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1. Influence of hemicellulose content and cellulose crystal change on cellulose nanofibers properties

Author:
Matheus Cordazzo Dias; Uasmim Lira Zidanes; Caio Cesar Nemer Martins; Ana Lázara Matos de Oliveira; Renato Augusto Pereira Damásio; Jaime Vilela de Resende; Eduardo Valério de Barros Vilas Boas; Mohamed Naceur Belgacem; Gustavo Henrique Denzin Tonoli; Saulo Rocha Ferreira
Source:
International journal of biological macromolecules 2022 v.213 pp. 780-790
ISSN:
0141-8130
Subject:
cellulose; cellulose nanofibers,   etc   ; crystal structure; energy; hemicellulose;     Show all 5 Subjects
Abstract:
... This study aimed to evaluate the properties of cellulose nanofibers (CNFs) with different hemicellulose contents and cellulose II polymorphs. A link was found between these polysaccharides and the properties of CNFs. A decrease in crystallinity (from 69 to 63%) and changes in the crystalline structure of cellulose subjected to an alkaline environment were observed, promoting the partial conversion ...
DOI:
10.1016/j.ijbiomac.2022.06.012

2. Regulation of orientation birefringence for cellulose acetate film: The role of crystallization and orientation

Author:
Tong Wu; Xueqing Han; Xiaoyu Min; Minfang An; Jingyun Zhao; Wancheng Yu; Liangbin Li
Source:
Carbohydrate polymers 2022 v.296 pp. 119915
ISSN:
0144-8617
Subject:
cellulose; cellulose acetate,   etc   ; crystal structure; crystallization; liquid crystals;     Show all 5 Subjects
Abstract:
... Cellulose acetate (CA) based films are widely used in liquid crystal displays due to their outstanding transparency, and a certain orientation birefringence of CA films is required when they are used as retardation films. The regulation of orientation birefringence is usually from the perspective of stretch-induced orientation, while the effects of crystallization behaviors of CA films remain obsc ...
DOI:
10.1016/j.carbpol.2022.119915

3. Viscoelastic-mapping of cellulose nanofibrils using low-total-force contact resonance force microscopy (LTF-CRFM)

Author:
Kristen M. Hess; Jason P. Killgore; Ashutosh Mittal; Wil V. Srubar III
Source:
Cellulose 2022 v.29 no.10 pp. 5493-5509
ISSN:
0969-0239
Subject:
cellulose; cellulose nanofibers,   etc   ; atomic force microscopy; geometry; viscoelasticity;     Show all 5 Subjects
Abstract:
... Low-total-force contact resonance force microscopy (LTF-CRFM), an atomic force microscopy method, is introduced as a non-destructive means to quantify the local viscoelastic loss tangent ([Formula: see text] of supported cellulose nanofibrils (CNFs). The method limits static and dynamic forces during measurement to minimize substrate and geometry effects and to reduce the potential for stress-indu ...
DOI:
10.1007/s10570-022-04603-9

4. Critical comparison of the properties of cellulose nanofibers produced from softwood and hardwood through enzymatic, chemical and mechanical processes

Author:
Jose Luis Sanchez-Salvador; Cristina Campano; Ana Balea; Quim Tarrés; Marc Delgado-Aguilar; Pere Mutjé; Angeles Blanco; Carlos Negro
Source:
International journal of biological macromolecules 2022 v.205 pp. 220-230
ISSN:
0141-8130
Subject:
cellulose; cellulose nanofibers,   etc   ; biomass; hardwood; lignocellulose; mechanical methods; softwood;     Show all 7 Subjects
Abstract:
... Current knowledge on the properties of different types of cellulose nanofibers (CNFs) is fragmented. Properties variation is very extensive, depending on raw materials, effectiveness of the treatments to extract the cellulose fraction from the lignocellulosic biomass, pretreatments to facilitate cellulose fibrillation and final mechanical process to separate the microfibrils. Literature offers mul ...
DOI:
10.1016/j.ijbiomac.2022.02.074

