in all Kingdoms of Life. RidA is one of the eight known Rid subfamilies, and its members act by preventing the accumulation of 2-aminoacrylate, a highly reactive enamine generated during the metabolism of some amino acids, by hydrolyzing the 2-iminopyruvate tautomer to pyruvate and ammonia. RidA membe ...
DOI:
10.1016/j.bbrc.2022.05.062

34. Application of Exogenous 6‐benzyladenine at the Silking‐Stage Improves the Starch Quality of Waxy Maize Suffering from Post‐Silking Drought Stress

Author:
Zhenggang Huo; Huan Yang
Source:
Stärke = 2022 v.74 no.5-6 pp. e2100276
ISSN:
0038-9056
Subject:
amylopectin; benzyladenine; corn starch; crystal structure; drought; enthalpy; gelatinization; retrogradation; starch granules; viscosity; water stress; waxy corn
Abstract:
... The application of exogenous 6‐benzyladenine (6‐BA) can mitigate plant responses to drought stress. The effects of spraying exogenous 6‐BA at the silking‐stage on the waxy maize starch physicochemical properties under post‐silking well‐watered and drought conditions are studied using Jingkenuo2000 (JKN2000) and Yunuo7 (YN7) as materials. The starch granule size in response to drought is enlarged i ...
DOI:
10.1002/star.202100276

35. Application of a calcined animal bone to synthesis of graphitic carbon nitride composite

Author:
Takuya Ehiro
Source:
Environmental technology 2022 v.43 no.10 pp. 1573-1582
ISSN:
1479-487X
Subject:
absorption; animals; carbon nitride; crystal structure; differential thermal analysis; environmental technology; graphene; polymers; reflectance spectroscopy; semiconductors; temperature; thermogravimetry; urea; wavelengths
Abstract:
... Graphitic carbon nitride (g-C₃N₄) is a polymeric organic semiconductor that has been extensively developed for various applications. In this study, composites of g-C₃N₄ and calcined animal bone (CAB) were facilely synthesized by calcining a mixture of urea and CAB at different temperatures. The results revealed that the calcination temperature influenced yield, crystallinity, and band gap of g-C₃N ...
DOI:
10.1080/09593330.2020.1841833

36. Application of a chemical clock in material design: chemically programmed synthesis of zeolitic imidazole framework-8

Author:
Norbert Német; Gábor Holló; Gábor Schuszter; Dezső Horváth; Ágota Tóth; Federico Rossi; István Lagzi
Source:
Chemical communications 2022 v.58 no.38 pp. 5777-5780
ISSN:
1364-548X
Subject:
chemical communication; crystal structure; imidazole; materials
Abstract:
... Here we show a time-programmed and autonomous synthesis of zeolitic imidazole framework-8 (ZIF-8) using a methylene glycol–sulfite clock reaction. The induction period of the driving clock reaction, thus, the appearance of the ZIF-8 can be adjusted by the initial concentration of one reagent of the chemical clock. The autonomously synthesized ZIF-8 showed excellent morphology and crystallinity. ...
DOI:
10.1039/d2cc01139e

37. Application of low-cost MFe2O4 (M = Cu, Mn, and Zn) spinels in low-temperature selective catalytic reduction of nitrogen oxide

Author:
Suyan Ding; Chengyan Li; Chao Bian; Jia Zhang; Yunfeng Xu; Guangren Qian
Source:
Journal of cleaner production 2022 v.330 pp. 129825
ISSN:
0959-6526
Subject:
Fourier transform infrared spectroscopy; catalysts; cations; crystal structure; dehydrogenation; energy; mass spectrometry; microrelief; nitric oxide; texture; toxicity; vanadium
Abstract:
... One of the hottest topics in the field of selective catalytic reduction (SCR) of nitrogen oxide is to develop a catalyst with low cost, low toxicity, high activity, and good selectivity for N₂ to replace high-cost and high-toxic vanadium catalyst. In this work, low-cost spinel MFe₂O₄ (M = Cu, Mn, and Zn) were synthesized, and applied in SCR. MnFe₂O₄ exhibited the best activity (99.9%) and selectiv ...
DOI:
10.1016/j.jclepro.2021.129825

38. Applying ultrasound-assisted processing to obtain cellulose fibres from rice straw to be used as reinforcing agents

Author:
Pedro A.V. Freitas; Chelo González-Martínez; Amparo Chiralt
Source:
Innovative food science & emerging technologies 2022 v.76 pp. 102932
ISSN:
1466-8564
Subject:
alkali treatment; crystal structure; gum arabic; heat; hydrophilicity; methylcellulose; permeability; polymers; rice straw; thermal properties; ultrasonic treatment; ultrasonics; water vapor
Abstract:
... Rice straw (RS) is one of the most globally abundant agro-industrial residues. For its valorisation, a green combined ultrasound-reflux heating method was applied to obtain cellulose fibres (CF) from RS. The new method produced CF with a higher yield (37%) than the alkaline process (29%), more hydrophilic, and with a lower tendency to aggregate. Despite the slightly different degree of purificatio ...
DOI:
10.1016/j.ifset.2022.102932

39. Approach to an efficient pretreatment method for rice straw by deep eutectic solvent for high saccharification efficiency

Author:
Premeshworii Devi Maibam; Arun Goyal
Source:
Bioresource technology 2022 v.351 pp. 127057
ISSN:
0960-8524
Subject:
acetic acid; carbohydrate content; cellulose; choline chloride; crystal structure; delignification; endo-1,4-beta-glucanase; hydrolysates; lignin; rice straw; saccharification; solvents; surface area; temperature
Abstract:
... Deep eutectic solvent comprising choline chloride (ChCl) and acetic acid (AA) was used for rice straw (RS) pretreatment. Effect of ChCl: AA molar ratio, time and temperature on lignin removal and retainment of total carbohydrate content (TCC) in pretreatment process were evaluated by central composite design (CCD) approach. The pretreatment temperature and molar ratio of AA to ChCl played a signif ...
DOI:
10.1016/j.biortech.2022.127057

40. Assessing the therapeutic potential of agomelatine, ramelteon, and melatonin against SARS-CoV-2

Author:
Pradeep Kumar Yadalam; Thodur Madapusi Balaji; Saranya Varadarajan; Khalid J. Alzahrani; Mohammad S. Al-Ghamdi; Hosam Ali Baeshen; Mohammed Farhan A. Alfarhan; Zohaib Khurshid; Shilpa Bhandi; Raghunathan Jagannathan; Vikrant R. Patil; A. Thirumal Raj; Jithendra Ratnayake; Shankargouda Patil
Source:
Saudi journal of biological sciences 2022 v.29 no.5 pp. 3140-3150
ISSN:
1319-562X
Subject:
Severe acute respiratory syndrome coronavirus 2; adjuvants; computer simulation; computer software; crystal structure; databases; density functional theory; designer drugs; humans; ligands; melatonin; molecular dynamics; morbidity; mortality; peptidyl-dipeptidase A; readability; therapeutics
Abstract:
... The SARS-Cov-2(severe acute respiratory syndrome coronavirus 2) infection affecting human populations worldwide is now a very concerning issue considering the morbidity and mortality rates. Despite several measures followed by the medical fraternity and general public, there is no resolution. Therapeutic measures to tackle the infection have been based on researching new designer drug molecules th ...
DOI:
10.1016/j.sjbs.2022.01.049

41. Bacterial antagonism of Chromobacterium haemolyticum and characterization of its putative type VI secretion system

Author:
Ye Htut Zwe; Manisha Yadav; Michelle Mei Zhen Ten; Mahalashmi Srinivasan; Chacko Jobichen; J. Sivaraman; Dan Li
Source:
Research in microbiology 2022 v.173 no.3 pp. 103918
ISSN:
0923-2508
Subject:
Chromobacterium; Escherichia coli; Listeria monocytogenes; Salmonella; Staphylococcus aureus; antagonism; antibiosis; biofilm; coculture; crystal structure; genes; hydroponics; inoculum; loci; nutrient availability; research; type VI secretion system; virulence
Abstract:
... This study reports the isolation of a new Chromobacterium haemolyticum strain named WI5 from a hydroponic farming facility. WI5 exhibited remarkable bacterial antagonistic properties, eliminating Salmonella, Escherichia coli, Listeria monocytogenes and Staphylococcus aureus (initial inoculum load ∼10⁵ CFU/ml) in dual-species co-culture biofilms. Antagonism was strictly contact-dependent and highly ...
DOI:
10.1016/j.resmic.2021.103918

42. Bacterial cellulose: recent progress in production and industrial applications

Author:
Nermin Hande Avcioglu
Source:
World journal of microbiology & biotechnology 2022 v.38 no.5 pp. 86
ISSN:
0959-3993
Subject:
Acetobacter; Achromobacter; Agrobacterium; Azotobacter; Gluconacetobacter; Lactobacillus; arabinose; biodegradability; biopolymers; biotechnology; cellulose; crystal structure; hemicellulose; lignin; nanofibers; pectins; polymerization; porosity; surface area; tensile strength
Abstract:
... Bacterial cellulose (BC) is synthesized as a valuable extracellular biopolymer by several bacteria belonging to the genera of Acetobacter, Achromobacter, Komagataeibacter, Agrobacterium, Bacillus, Azotobacter, Sarcinia, Lactobacillus and Gluconacetobacter. Unlike plant cellulose, since BC does not contain lignin, hemicellulose, pectin, arabinose and other plant-derived contaminants, it can be obta ...
DOI:
10.1007/s11274-022-03271-y

43. Beneficiation of cactus fruit waste seeds for the production of cellulose nanostructures: Extraction and properties

Author:
Anass Ait Benhamou; Zineb Kassab; Abdelghani Boussetta; Mohamed Hamid Salim; El-Houssaine Ablouh; Mehdi Nadifiyine; Abou El Kacem QAISS; Amine MOUBARIK; Mounir El ACHABY
Source:
International journal of biological macromolecules 2022 v.203 pp. 302-311
ISSN:
0141-8130
Subject:
acid hydrolysis; biomass; byproducts; cactus pears; cellulose; crystal structure; hemicellulose; industry; lignin; lignocellulose; nanocrystals; sulfates; sulfuric acid; wastes; zeta potential
Abstract:
... Cactus fruit waste seeds (CWS) are a by-product of the cactus fruit processing industry. Until now, CWS are not recoverable in any sector. The valorization of these residues may reduce their volume in the environment and transform them into valuable products. In this work, CWS have been identified for the first time as a sustainable lignocellulosic source. Cellulose microfibers (CMFs) and nanocrys ...
DOI:
10.1016/j.ijbiomac.2022.01.163

44. Bifunctional nickel foam composite cathode co-modified with CoFe@NC and CNTs for electrocatalytic degradation of atrazine over wide pH range

Author:
Xiuping Sun; Haiqiang Qi; Zhirong Sun
Source:
Chemosphere 2022 v.286 pp. 131972
ISSN:
0045-6535
Subject:
Escherichia coli; alloys; atrazine; carbon; carbon nanotubes; catalytic activity; cathodes; crystal structure; elemental composition; foams; free radicals; hydrogen peroxide; hydroxyl radicals; nickel; pH; singlet oxygen; superoxide anion; toxicity
Abstract:
... Bifunctional cathodes have attracted widespread interest in the heterogeneous electro-Fenton (hetero-EF) process. In this study, the bifunctional composite cathode co-modified with N-doped carbon CoFe alloy (CoFe@NC) and carbon nanotubes (CNTs), designated as CoFe@NC-CNTs/CNTs/NF, integrating hydrogen peroxide (H₂O₂) synthesis and catalysis, was prepared for efficient degradation of atrazine (ATZ) ...
DOI:
10.1016/j.chemosphere.2021.131972

45. Binational survey of personal protective equipment (PPE) pollution driven by the COVID-19 pandemic in coastal environments: Abundance, distribution, and analytical characterization

Author:
Gabriel Enrique De-la-Torre; Diana Carolina Dioses-Salinas; Carlos Ivan Pizarro-Ortega; Melisa D. Fernández Severini; Ana D. Forero López; Romina Mansilla; Félix Ayala; Luzby María Jimenez Castillo; Elizabeth Castillo-Paico; Daniel A. Torres; Lisseth Meliza Mendoza-Castilla; Carolina Meza-Chuquizuta; Jhonson K. Vizcarra; Melissa Mejía; Javier Jeirzinho Valdivia De La Gala; Eduardo Alonso Sayra Ninaja; Danny Lowis Siles Calisaya; Walter Eduardo Flores-Miranda; Johan Leandro Eras Rosillo; Dante Espinoza-Morriberón; Karen N. Gonzales; Fernando G. Torres; Guido Noé Rimondino; Mohamed Ben-Haddad; Sina Dobaradaran; Tadele Assefa Aragaw; Luis Santillán
Source:
Journal of hazardous materials 2022 v.426 pp. 128070
ISSN:
0304-3894
Subject:
COVID-19 infection; X-ray diffraction; anti-infective agents; crystal structure; energy-dispersive X-ray analysis; face; pollution; polyamides; polyethylene terephthalates; polypropylenes; safety equipment; Argentina; Peru
Abstract:
... In the present contribution, two nationwide surveys of personal protective equipment (PPE) pollution were conducted in Peru and Argentina aiming to provide valuable information regarding the abundance and distribution of PPE in coastal sites. Additionally, PPE items were recovered from the environment and analyzed by Fourier transformed infrared (FTIR) spectroscopy, Scanning electron microscopy (S ...
DOI:
10.1016/j.jhazmat.2021.128070

46. Binding mode of brazzein to the taste receptor based on crystal structure and docking simulation

Author:
Tae-Yeon Kim; Eui-jeon Woo; Tae-Sung Yoon
Source:
Biochemical and biophysical research communications 2022 v.592 pp. 119-124
ISSN:
0006-291X
Subject:
alanine; crystal structure; cysteine; databases; disulfides; hydrogen; lysine; models; protein structure; protein sweeteners; research; sugars; sweetness; taste; taste receptors
Abstract:
... Several natural substances including protein produce sweet taste. Brazzein, derived from the plant Pentadipladra brazzeana, is one of the sweet proteins that bind to the taste receptor with stronger sweetness than sugar. Mutations of this protein affect its flavour, yielding higher sweetness in D29K and lower sweetness in R43A. To elucidate its sweet mechanism in the taste receptor, we determined ...
DOI:
10.1016/j.bbrc.2022.01.004

47. Bio-inspired composite by hydroxyapatite mineralization on (bis)phosphonate-modified cellulose-alginate scaffold for bone tissue engineering

Author:
Yahui Zheng; Luyao Wang; Xuemeng Bai; Yinghong Xiao; Jianfei Che
Source:
Colloids and surfaces 2022 v.635 pp. 127958
ISSN:
0927-7757
Subject:
alginates; biomimetics; bones; cellulose; composite materials; crystal structure; crystallites; hydroxyapatite; mineralization; oxidation; porosity; schiff bases; sodium
Abstract:
... A novel three-dimensional composite scaffold was fabricated via a carefully designed strategy including preparation of a composite with components of cellulose as backbone and alginate as pore size expander, (bis)phosphonate-modification via oxidation with sodium periodate followed by Schiff-base reaction with sodium alendronate, and final biomimetic mineralization. The scaffolds possess appropria ...
DOI:
10.1016/j.colsurfa.2021.127958

48. Biochemical, structural, and functional studies reveal that MAB_4324c from Mycobacterium abscessus is an active tandem repeat N‐acetyltransferase

Author:
Husam M. A. B. Alsarraf; Kien Lam Ung; Matt D. Johansen; Juliette Dimon; Vincent Olieric; Laurent Kremer; Mickaël Blaise
Source:
FEBS letters 2022 v.596 no.12 pp. 1516-1532
ISSN:
0014-5793
Subject:
Mycobacterium abscessus; acetyltransferases; crystal structure; drug resistance; macrophages; polyamines; virulence
Abstract:
... Mycobacterium abscessus is a pathogenic non‐tuberculous mycobacterium that possesses an intrinsic drug resistance profile. Several N‐acetyltransferases mediate drug resistance and/or participate in M. abscessus virulence. Mining the M. abscessus genome has revealed genes encoding additional N‐acetyltransferases whose functions remain uncharacterized, among them MAB_4324c. Here, we showed that the ...
DOI:
10.1002/1873-3468.14360

49. Biodegradable nano composite reinforced with cellulose nano fiber from coconut industry waste for replacing synthetic plastic food packaging

Author:
Ramachandran Arun; Ramesh Shruthy; Radhakrishnan Preetha; Valiathan Sreejit
Source:
Chemosphere 2022 v.291 pp. 132786
ISSN:
0045-6535
Subject:
acid hydrolysis; antimicrobial properties; antioxidants; biodegradability; cellulose; cellulose nanofibers; coconuts; composite films; contact angle; crystal structure; food industry; hydrophobicity; industrial wastes; lemon oil; linseed oil; nanocomposites; plastics; pollution; polyethylene film; polyvinyl alcohol; raw materials
Abstract:
... Environmental pollution due to the usage of non-biodegradable synthetic plastic and agro-waste disposal/burning are major issues nowadays. Hence, in the present study, agro-waste (coconut shells) was selected as raw material to synthesize cellulose nanofibers, and it was incorporated into a biodegradable packaging film to enhance its properties. Coconut shell cellulose nanofibers (CNF) were synthe ...
DOI:
10.1016/j.chemosphere.2021.132786