5. Thermo-chemical transition in cellulose esters and other polymers

Author:
Costas Tsioptsias; Eleni G. Nikolaidou; Xanthi Ntampou; Ioannis Tsivintzelis; Costas Panayiotou
Source:
Thermochimica acta 2022 v.707 pp. 179106
ISSN:
0040-6031
Subject:
cellulose; cellulose acetate,   etc   ; butyrates; chemical degradation; endothermy; esterification; glass;     Show all 7 Subjects
Abstract:
... A peculiar thermochemical phenomenon of coexistence of chemical decomposition and material softening, observed in cellulose acetate butyrate (CAB) and named glass chemical transition is further scrutinized. It is demonstrated that cellulose acetate (CA), also, exhibits a thermo-chemical transition and that mixed esters like CAB, may exhibit more than one thermo-chemical transitions. The DSC intens ...
DOI:
10.1016/j.tca.2021.179106

6. Dynamic crack initiation and growth in cellulose nanopaper

Author:
Chengyun Miao; Haishun Du; Xinyu Zhang; Hareesh V. Tippur
Source:
Cellulose 2022 v.29 no.1 pp. 557-569
ISSN:
0969-0239
Subject:
cellulose; cellulose nanofibers,   etc   ; digital images; energy; filtration; mechanical properties;     Show all 6 Subjects
Abstract:
... Cellulose nanopaper (CNP) made of cellulose nanofibrils has gained extensive attention in recent years for its lightweight and superior mechanical properties alongside sustainable and green attributes. The mechanical characterization studies on CNP at the moment have generally been limited to tension tests. In fact, thus far there has not been any report on crack initiation and growth behavior, es ...
DOI:
10.1007/s10570-021-04310-x

7. Role of cellulose nanofibrils in improving the strength properties of paper: a review

Author:
Thabisile Brightwell Jele; Prabashni Lekha; Bruce Sithole
Source:
Cellulose 2022 v.29 no.1 pp. 55-81
ISSN:
0969-0239
Subject:
cellulose; cellulose nanofibers,   etc   ; biodegradability; paper; pulp and paper industry;     Show all 5 Subjects
Abstract:
... The pursuit for sustainability in the papermaking industry calls for the elimination or reduction of synthetic additives and the exploration of renewable and biodegradable alternatives. Cellulose nanofibrils (CNFs), due to their inherent morphological and biochemical properties, are an excellent alternative to synthetic additives. These properties enable CNFs to improve the mechanical, functional, ...
DOI:
10.1007/s10570-021-04294-8

8. Tendon-inspired hydrogel with segmental change of stiffness modulated by carboxymethylated cellulose nanofibers

Author:
Junsik Choi; Donghan Lee; Jinho Hyun
Source:
Cellulose 2022 v.29 no.4 pp. 2351-2369
ISSN:
0969-0239
Subject:
cellulose; cellulose nanofibers,   etc   ; acrylamides; hydrogels; polymers; pulp; tensile strength;     Show all 7 Subjects
Abstract:
... A tendon has a unique structure of spatially gradient stiffness. In mimicry of the structure, the great connection between each segment is critical for the spatial structuring of composites because mechanical failure mainly occurs at the binding site. It is challenging to mimic the tendon-inspired hydrogel structure with sequential stiffness by 3D printing a composite ink based on cellulose nanofi ...
DOI:
10.1007/s10570-022-04461-5

9. Effect of overlapping cellulose nanofibrils and nanoclay layers on mechanical and barrier properties of spray-coated papers