50. Biodegradation of modified starch/poly lactic acid nanocomposite in soil

Author:
Somayeh Sharafi Zamir; Babak Fathi; Abdellah Ajji; Mathieu Robert; Said Elkoun
Source:
Polymer degradation and stability 2022 v.199 pp. 109902
ISSN:
0141-3910
Subject:
Fourier transform infrared spectroscopy; X-radiation; biodegradation; crystal structure; glass transition temperature; hydrolysis; modified starch; nanocomposites; nanocrystals; soil; weight loss
Abstract:
... In this work, the effect of lactic acid grafted starch nanocrystals (g-SNCs) on the rate of the soil burial degradation of Poly (lactic acid) was studied using the weight loss measurement (wt.%), X-ray Photo Electron Spectroscopy (XPS), Fourier-Transform Infrared Spectroscopy (FT-IR) and Differential Scanning Calorimetry (DSC). The weight loss results demonstrated that the degradation rate of PLA ...
DOI:
10.1016/j.polymdegradstab.2022.109902

51. Biomass hydrothermal conversion under CO2 atmosphere: A way to improve the regulation of hydrothermal products

Author:
Wei Yi; Diweina Zheng; Xianhua Wang; Yingquan Chen; Junhao Hu; Haiping Yang; Jingai Shao; Shihong Zhang; Hanping Chen
Source:
Science of the total environment 2022 v.807 pp. 150900
ISSN:
0048-9697
Subject:
biofuels; biomass; carbon dioxide; cellulose; corn stover; crystal structure; environment; hydrochars; lignin; liquids; temperature; wastes
Abstract:
... In this study, batched hydrothermal experiments on corn stalk were conducted at 240–330 °C under CO₂ or inert (N₂) atmosphere. The distribution and characteristics of gaseous, solid, and liquid products were analyzed in detail to comprehensively investigate the effects of CO₂ on the hydrothermal conversion of biomass, especially on the cellulose and lignin in biomass. The results demonstrate that ...
DOI:
10.1016/j.scitotenv.2021.150900

52. Biosynthesis and applications of iron oxide nanocomposites synthesized by recombinant Escherichia coli

Author:
Jae Hwan Jung; Minkyung Cho; Tae Seok Seo; Sang Yup Lee
Source:
Applied microbiology and biotechnology 2022 v.106 no.3 pp. 1127-1137
ISSN:
0175-7598
Subject:
Escherichia coli; X-ray diffraction; biosynthesis; biotechnology; crystal structure; enzyme-linked immunosorbent assay; iron oxides; magnetic fields; metallothionein; microbiology; minimum inhibitory concentration; nanocomposites; prostate-specific antigen; transmission electron microscopy
Abstract:
... Recombinant Escherichia coli (E. coli) strain that produces phytochelatin (PC) and/or metallothionein (MT) can synthesize various metal nanoparticles (NPs) by reducing metal ions. Here we report in vivo biosynthesis of iron oxide nanocomposites (NCs) using recombinant E. coli. We designed a strategy of biosynthesizing iron oxide NCs by first internalizing chemically synthesized iron oxide NPs, fol ...
DOI:
10.1007/s00253-022-11779-4

53. Biosynthesis of silver nanoparticles using three different fruit extracts: Characterization, formation mechanism and estrogen removal

Author:
Xiulan Weng; Keran Yang; Gary Owens; Zuliang Chen
Source:
Journal of environmental management 2022 v.316 pp. 115224
ISSN:
0301-4797
Subject:
absorption; biosynthesis; crystal structure; economic sustainability; estriol; estrone; fruits; grapefruits; nanosilver; oxidation; phytochemicals; remediation; tomatoes
Abstract:
... Plant-mediated synthesis of silver nanoparticles (Ag NPs) is a green and economically viable method, which can offer numerous benefits over traditional chemical and physical methods. In this paper, three fruit extracts (tomato, orange, and grapefruit) served simultaneously as stabilizing and reducing agents during the biosynthesis of Ag NPs. The formation of Ag NPs, were monitored using the UV–vis ...
DOI:
10.1016/j.jenvman.2022.115224

54. Bottom-Up Synthesis of 8-Connected Three-Dimensional Covalent Organic Frameworks for Highly Efficient Ethylene/Ethane Separation

Author:
Fazheng Jin; En Lin; Tonghai Wang; Shubo Geng; Ting Wang; Wansheng Liu; Fanhao Xiong; Zhifang Wang; Yao Chen; Peng Cheng; Zhenjie Zhang
Source:
Journal of the American Chemical Society 2022 v.144 no.12 pp. 5643-5652
ISSN:
1520-5126
Subject:
adsorbents; adsorption; aldehydes; condensation reactions; crystal structure; ethane; ethylene; porosity; value added
Abstract:
... Developing cost-/energy-efficient separation techniques for purifying ethylene from an ethylene/ethane mixture is highly important but very challenging in the industrial process. Herein, using a bottom-up [8 + 2] construction approach, we rationally designed and synthesized three three-dimensional covalent organic frameworks (COFs) with 8-connected bcu networks, which can selectively remove ethane ...
DOI:
10.1021/jacs.2c01058

55. Branched chain length distribution of amylopectin in rice flour as a key attribute for determining the quality of extruded rice noodles

Author:
Taiyoung Kang; Mi‐Ra Yoon; Jeom‐Sig Lee; Kyeong‐Ok Choi
Source:
Journal of food processing and preservation 2022 v.46 no.4 pp. e16473
ISSN:
0145-8892
Subject:
amylopectin; amylose; crystal structure; enthalpy; extrusion; gelatinization; gelatinization temperature; noodles; rice; rice flour; texture
Abstract:
... The objective of this study was to investigate the effects of the branched chain length (BCL) distribution of amylopectin and crystallinity on the gelatinization property and the quality of extruded rice noodle. From the three different types of rice flour (Palbangmi [PBM], Saegoami [SGAM], and Mimyeon [MM]) with high amylose contents, MM displayed higher levels of longer amylopectin branched chai ...
DOI:
10.1111/jfpp.16473

56. Brazilian Cerrado wheat: Technological quality of genotypes grown in tropical locations

Author:
Maria Eugenia Araujo Silva Oliveira; Thais de Oliveira Alves; Luiz Carlos Gutkoski; Martha Zavariz de Miranda; Mariana Simões Larraz Ferreira; Cristina Yoshie Takeiti
Source:
Journal of food processing and preservation 2022 v.46 no.2 pp. e16228
ISSN:
0145-8892
Subject:
cerrado; corn; crystal structure; enthalpy; flour; food security; genetic improvement; gluten; irrigation systems; markets; prebiotics; resistant starch; seeds; wheat; Brazil
Abstract:
... Brazilian Cerrado wheat has emerged as an alternative to expand a new agricultural frontier in tropical areas. In this study, technological quality of 34 samples grown in five locations situated in the Cerrado Mineiro was evaluated in terms of their grain, flour, and starch properties. Damaged starch was positively (p < .05) correlated with Single Kernel Characterization System parameters (r = 0.5 ...
DOI:
10.1111/jfpp.16228

57. Built-in electric field enhanced BiFeO3 photo-Fenton degradation Rhodamine B solution

Author:
Yuanjiu Yan; Ruoheng Wang; Mieralimu Maimaitituersun; Huajun Sun; Xiaofang Liu
Source:
Journal of materials science 2022 v.57 no.13 pp. 6900-6913
ISSN:
0022-2461
Subject:
X-ray diffraction; crystal structure; electric field; electron paramagnetic resonance spectroscopy; light; reflectance spectroscopy; rhodamines; surface area; wastewater treatment
Abstract:
... BiFeO₃ nanoflakes (BFO NFs) were synthesized via a facile hydrothermal route. The crystal structure, morphology, specific surface area and optical properties of the flakes were characterized by X-Ray Diffraction (XRD), Brunner–Emmet–Teller measurements (BET) and UV–vis Diffuse Reflectance Spectrum (UV–vis DRS). The results showed that the thickness and diameter of BFO NFs are 100–150 nm and 1.0–1. ...
DOI:
10.1007/s10853-022-06916-3

58. CH₃NH₃⁺ and Pb immobilization through PbI₂ binding by organic molecule doping for homogeneous organometal halide perovskite films

Author:
He Jiang; Qianqian Yao; Xiaoyue Zhang; Bangmin Zhang; Weiwei Xing; Yijing Sun; Weiming Xiong; Xin Luo; Wenpeng Zhu; Yue Zheng
Source:
Journal of materials chemistry A 2022 v.10 no.23 pp. 12359-12370
ISSN:
2050-7496
Subject:
crystal structure; nanofibers; topography
Abstract:
... Organic molecule doping is one of the main strategies to enhance the performance and sustainability of organometal halide perovskite polycrystalline films. However, the mechanisms for interpreting organic molecule doping are poorly understood, limiting the development of perovskite solar cells (PSCs). Herein, we revisit regular perovskite films and study the doping effects of two typical organic m ...
DOI:
10.1039/d2ta01340a

59. Carboxymethyl carrageenan immobilized on 3D-printed polycaprolactone scaffold for the adsorption of calcium phosphate/strontium phosphate adapted to bone regeneration

Author:
Maryam Ataie; Jhamak Nourmohammadi; Ehsan Seyedjafari
Source:
International journal of biological macromolecules 2022 v.206 pp. 861-874
ISSN:
0141-8130
Subject:
adsorption; alkaline phosphatase; bone formation; bones; calcium; calcium phosphates; compression strength; crystal structure; kappa carrageenan; polymerase chain reaction; strontium; viability
Abstract:
... Three dimensional (3D) substrates based on natural and synthetic polymers enhance the osteogenic and mechanical properties of the bone tissue engineering scaffolds. Here, a novel bioactive composite scaffolds from polycaprolactone /kappa-carrageenan were developed for bone regeneration applications. 3D PCL scaffolds were fabricated by 3D printing method followed by coating with carboxymethyl kappa ...
DOI:
10.1016/j.ijbiomac.2022.03.096

60. Carboxymethyl cellulose from Young Palmyra palm fruit husk: Synthesis, characterization, and film properties

Author:
Pimonpan Kaewprachu; Chalalai Jaisan; Saroat Rawdkuen; Wirongrong Tongdeesoontorn; Warinporn Klunklin
Source:
Food hydrocolloids 2022 v.124 pp. 107277
ISSN:
0268-005X
Subject:
Borassus flabellifer; agroindustrial byproducts; carboxymethylcellulose; crystal structure; fruits; hulls; hydrocolloids; permeability; sodium hydroxide; solubility; tensile strength; water vapor
Abstract:
... A young Palmyra palm fruit husk, an agricultural by-product after removing sweet jelly seed, was used as starting material for carboxymethyl cellulose (CMC) synthesis. Significant increases for percent yield (101.35–125.72%), degree of substitution (DS: 0.19–0.58), and solubility (10.04–83.58%) were observed when sodium hydroxide (NaOH) level increased (30–60%, w/v) (P < 0.05). The crystallinity o ...
DOI:
10.1016/j.foodhyd.2021.107277

61. Catalytic SrMoO₄ nanoparticles and conducting polymer composite sensor for monitoring of K⁺-induced dopamine release from neuronal cells

Author:
Khatun A. Jannath; Mahmood Hassan Akhtar; N. G. Gurudatt; Deog-Su Park; Kwang Bok Kim; Yoon-Bo Shim
Source:
Journal of materials chemistry B 2022 v.10 no.5 pp. 728-736
ISSN:
2050-7518
Subject:
calcium; carbon; catalysts; catalytic activity; crystal structure; detection limit; dopamine; drugs; electrodes; hot water treatment; neurons; oxidation; polymers
Abstract:
... Octahedral SrMoO₄ nanoparticles (NPs) with a high degree of crystallinity and controlled size (250–350 nm) were synthesized for the first time by employing a facile hydrothermal method. The prepared NPs were composited with a carboxyl group bearing conducting polymer (2,2:5,2-terthiophene-3-(p-benzoic acid, TBA)) to attain a stable sensor probe (pTBA/SrMoO₄) which was analyzed using various surfac ...
DOI:
10.1039/d1tb02295d

62. Catalytic valorisation of various paper wastes into levulinic acid, hydroxymethylfurfural, and furfural: Influence of feedstock properties and ferric chloride

Author:
Shanta Dutta; Qiaozhi Zhang; Yang Cao; Chunfei Wu; Konstantinos Moustakas; Shicheng Zhang; Ka-Hing Wong; Daniel C.W. Tsang
Source:
Bioresource technology 2022 v.357 pp. 127376
ISSN:
0960-8524
Subject:
cellulose; crystal structure; feedstocks; ferric chloride; furfural; hemicellulose; levulinic acid; lignin; lignocellulose; solvents; thermal stability; wastes
Abstract:
... Lignocellulosic paper waste constitutes a major waste stream globally, which should be valorised for chemical production. However, paper properties (e.g., feedstock composition, cellulosic crystallinity, and thermal stability/degradability) vary with raw materials and pulping processes. This study investigated levulinic acid (LA), hydroxymethylfurfural (HMF), and furfural production by H₂SO₄ and F ...
DOI:
10.1016/j.biortech.2022.127376

63. Cell-wall structural carbohydrates reinforcements are part of the defence mechanisms of wheat against Russian wheat aphid (Diuraphis noxia) infestation

Author:
Mpho S. Mafa; Ellen Rufetu; Orbett Alexander; Gabre Kemp; Lintle Mohase
Source:
Plant physiology and biochemistry 2022 v.179 pp. 168-178
ISSN:
0981-9428
Subject:
Diuraphis noxia; cell walls; crosslinking; crystal structure; cultivars; lignin; peroxidase; plant physiology; polysaccharides; virulence; wheat; South Africa
Abstract:
... Russian wheat aphid (RWA) is one of the most challenging pests for wheat crops globally. In South Africa, RWA has breached the strategy of introducing resistant genes into wheat plants, and so far, five RWA biotypes with different virulence levels have been documented in the field. Our study investigated how the cell wall plays a defensive role in Tugela-Dn1 (susceptible) and-Dn5 (resistant) culti ...
DOI:
10.1016/j.plaphy.2022.03.018

64. Cellulose I nanocrystals (CNCs I) prepared in mildly acidic lithium bromide trihydrate (MALBTH) and their application for stabilizing Pickering emulsions

Author:
Rui Chen; Zihao Ma; Dayin Sun; Xing Wang; Ying Han
Source:
International journal of biological macromolecules 2022 v.201 pp. 59-66
ISSN:
0141-8130
Subject:
cellulose; crystal structure; formic acid; hydrolysis; lithium; nanocrystals
Abstract:
... This study proposed a sustainable method to prepare cellulose I nanocrystals (CNCs I) from microcrystalline cellulose (MCC) in a mildly acidic lithium bromide trihydrate (MALBTH) system, a concentrated (50 wt%) solution of LiBr in water with recyclable formic acid (FA). First, the MCC was treated in the MALBTH system to generate CNCs with a uniform size, yield higher than 68.49% and crystallinity ...
DOI:
10.1016/j.ijbiomac.2021.12.110

65. Cellulose Nanofibers as Functional Biomaterial from Pineapple Stubbles via TEMPO Oxidation and Mechanical Process

Author:
Kenly Araya-Chavarría; Ruth Rojas; Karla Ramírez-Amador; Belkis Sulbarán-Rangel; Orlando Rojas; Marianelly Esquivel-Alfaro
Source:
Waste and biomass valorization 2022 v.13 no.3 pp. 1749-1758
ISSN:
1877-2641
Subject:
biocompatible materials; biomass; cellulose; cellulose nanofibers; crystal structure; energy; fruits; oxidation; pineapples; thermal stability; value added; wastes
Abstract:
... The pineapple fruit when harvested generates a large amount of residual biomass; this biomass can be used to generate value-added products such as cellulose nanofibers. This study was focused on the isolation of CNF from pineapple leaves after oxidation pretreatment with 2,2,6,6-tetramethylpireridine-1-oxyl, followed by mechanical deconstruction of the fibers via combination of grinding and microf ...
DOI:
10.1007/s12649-021-01619-3

66. Cellulose electrospinning from ionic liquids: The effects of ionic liquid removal on the fiber morphology

Author:
Edvinas Krugly; Ingrida Pauliukaityte; Darius Ciuzas; Mindaugas Bulota; Laura Peciulyte; Dainius Martuzevicius
Source:
Carbohydrate polymers 2022 v.285 pp. 119260
ISSN:
0144-8617
Subject:
bioeconomics; cellulose; cellulosic fibers; cotton; crystal structure; ionic liquids; porosity; strength (mechanics)
Abstract:
... The importance of the cellulose cycle has been increasing during the last decade along the ambitious targets of bioeconomy, however many novel fabrication processes yet lack of technological robustness. We present the optimization process for the fabrication of cellulose fibrous matrix by wet electrospinning via the controlled removal of the ionic liquids in order to avoid the formation of film-li ...
DOI:
10.1016/j.carbpol.2022.119260