Author:
Maria Luiza Cafalchio de Oliveira; Seyedmohammad Mirmehdi; Mário Vanoli Scatolino; Mario Guimarães Júnior; Anand Ramesh Sanadi; Renato Augusto Pereira Damasio; Gustavo Henrique Denzin Tonoli
Source:
Cellulose 2022 v.29 no.2 pp. 1097-1113
ISSN:
0969-0239
Subject:
cellulose; cellulose nanofibers,   etc   ; face; hydrophilicity; hydrophobicity; nanoclays; water vapor;     Show all 7 Subjects
Abstract:
... This work evaluates the effect of spray-coating papers using cellulose nanofibrils (CNFs) and nanoclay (NC) on the mechanical and barrier properties for application such as reinforced packaging bags. Sack kraft papers of 60 g m⁻² (C60) were coated with combinations of CNFs and CNFs + NC, varying the number of layers on the internal face (IF) and external face (EF) of the paper. Their properties we ...
DOI:
10.1007/s10570-021-04350-3

10. Improving water vapor barrier of cellulose based food packaging using double layer coatings and cellulose nanofibers

Author:
Mohammed Z. Al-Gharrawi; Jinwu Wang; Douglas W. Bousfield
Source:
Food packaging and shelf life 2022 v.33 pp. 100895
ISSN:
2214-2894
Subject:
cellulose; cellulose nanofibers,   etc   ; oxygen; paper; shelf life; water vapor;     Show all 6 Subjects
Abstract:
... Paper based packaging has the potential to replace many plastic-based systems if the required barrier properties can be obtained. Water borne barrier coatings have the potential to generate good barrier layers, but their performance is often less than expected. Recent work has shown improved performance of these coatings when applied on paper that has a cellulose nanofiber layer. Here, papers with ...
DOI:
10.1016/j.fpsl.2022.100895

11. A rheological study of cationic micro- and nanofibrillated cellulose: quaternization reaction optimization and fibril characteristic effects

Author:
Tilen Kopač; Matjaž Krajnc; Aleš Ručigaj
Source:
Cellulose 2022 v.29 no.3 pp. 1435-1450
ISSN:
0969-0239
Subject:
cellulose; cellulose nanofibers,   etc   ; alcohols; biopolymers; chlorides; sodium hydroxide; viscoelasticity;     Show all 7 Subjects
Abstract:
... Driven by the demand for various cationic biopolymers in recent years, the quaternization of cellulose nanofibers was carefully investigated to have tight control over their final characteristics. The addition of sodium hydroxide (NaOH) to the reaction mixture is crucial as it catalyzes the conversion of alcohol groups of cellulose into more reactive alcoholate groups. On the other hand, excessive ...
DOI:
10.1007/s10570-021-04365-w

12. Efficient Labeling of Nanocellulose for High-Resolution Fluorescence Microscopy Applications

Author:
Mouhanad Babi; Ayodele Fatona; Xiang Li; Christine Cerson; Victoria M. Jarvis; Tiffany Abitbol; Jose M. Moran-Mirabal
Source:
Biomacromolecules 2022 v.23 no.5 pp. 1981-1994
ISSN:
1526-4602
Subject:
cellulose; cellulose fibrils; cellulose nanofibers,   etc   ; cost effectiveness; crystal structure; fluorescein; fluorescence microscopy; nanocomposites; nanocrystals; tissue culture; triazines;     Show all 11 Subjects
Abstract:
... The visualization of naturally derived cellulose nanofibrils (CNFs) and nanocrystals (CNCs) within nanocomposite materials is key to the development of packaging materials, tissue culture scaffolds, and emulsifying agents, among many other applications. In this work, we develop a versatile and efficient two-step approach based on triazine and azide–alkyne click-chemistry to fluorescently label nan ...
DOI:
10.1021/acs.biomac.1c01698

13. Design and synthesis of cellulose nanofiber-derived CoO/Co/C two-dimensional nanosheet toward enhanced and stable lithium storage

Author:
Haochang Chen; Shunzhe Zhang; Shaoping Wu; Kaifeng Wang; Chi Chen; Yujie Chen; Wenshuang Chu; Zhen Chen; Hua Li; Hezhou Liu
Source:
Journal of colloid and interface science 2022 v.625 pp. 915-924
ISSN:
0021-9797
Subject:
cellulose; cellulose nanofibers,   etc   ; anodes; carbon; heat treatment; lithium; nanosheets; synergism;     Show all 8 Subjects
Abstract:
... Nano-sized two-dimensional carbonaceous materials have been widely used as the matrix for alloying-type and conversion-type anode materials for Li-ion batteries (LIBs) to improve structural stability and rate performance. However, relevant synthesis usually requires rigorous conditions and chronic reaction processes. Herein, we have designed a simple solvothermal reaction and heat treatment to pre ...
DOI:
10.1016/j.jcis.2022.06.092

14. Cationic cellulose nanofibers with efficient anionic dye adsorption: adsorption mechanism and application in salt-free dyeing of paper

Author:
Jingyan Liu; Rendang Yang; Yang Wang; Fieguo Hua; Shuhua Tong
Source:
Cellulose 2022 v.29 no.3 pp. 2047-2061
ISSN:
0969-0239
Subject:
cellulose; cellulose nanofibers,   etc   ; adsorption; color; dyeing; dyes; paper; wastewater treatment;     Show all 8 Subjects
Abstract:
... Cationic modification of cellulose fibers is an effective strategy to improve the absorptive capacity of anionic dyes and promote wastewater treatment. In this study, cationic cellulose nanofibers (CCNFs) with different degrees of substitution (DS) were prepared by grafting cellulose fibers with 2, 3-epoxypropyltrimethylammonium chloride (EPTMAC) and homogenizing. The synthesized CCNFs were employ ...
DOI:
10.1007/s10570-021-04406-4

15. On the mechanism for the highly sensitive response of cellulose nanofiber hydrogels to the presence of ionic solutes

Author:
Suvi Arola; Zhennan Kou; Bart J. M. Rooijakkers; Rama Velagapudi; Maria Sammalkorpi; Markus B. Linder
Source:
Cellulose 2022 v.29 no.11 pp. 6109-6121
ISSN:
0969-0239
Subject:
cellulose; cellulose nanofibers,   etc   ; hydrogels; manufacturing; molecular dynamics; rheology; sodium acetate;     Show all 7 Subjects
Abstract:
... Hydrogels formed by cellulose nanofibers (CNFs) find use in a variety of applications. CNF hydrogels generally stiffen and ultimately flocculate with increasing salt concentrations. While charge repulsion explains the behavior of nanocellulose variants that have been stabilized by charged groups, it has been a puzzle why ions have such a pronounced effect also on CNFs with unmodified surfaces. We ...
DOI:
10.1007/s10570-022-04664-w

16. Development of quality evaluation method for cellulose fibrils

Author:
Jung Soo Han; Sang Yun Kim; Yung Bum Seo
Source:
Cellulose 2022 v.29 no.12 pp. 6549-6563
ISSN:
0969-0239
Subject:
cellulose; cellulose fibrils,   etc   ; crystal structure; drainage; nanofibers; paper; polymerization; wood;     Show all 8 Subjects
Abstract:
... Highly fibrillated cellulose, including cellulose micro or nanofibrils (CMFs or CNFs), has been extensively investigated. However, its morphological properties defined as the degree of fibrillation vary over time according to the fiber sources and preparation methods. In this study, a facile method for evaluating the degree of fibrillation was developed using a conventional Canadian standard freen ...
DOI:
10.1007/s10570-022-04674-8