67. Cellulose nanocrystals obtained from microcrystalline cellulose by p-toluene sulfonic acid hydrolysis, NaOH and ethylenediamine treatment

Author:
Songlin Wang; Qian Wang; Yao Kai
Source:
Cellulose 2022 v.29 no.3 pp. 1637-1646
ISSN:
0969-0239
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; acid hydrolysis; cellulose; crystal structure; ethylenediamines; nanocrystals; sodium hydroxide; sulfonic acids; thermal stability; thermogravimetry; transmission electron microscopy; zeta potential
Abstract:
... Cellulose nanocrystals (CNCs) were first isolated from microcrystalline cellulose (MCC) by p-toluene sulfonic acid (p-TsOH) hydrolysis. Cellulose II nanocrystal (CNC II) and cellulose III nanocrystal (CNC III) were then formed by swelling the obtained cellulose I nanocrystal (CNC I) in concentrated sodium hydroxide solutions and ethylenediamine (EDA) respectively. The properties of CNC I, CNC II a ...
DOI:
10.1007/s10570-021-04409-1

68. Cellulose nanocrystals: Fundamentals and biomedical applications

Author:
Prajakta Mali; Atul P. Sherje
Source:
Carbohydrate polymers 2022 v.275 pp. 118668
ISSN:
0144-8617
Subject:
antibacterial properties; antineoplastic activity; antiviral properties; biodegradability; bioimaging; biosensors; cellulose; cotton; crystal structure; drugs; flax; gene transfer; hydrophilicity; immobilized enzymes; lipids; nanocrystals; surface area; tensile strength; wood
Abstract:
... The present review explores the recent developments of cellulose nanocrystals, a class of captivating nanomaterials in variety of applications. CNCs are made by acid hydrolysing cellulosic materials like wood, cotton, tunicate, flax fibers by sonochemistry. It has many desirable properties, including a high tensile strength, wide surface area, stiffness, exceptional colloidal stability, and the ab ...
DOI:
10.1016/j.carbpol.2021.118668

69. Cerium oxide decorated 5-fluorouracil loaded chitosan nanoparticles for treatment of hepatocellular carcinoma

Author:
Anbazhagan Sathiyaseelan; Kandasamy Saravanakumar; Myeong-Hyeon Wang
Source:
International journal of biological macromolecules 2022 v.216 pp. 52-64
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; antineoplastic activity; apoptosis; ceric oxide; chitosan; chorioallantoic membrane; crystal structure; fibroblasts; fluorouracil; hepatoma; mice; nanoceria; reactive oxygen species; toxicity
Abstract:
... Reactive oxygen species (ROS) play a crucial role in the mammalian system in both normal and pathological conditions. Hence, this work prepared and characterized the ROS responsive cerium oxide nanoparticles (CeO₂ NPs) decorated 5-fluorouracil (5FU) loaded chitosan (CS) nanoparticles (CS-5FU NPs) for enhanced anticancer activity in hepatocellular carcinoma (HepG2 cells). CeO₂ NPs decorated CS-5FU ...
DOI:
10.1016/j.ijbiomac.2022.06.112

70. Changes in chemical composition and starch structure in rice noodle cultivar influence Rapid Visco analysis and texture analysis profiles under shading

Author:
Hong Chen; Tao Wang; Fei Deng; Fan Yang; Xiaoyuan Zhong; Qiuping Li; Wanjun Ren
Source:
Food chemistry: X 2022 v.14 pp. 100360
ISSN:
2590-1575
Subject:
amylose; carbohydrate structure; crystal structure; cultivars; food chemistry; gelatinization; gels; hardness; noodles; protein content; rice; rice flour; texture; viscosity
Abstract:
... GuichaoII, a rice variety with high amylose content widely used to make rice noodles, exhibits high hardness (631.07–729.43), gel consistency (8.47–9.47 mm), and hold viscosity/peak viscosity (HPV/PKV) (0.85–0.88); however, it has a low protein content (5.74–6.96%) and swelling factor (5.49–9.77). Herein, GuichaoII was subjected to low-light stress (53% reduction) during the grain filling stage. T ...
DOI:
10.1016/j.fochx.2022.100360

71. Changes in structures and digestibility of amylose-oleic acid complexes following microwave heat-moisture treatment

Author:
Fubin Wu; Bo Chi; Ruyan Xu; Huiyun Liao; Xiaoqi Xu; Xiaoyan Tan
Source:
International journal of biological macromolecules 2022 v.214 pp. 439-445
ISSN:
0141-8130
Subject:
amylose; crystal structure; digestibility; dissociation; enzymatic reactions; enzymes; oleic acid; resistant starch; thermal stability; water content
Abstract:
... Amylose-oleic acid complexes (AOA) were exposed to microwave heat-moisture treatment (M-HMT) with different moisture content (MC), and the variations in structures and digestibility were investigated. M-HMT caused the dissociation of helical structures and destruction of short-range molecular order of AOA. Meanwhile, the molecules of amylose and oleic acid rearranged and more amylose-oleic acid co ...
DOI:
10.1016/j.ijbiomac.2022.06.133

72. Changes of starch during thermal processing of foods: Current status and future directions

Author:
Xia Liu; Shiqing Huang; Chen Chao; Jinglin Yu; Les Copeland; Shujun Wang
Source:
Trends in food science & technology 2022 v.119 pp. 320-337
ISSN:
0924-2244
Subject:
crystal structure; enzymatic reactions; gelatinization; nutritive value; retrogradation; starch
Abstract:
... Most starchy foods are subjected to thermal processing before consumption, leading to the changes in structural and functional properties of starch. Understanding these changes is of great theoretical interest and industrial significance in that it indicates how thermal processing can modulate the quality and nutritive value of starchy foods.Thermal treatment in the presence of water, as occurs du ...
DOI:
10.1016/j.tifs.2021.12.011

73. Changes of the main components, physicochemical properties of distiller’s grains after extrusion processing with focus on modification mechanism

Author:
Chenjie Wang; Yao Liu; Ling Xu; Chunhui Xin; Zhen Tan; Xin Zhang; Chengye Ma; Shanfeng Chen; Hongjun Li
Source:
Food chemistry 2022 v.390 pp. 133187
ISSN:
0308-8146
Subject:
bulk density; crude fiber; crude protein; crystal structure; extrusion; food chemistry; hydrolysis; lignocellulose; microstructure; oils; particle size; soluble fiber; thermal analysis; water solubility
Abstract:
... Distiller’s grains (DGs) possessed great potential utilization value due to their rich active ingredients. However, its utilization efficiency was limited by the large amount of lignocellulose components and water-insoluble proteins. In this work, single screw extrusion was applied to modify physicochemical properties of DGs. Results indicated that extruded distiller's grains (EDGs) exhibited the ...
DOI:
10.1016/j.foodchem.2022.133187

74. Characteristics of Microcrystalline Cellulose from Coir Fibers

Author:
Joyline Gichuki; Patrick Gachoki Kareru; Anthony Ngure Gachanja; Catherine Ngamau
Source:
Journal of natural fibers 2022 v.19 no.3 pp. 915-930
ISSN:
1544-046X
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; angle of repose; bulk density; cellulose; coir; compressibility; crystal structure; glass transition; hemicellulose; lignin; paper; peracetic acid; sodium hydroxide; temperature; thermogravimetry
Abstract:
... This work aimed to extract and characterize microcrystalline cellulose from coir fibers. Extraction was achieved in a two-step process in which the coir fibers were treated with sodium hydroxide for 3 h at 100°C followed by bleaching with peracetic acid to remove residual lignin and hemicellulose. The microcrystalline cellulose powder characteristics such as the bulk density, tapped density, angle ...
DOI:
10.1080/15440478.2020.1764441

75. Characteristics of concentrated lignocellulosic nanofibril suspensions

Author:
Ping Wang; Luyao Huang; Lilong He; Wenhua Gao; Jinsong Zeng; Bin Wang; Jun Xu; Zhiwei Wang
Source:
Cellulose 2022 v.29 no.1 pp. 147-158
ISSN:
0969-0239
Subject:
biomass; cellulose; crystal structure; crystallites; lignocellulose; nanofibers; oxygen; permeability; transportation; water uptake
Abstract:
... Lignocellulosic nanofibrils (LCNFs) are usually isolated from biomass with concentration less than 2.0 wt%. The low concentration limits the transportation and end-use applications of LCNFs. Therefore, the development of concentration process and the characteristics of concentrated LCNF become desirable and important for commercial deployment of LCNF application. In this study, 1.0 wt% LCNF suspen ...
DOI:
10.1007/s10570-021-04304-9