17. Expandable carboxymethyl chitosan/cellulose nanofiber composite sponge for traumatic hemostasis

Author:
Min Zhou; Jiaxing Liao; Guobing Li; Zhijie Yu; Dandan Xie; Huyue Zhou; Fengling Wang; Yukun Ren; Rufu Xu; Yue Dai; Jie Wang; Jingbin Huang; Rong Zhang
Source:
Carbohydrate polymers 2022 v.294 pp. 119805
ISSN:
0144-8617
Subject:
cellulose; cellulose nanofibers,   etc   ; biocompatibility; blood; chitosan; coagulation; crosslinking; hemorrhage; hemostasis;     Show all 9 Subjects
Abstract:
... Uncontrolled hemorrhage poses a severe life-threatening situation. However, traditional hemostats still have various limitations. It is urgent to develop a material with excellent biocompatibility and hemostatic ability. Evidence has shown that carboxymethyl chitosan (CMCS) has hemostatic properties and good compatibility. Herein, we develop an expandable hemostatic sponge by modifying CMCS with c ...
DOI:
10.1016/j.carbpol.2022.119805

18. Microtubule‐associated IQD9 orchestrates cellulose patterning in seed mucilage

Author:
Bo Yang; Gina Stamm; Katharina Bürstenbinder; Cătălin Voiniciuc
Source:
The new phytologist 2022 v.235 no.3 pp. 1096-1110
ISSN:
0028-646X
Subject:
cellulose; cellulose microfibrils; cellulose synthase,   etc   ; Arabidopsis; biosynthesis; cell walls; kinesin; microtubules; mucilages; reverse genetics; seed coat; seed development; transgenes;     Show all 13 Subjects
Abstract:
... Arabidopsis seeds release large capsules of mucilaginous polysaccharides, which are shaped by an intricate network of cellulosic microfibrils. Cellulose synthase complexes are guided by the microtubule cytoskeleton, but it is unclear which proteins mediate this process in the seed coat epidermis. Using reverse genetics, we identified IQ67 DOMAIN 9 (IQD9) and KINESIN LIGHT CHAIN‐RELATED 1 (KLCR1) a ...
DOI:
10.1111/nph.18188

19. Structure of In Vitro-Synthesized Cellulose Fibrils Viewed by Cryo-Electron Tomography and ¹³C Natural-Abundance Dynamic Nuclear Polarization Solid-State NMR

Author:
Fabien Deligey; Mark A. Frank; Sung Hyun Cho; Alex Kirui; Frederic Mentink-Vigier; Matthew T. Swulius; B. Tracy Nixon; Tuo Wang
Source:
Biomacromolecules 2022 v.23 no.6 pp. 2290-2301
ISSN:
1526-4602
Subject:
cellulose; cellulose microfibrils; cellulose synthase,   etc   ; Physcomitrium; biocompatible materials; biopolymers; cell walls; hybrids; isotope labeling; models; renewable energy sources; tomography;     Show all 12 Subjects
Abstract:
... Cellulose, the most abundant biopolymer, is a central source for renewable energy and functionalized materials. In vitro synthesis of cellulose microfibrils (CMFs) has become possible using purified cellulose synthase (CESA) isoforms from Physcomitrium patens and hybrid aspen. The exact nature of these in vitro fibrils remains unknown. Here, we characterize in vitro-synthesized fibers made by CESA ...
DOI:
10.1021/acs.biomac.1c01674

20. Depletion Effects and Stabilization of Pickering Emulsions Prepared from a Dual Nanocellulose System

Author:
Shasha Guo; Long Bai; Jun Li; Ran Bi; Siqi Huan; Orlando J. Rojas
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.28 pp. 9066-9076
ISSN:
2168-0485
Subject:
cellulose; cellulose nanofibers,   etc   ; adsorption; droplets; emulsions; flocculation; foods; gelation; green chemistry;     Show all 9 Subjects
Abstract:
... Nonadsorbing cellulose nanofibrils (CNF) are shown to induce stabilization of dilute oil-in-water Pickering emulsions formed by interfacial adsorption of highly charged TEMPO-oxidized CNF (TOCNF). The correlative interactions that occur upon sequential addition of the two types of nanofibrils (TOCNF and CNF) afford control of the properties of the obtained emulsions. For instance, the emulsions un ...
DOI:
10.1021/acssuschemeng.2c01059