76. Characterization of Natural Cellulose Fiber from the Barks of Vachellia farnesiana

Author:
R. Vijay; Jafrey Daniel James Dhilip; S. Gowtham; S. Harikrishnan; B. Chandru; M. Amarnath; Anish Khan
Source:
Journal of natural fibers 2022 v.19 no.4 pp. 1343-1352
ISSN:
1544-046X
Subject:
Fourier transform infrared spectroscopy; Vachellia farnesiana; X-ray diffraction; cellulosic fibers; chemical analysis; crystal structure; hemicellulose; tensile strength; water content
Abstract:
... The need for environmental friendly materials have stimulated researchers to carry out works in natural fibers, which are substitute for human-made synthetic fibers in many lightweight medium load applications. In the present work, Vachellia farnesiana fiber was selected as a natural fiber. The obtained Vachellia farnesiana fibers were characterized for physical and chemical properties, Thermo Gra ...
DOI:
10.1080/15440478.2020.1764457

77. Characterization of New Cellulosic Cyrtostachys renda and Ptychosperma macarthurii Fibers from Landscaping Plants

Author:
Tamil Moli Loganathan; Mohamed Thariq Hameed Sultan; Mohammad Jawaid; Qumrul Ahsan; Jesuarockiam Naveen; Velu Perumal
Source:
Journal of natural fibers 2022 v.19 no.2 pp. 669-684
ISSN:
1544-046X
Subject:
Ptychosperma; chemical composition; crystal structure; petioles; shear strength; silica; tensile strength; thermal stability
Abstract:
... Cyrtostachys renda (CR) and Ptychosperma macarthurii (PM) fibers, as new cellulosic fibers were studied. The objective of this research is to evaluate the fibers from stem, leaf stalk, and frond of these two plants as reinforcement in the polymer composites. The density, chemical composition, functional group, crystallinity index, and thermal stability were studied for CR and PM fibers. From the a ...
DOI:
10.1080/15440478.2020.1758865

78. Characterization of Physicochemical and Antibacterial Properties of Gelatin and Inulin Nanobiocomposite Films Containing Crystalline Nanocellulose and Malva sylvestris Extract

Author:
Haleh Dabbagh Nikoukheslat; Ainaz Alizadeh; Leila Roufegarinejad; Shahram Hanifian
Source:
Journal of polymers and the environment 2022 v.30 no.7 pp. 3078-3090
ISSN:
1566-2543
Subject:
Fourier transform infrared spectroscopy; Listeria monocytogenes; Malva sylvestris; Salmonella; Staphylococcus aureus; antibacterial properties; cellulose; contact angle; crystal structure; enteritis; environment; gelatin; inulin; nanocomposites; permeability; water content; water vapor
Abstract:
... This study aimed to develop and characterize gelatin and inulin nanobiocomposite films with crystalline nanocellulose (CNC) and Malva sylvestris extract (MSE) for an active packaging system application. Fourier transform infrared structural conformations approved the formation of interactions between gelatin matrix, inulin, and other additives. According to the morphology study, the addition of in ...
DOI:
10.1007/s10924-022-02398-1

79. Characterization of Various Properties of Chemically Treated Allium sativum Fiber for Brake Pad Application

Author:
Vineeth Kumar V.; Senthil Kumaran S.
Source:
Journal of natural fibers 2022 v.19 no.2 pp. 523-535
ISSN:
1544-046X
Subject:
Allium sativum; Fourier transform infrared spectroscopy; acetylation; cellulose; compression molding; crystal structure; electron microscopy; organic compounds; tensile strength; thermal degradation; thermal stability; thermogravimetry
Abstract:
... Allium sativum fiber has a high cellulose content of 69.82% and a low density of 1.32 g/cc. In the present study, various chemical treatments, namely, alkaline, benzoylation, and acetylation were carried out to enhance its properties. The effect of chemical treatments on the fiber and its effect on various properties of the brake pad is studied. Allium sativum raw fiber (ASRₐw), alkaline-treated ( ...
DOI:
10.1080/15440478.2020.1745130

80. Characterization of a new 4,6-α-glucanotransferase from Limosilactobacillus fermentum NCC 3057 with ability of synthesizing low molecular mass isomalto-/maltopolysaccharide

Author:
Weikang Yang; Lufei Sheng; Sheng Chen; Lei Wang; Lingqia Su; Jing Wu
Source:
Food bioscience 2022 v.46 pp. 101514
ISSN:
2212-4292
Subject:
Escherichia coli; amylose; crystal structure; dietary fiber; digestion; molecular weight; pH; small intestine
Abstract:
... 4,6-α-Glucanotransferase (4,6-α-GT) converts starch into product with increased α(1–6) glycosidic bonds ratio, and this product is a new type of soluble dietary fiber with property of escaping small intestine digestion. 4,6-α-GT gained interest recently because of their potential use in enzymatic synthesis of soluble dietary fiber. In this study, a putative GtfB sequence from Limosilactobacillus f ...
DOI:
10.1016/j.fbio.2021.101514

81. Characterization of edible film fabricated with HG-type hawthorn pectin gained using different extraction methods

Author:
Chunge Qin; Guangcheng Yang; Chuanhe Zhu; Min Wei
Source:
Carbohydrate polymers 2022 v.285 pp. 119270
ISSN:
0144-8617
Subject:
Crataegus; citric acid; crystal structure; edible films; hydrochloric acid; hydrophilicity; microwave treatment; oxygen; pectins; permeability; thermal stability; water vapor
Abstract:
... In this study, four HG-type pectins were obtained using hydrochloric acid extraction (HA-HP), citric acid extraction (CA-HP), ultrasonic-assisted extraction (UA-HP), and microwave-assisted extraction (MA-HP). Four pectin films (HA-HPF, CA-HPF, UA-HPF, and MA-HPF) were prepared by a solution casting method, respectively. Compared to four pectins, the asymmetric COO − vibrational peak of UA-HPF, HA- ...
DOI:
10.1016/j.carbpol.2022.119270

82. Characterization of electrospun nanofibers and solvent-casted films based on Centaurea arvensis anthocyanin-loaded PVA/κ-carrageenan and comparing their performance as colorimetric pH indicator

Author:
Samira Forghani; Fariba Zeynali; Hadi Almasi; Hamed Hamishehkar
Source:
Food chemistry 2022 v.388 pp. 133057
ISSN:
0308-8146
Subject:
Centaurea; Ericaceae; adverse effects; anthocyanins; color; colorimetry; crystal structure; food chemistry; nanofibers; pH; polymers; solvents
Abstract:
... In this research, PVA/Ҡ-carrageenan-based colorimetric indicators incorporated with Centaurea arvensis anthocyanin (CAE) were fabricated by two electrospinning and solvent casting methods and their performance as pH indicators were assessed. Chemical immobilization of CAE on PVA and PVA/Ҡ-carrageenan matrixes was approved by FT-IR analysis. According to SEM images, Ҡ-carrageenanaddition improved t ...
DOI:
10.1016/j.foodchem.2022.133057

83. Characterization of mercerized cellulose nanofibrils prepared by aqueous counter collision process

Author:
Daisuke Tatsumi; Atsushi Kanda; Tetsuo Kondo
Source:
Journal of wood science 2022 v.68 no.1 pp. 13
ISSN:
1435-0211
Subject:
cellulose; cellulose nanofibers; crystal structure; mercerization; raw materials; van der Waals forces; wide-angle X-ray scattering; wood
Abstract:
... Cellulose nanofibrils (CNFs) obtained by aqueous counter collision (ACC) methods have amphiphilic Janus-type properties, which appear markedly for ACC–CNFs prepared from bacterial nanocellulose (BNC) pellicles. The amphiphilic Janus-type surface is exposed because of the mechanism involved in ACC pulverizing of cellulose materials, in which the predominant interactions of the (2 0 0) lattice plane ...
DOI:
10.1186/s10086-022-02019-4

84. Chelating effect between uranyl and pyridine N containing covalent organic frameworks: A combined experimental and DFT approach

Author:
Ruoxuan Guo; Yang Liu; Yingzhong Huo; Anrui Zhang; Jiahui Hong; Yuejie Ai
Source:
Journal of colloid and interface science 2022 v.606 pp. 1617-1626
ISSN:
0021-9797
Subject:
adsorbents; adsorption; chelation; crystal structure; density functional theory; heavy metals; pyridines; remediation; uranyl ions
Abstract:
... Covalent organic frameworks (COFs) are promising adsorbents for removing heavy metal ions, and have high crystallinity, a porous structure, and conjugated stability. N-containing functional groups are known to have great affinity for uranyl ions. In this work, to explore the peculiarity of the pyridine N structure as an efficient adsorbent, we chose 2,2′-dipyridine-5,5′-diamine (Bpy) and pyridine- ...
DOI:
10.1016/j.jcis.2021.08.118

85. Chemical and Biological Delignification Treatments from Blue Agave and Sorghum By-Products to Obtain Cellulose Nanocrystals

Author:
J. A. Resendiz-Vazquez; R. Roman-Doval; F. Santoyo-Fexas; M. A. Gómez-Lim; M. Verdín-García; S. Mendoza
Source:
Waste and biomass valorization 2022 v.13 no.2 pp. 1157-1168
ISSN:
1877-2641
Subject:
Agave; Phanerochaete chrysosporium; bagasse; biomass; cellulose; cellulosic fibers; chemical treatment; circular economy; crystal structure; delignification; fermentation; lignin; nanocrystals
Abstract:
... Cellulose was obtained from blue agave bagasse fiber (ABF) and sorghum bagasse fiber (SBF) using the Phanerochaete chrysosporium TF9 strain and the chemical treatment for the delignification process. Fermentation of ABF and SBF with P. chrysosporium TF9 removed 70% and 64% of lignin, respectively; while the chemical delignification method removed 15% and 71% of lignin from ABF and SBF, respectivel ...
DOI:
10.1007/s12649-021-01547-2

86. Chemical and electrochemical synthesis of cobalt hydroxides: selective phase transformation and application to distinct electrocatalytic reactions [Erratum: June 2022, v.10(26); p.12748]

Author:
Joon Yong Park; Ha Young Kim; Yong-Il Kim; So Yeong Jo; Syed Asad Abbas; Dongho Seo; Ahyeon Ma; Ki Min Nam
Source:
Journal of materials chemistry A 2022 v.10 no.22 pp. 12047-12054
ISSN:
2050-7496
Subject:
X-ray diffraction; catalytic activity; cobalt; crystal structure; electrochemistry; electrosynthesis; oxidation; oxygen production; phase transition
Abstract:
... Individual cobalt hydroxides with clearly identified crystal structures can aid in discerning the relationship between the crystal structure and catalytic activity. Herein, the crystal structure of α-Co(OH)₂ and its transformations to other cobalt hydroxides are fully investigated. The α-Co(OH)₂ structure comprised a layered structure with anion intercalation, [Coᴼʰ₀.₇₇Coᵀᵈ₀.₂₃(OH)₁.₇₇]⁰.²³⁺[Cl₀.₂ ...
DOI:
10.1039/d2ta02166h

87. Chemical characteristics of heterogeneous lignocellulosic microfines prepared using the glycol ether-organosolv process: dissolution properties in an NaOH–urea aqueous solution

Author:
Kang-Jae Kim; Ji-Ae Ryu; Tae-Jin Eom
Source:
Holzforschung 2022 v.76 no.6 pp. 535-543
ISSN:
1437-434X
Subject:
aqueous solutions; crystal structure; hemicellulose; lignin; lignin content; lignocellulose; polymerization; softwood; solubility; sugars
Abstract:
... In this study, heterogeneous lignocellulosic microfines (LCMFs) with different physicochemical properties were prepared from softwood by adjusting the reaction conditions of a glycol ether-organosolv process. The dissolution properties of heterogeneous LCMFs in an NaOH–urea aqueous solution were evaluated. As the reaction time increased, the yield and residual lignin content decreased. As the amou ...
DOI:
10.1515/hf-2021-0092

88. Chemical looping gasification using Nickel-containing electroplating sludge and dyeing sludge as oxygen carrier

Author:
Jing Han; Rui Shan; Jing Gu; Haoran Yuan; Yong Chen
Source:
Waste management 2022 v.141 pp. 194-201
ISSN:
0956-053X
Subject:
X-radiation; X-ray diffraction; carbon; crystal structure; elemental composition; energy recovery; fluorescence; gasification; hydrogen; oxygen; porosity; pyrolysis; sludge; surface area; temperature; thermogravimetry
Abstract:
... Nickel-containing electroplating sludge (NiES) and dyeing sludge (DS) were used to prepare oxygen carriers (OCs) for chemical looping gasification (CLG) of DS. X-ray diffraction (XRD), surface area and porosity analysis were employed to investigate the crystal structure and pore structure of NiES and DS ash OCs. It was found that OCs prepared at 850 ℃ for 8 h (850NiES8, 850DS8) exhibited good char ...
DOI:
10.1016/j.wasman.2022.01.016

89. Chlorine-free extraction and structural characterization of cellulose nanofibers from waste husk of millet (Pennisetum glaucum)

Author:
C.D. Midhun Dominic; Vandita Raj; K.V. Neenu; P.M. Sabura Begum; Krzysztof Formela; Mohammad Reza Saeb; Deepak D. Prabhu; P. Poornima Vijayan; T.G. Ajithkumar; Jyotishkumar Parameswaranpillai
Source:
International journal of biological macromolecules 2022 v.206 pp. 92-104
ISSN:
0141-8130
Subject:
Cenchrus americanus; Fourier transform infrared spectroscopy; X-ray diffraction; acid hydrolysis; cellulose; cellulose nanofibers; crystal structure; energy-dispersive X-ray analysis; homogenization; hulls; mercerization; millets; nuclear magnetic resonance spectroscopy; oxalic acid; pulp; temperature; thermogravimetry; transmission electron microscopy
Abstract:
... This study aims to extract cellulose nanofibers (CNFs) from a sustainable source, i.e. millet husk, which is an agro-waste worthy of consideration. Pre-treatments such as mercerisation, steam explosion, and peroxide bleaching (chlorine-free) were applied for the removal of non-cellulosic components. The bleached millet husk pulp was subjected to acid hydrolysis (5% oxalic acid) followed by homogen ...
DOI:
10.1016/j.ijbiomac.2022.02.078

90. Cl-Doped Li₁₀SnP₂S₁₂ with Enhanced Ionic Conductivity and Lower Li-Ion Migration Barrier

Author:
Qingtao Wang; Dongxu Liu; Xuefang Ma; Xiaozhong Zhou; Ziqiang Lei
Source:
ACS applied materials & interfaces 2022 v.14 no.19 pp. 22225-22232
ISSN:
1944-8252
Subject:
X-ray diffraction; activation energy; anodes; cold; crystal structure; density functional theory; electrochemistry; electrolytes; lithium; sulfides
Abstract:
... All-solid-state lithium batteries based on sulfide solid electrolytes have attracted much attention because of their high ionic conductivity. Li₁₀SnP₂S₁₂ (LSPS) has the same structure as Li₁₀GeP₂S₁₂, and there is little difference in ionic conductivity between them, but the preparation cost of LSPS is lower. Here, Cl doping is used to improve the electrochemical stability of the LSPS to the anode ...
DOI:
10.1021/acsami.2c05203

91. Co-crystallized sucrose-soluble fiber matrix: Physicochemical and structural characterization

Author:
Marise Bonifácio Queiroz; Felipe Resende Sousa; Lidiane Bataglia da Silva; Rosa Maria Vercelino Alves; Izabela Dutra Alvim
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.154 pp. 112685
ISSN:
0023-6438
Subject:
X-ray diffraction; crystal structure; endothermy; erythritol; ingredients; sucrose; temperature; water activity; water content
Abstract:
... Dietary fibers are often under-consumed worldwide, even though their health benefits are already established in dietary guidelines, which recommend their daily intake of 25–30 g. Increasing the supply of fiber-enriched food products is a way to improve consumers’ daily intake. This study proposes the development of a mixed sucrose/erythritol/fiber matrix, particulate as a crystalline solid aggrega ...
DOI:
10.1016/j.lwt.2021.112685

92. Co-encapsulation of Pimpinella anisum and Coriandrum sativum essential oils based synergistic formulation through binary mixture: Physico-chemical characterization, appraisal of antifungal mechanism of action, and application as natural food preservative

Author:
Somenath Das; Vipin Kumar Singh; Anand Kumar Chaudhari; Deepika; Abhishek Kumar Dwivedy; Nawal Kishore Dubey
Source:
Pesticide biochemistry and physiology 2022 v.184 pp. 105066
ISSN:
0048-3575
Subject:
Aspergillus flavus; Coriandrum sativum; Pimpinella anisum; antioxidants; biosynthesis; calcium; chitosan; computer simulation; crystal structure; ergosterol; food preservatives; fumigation; fungi; genetic engineering; linalool; lipid peroxidation; mammals; mechanism of action; nanoemulsions; pesticides; plasma membrane; rice; secretion; stored grain
Abstract:
... The present study aimed to co-encapsulate binary synergistic formulation of Pimpinella anisum and Coriandrum sativum (PC) essential oils (0.75:0.25) into chitosan nanoemulsion (Nm-PC) with effective inhibition against fungal proliferation, aflatoxin B₁ (AFB₁) secretion, and lipid peroxidation in stored rice. Physico-chemical characterization of Nm-PC by SEM, FTIR, and XRD confirmed successful enco ...
DOI:
10.1016/j.pestbp.2022.105066

93. Co-gasification characteristics of coke blended with hydro-char and pyro-char from bamboo

Author:
Minmin Sun; Jianliang Zhang; Kejiang Li; Mansoor Barati; Zhibin Liu
Source:
Energy 2022 v.241 pp. 122890
ISSN:
0360-5442
Subject:
activation energy; bamboos; biochar; biomass; carbon; carbon footprint; crystal structure; energy; gasification; hot water treatment; hydrothermal carbonization; pyrolysis
Abstract:
... The renewable and carbon-neutral biomass is gaining a lot of interest in ironmaking as a substitute to metallurgical coke. The present study looked at partial replacement of coke with biochar obtained from hydrothermal carbonization (HTC) and pyrolysis of bamboo. Pyro-char has a higher carbon crystallinity, lower volatiles and better pore characteristics, while HTC is ideal for the removal of ash ...
DOI:
10.1016/j.energy.2021.122890

94. Co-pyrolysis of coke bottle wastes with cellulose, lignin and sawdust: Impacts of the mixed feedstock on char properties

Author:
Chao Li; Yifan Sun; Zijun Yi; Lijun Zhang; Shu Zhang; Xun Hu
Source:
Renewable energy 2022 v.181 pp. 1126-1139
ISSN:
0960-1481
Subject:
biomass; cellulose; crystal structure; feedstocks; lignin; oils; oxygen; pyrolysis; renewable energy sources; sawdust; temperature; thermal stability
Abstract:
... Co-pyrolysis of coke bottle (CB) with sawdust/cellulose/lignin was conducted at 700 °C in this study, aiming to understand the potential influence of interactions of the volatiles of the varied origins on properties of the char. The results indicated that the interaction of volatiles from CB with that from biomass enhanced cross-polymerization of the volatiles, decreasing the formation of gases wh ...
DOI:
10.1016/j.renene.2021.09.103

95. Colour, composition, digestibility, functionality and pasting properties of diverse kidney beans (Phaseolus vulgaris) flours

Author:
Khetan Shevkani; Ravneet Kaur; Narpinder Singh; Dinhle P. Hlanze
Source:
Current research in food science 2022 v.5 pp. 619-628
ISSN:
2665-9271
Subject:
Phaseolus vulgaris; absorption; ash content; color; crystal structure; digestible carbohydrates; dry matter digestibility; emulsifying; flour; foams; kidney beans; kidneys; microstructure; principal component analysis; protein composition; research; resistant starch; starch granules; temperature; water binding capacity
Abstract:
... The present work evaluated nine diverse kidney bean accessions for colour, composition, digestibility, protein profile, starch crystallinity, techno-functional properties, pasting properties and microstructure with the objective of identifying key attributes affecting their digestibility and functionality. The accessions exhibited dry matter digestibility, resistant starch (RS) content, water abso ...
DOI:
10.1016/j.crfs.2022.03.006

96. Comparative Evaluation of Biomedical Applications of Zinc Nanoparticles Synthesized by Using Withania somnifera Plant Extracts

Author:
Bushra Hafeez Kiani; Ihsan-ul- Haq; Aiyeshah Alhodaib; Samra Basheer; Humaira Fatima; Iffat Naz; Tofeeq Ur-Rehman
Source:
Plants 2022 v.11 no.12 pp. -
ISSN:
2223-7747
Subject:
Bacillus subtilis; Escherichia coli; Staphylococcus aureus; Withania somnifera; alkaloids; antibacterial properties; antifungal properties; crystal structure; cytotoxicity; drugs; ethyl acetate; flavonoids; health services; hexane; leaves; methanol; protein kinases; ultraviolet-visible spectroscopy; zinc
Abstract:
... Green synthesis of metal nanoparticles is of great importance in the modern health care system. In this study, zinc nanoparticles (ZnONPs) were synthesized using leaf and root extracts of Withania somnifera using four different solvents. ZnONPs were characterized by UV-vis spectrophotometer with a range between 350–400 nm. Scanning electron microscope revealed spherical morphology with an overall ...
DOI:
10.3390/plants11121525

97. Comparative evaluation of cellulose nanocrystals from bagasse and coir agro-wastes for reinforcing PVA-based composites

Author:
Krishnavani Pavalaydon; Hareenanden Ramasawmy; Dinesh Surroop
Source:
Environment, development and sustainability 2022 v.24 no.8 pp. 9963-9984
ISSN:
1387-585X
Subject:
Fourier transform infrared spectroscopy; acid hydrolysis; agricultural wastes; alkali treatment; biocomposites; biomass; cellulose; climate change; coir; crystal structure; environment; experimental design; mercerization; nanocomposites; nanocrystals; particle size; polyvinyl alcohol; solvents; sugarcane bagasse; tensile strength
Abstract:
... In order to increase resilience of planters against climate change and bring additional economic benefits, agro-wastes can be exploited for extracting nanocellulose to produce eco-friendly composites. This paper focused on extracting nanocellulose from sugarcane bagasse and coir (cocos nucifera) using chemical methods including mercerisation, bleaching and acid hydrolysis. Taguchi Design of Experi ...
DOI:
10.1007/s10668-021-01852-9

98. Comparing impacts of dielectric barrier discharge plasma and electron beam irradiation processing on characteristics of Tartary buckwheat whole flour

Author:
Yuefeng Huang; Huiqing Wang; Qiuyan Liu; Jiyu Zhou; Shanshan Gao; Jiangtao Yu; Xiaoning Zhang; Min Wang
Source:
Innovative food science & emerging technologies 2022 v.77 pp. 102986
ISSN:
1466-8564
Subject:
antioxidant activity; buckwheat; crystal structure; flour; food industry; freeze-thaw cycles; functional foods; irradiation; oils; temperature; water uptake
Abstract:
... Dielectric barrier discharge (DBD) plasma, lower and higher dose electron beam irradiation (EBI) are used widely in food processing. In this research, impacts of DBD plasma and EBI processing on characteristics of Tartary buckwheat whole flour were investigated in the range of parameters used most often in food industry. Cross section, small granule and reaggregation of fragments appeared after pr ...
DOI:
10.1016/j.ifset.2022.102986

99. Comparison of physicochemical properties and digestibility of sweet potato starch after two modifications of microwave alone and microwave-assisted L-malic acid

Author:
Wei Wang; Aijun Hu; Jing Li; Guangxin Liu; Mengting Wang; Jie Zheng
Source:
International journal of biological macromolecules 2022 v.210 pp. 614-621
ISSN:
0141-8130
Subject:
absorption; crystal structure; digestibility; enthalpy; gelatinization; ingredients; malic acid; microwave treatment; resistant starch; sweet potato starch
Abstract:
... The effects of microwave alone (MA) and microwave-assisted L-malic acid (MLA) on the physicochemical properties, structural and digestibility of sweet potato starch were investigated. The results showed that the swelling power, lightness (L⁎) and whiteness index (WI), gelatinization enthalpy of starch decreased by MA and MLA treatment. The starch treated by MLA showed a new characteristic absorpti ...
DOI:
10.1016/j.ijbiomac.2022.04.215

100. Compositional dependence of structures and hydrogen evolution reaction activity of platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles

Author:
Yuto Maruta; Kohei Kusada; Dongshuang Wu; Tomokazu Yamamoto; Takaaki Toriyama; Syo Matsumura; Okkyun Seo; Satoshi Yasuno; Shogo Kawaguchi; Osami Sakata; Yoshiki Kubota; Hiroshi Kitagawa
Source:
Chemical communications 2022 v.58 no.44 pp. 6421-6424
ISSN:
1364-548X
Subject:
alloy nanoparticles; catalytic activity; chemical communication; crystal structure; hydrogen production
Abstract:
... Platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles were synthesised with compositions slightly away from equimolar, and their crystal and electronic structures were investigated. Their lattice constant changed linearly with composition, while the d-band centre changed nonlinearly. Their catalytic activities for the hydrogen evolution reaction were not correlated with their d-band centre. ...
DOI:
10.1039/d2cc01866g