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1. Bioinspired construction of magnetic nano stirring rods with radially aligned dual mesopores and intrinsic rapid adsorption of palladium

Author:
Fan Wu; Hao Li; Yang Pan; Yonghui Sun; Jianming Pan
Source:
Journal of hazardous materials 2023 v.441 pp. 129917
ISSN:
0304-3894
Subject:
adsorption; aminoquinolines; capacitors; chelation; electronic wastes; ion exchange; leachates; magnetic fields; palladium; porous media
Abstract:
... Quick and precise recovery of palladium (Pd) from electronic waste remains a serious task, owing to the strong acid and complexity of chemical compounds in leachate. Here, bioinspired construction of magnetic nano stirring rod with radially aligned dual mesopores and abundant 8-aminoquinoline (MNSR-DM-AQ) is proposed for selective and rapid extraction of Pd(II) from highly acidic sample solutions. ...
DOI:
10.1016/j.jhazmat.2022.129917

2. Identification of high iron–chelating peptides with unusual antioxidant effect from sea cucumbers and the possible binding mode

Author:
Chaozhong Fan; Xiaofan Ge; Junyu Hao; Tao Wu; Rui Liu; Wenjie Sui; Jieting Geng; Min Zhang
Source:
Food chemistry 2023 v.399 pp. 133912
ISSN:
0308-8146
Subject:
amino acid composition; antioxidant activity; chelation; food chemistry; hydrolysates; iron deficiency anemia; molecular weight; pH; particle size; peptides; proteinases; seafoods
Abstract:
... Iron deficiency anemia (IDA) is a common nutritional disease affecting 2 billion people. To develop a new iron-fortified food, we designed a novel type of iron-chelating peptide [Sea cucumbers peptides (SCP)–Fe] from sea cucumbers. SCP can chelate ferrous ions. The neutral protease hydrolysate have the highest iron chelating activity (117.17 ± 2.62 mg/g). Single factors including pH, material rati ...
DOI:
10.1016/j.foodchem.2022.133912

3. Immunochromatographic Assay based on Sc-TCPP 3D MOF for the rapid detection of imidacloprid in food samples

Author:
Ying Wang; Meng Zhang; Tong Bu; Feier Bai; Shuang Zhao; Yuanyuan Cao; Kunyi He; Haiyu Wu; Jia Xi; Li Wang
Source:
Food chemistry 2023 v.401 pp. 134131
ISSN:
0308-8146
Subject:
biocompatibility; carrots; chelation; coordination polymers; corn; credit; detection limit; food chemistry; imidacloprid; immunoaffinity chromatography; ligands; millets; nanomaterials; porphyrins; rapid methods
Abstract:
... In this work, a highly sensitive immunochromatographic test strip (ITS) based on Scandium-Tetrakis (4-carboxyphenyl) porphyrin (TCPP) metal–organic framework nanocubes (ScTMNs) was developed for ultrasensitive and facile visual determination of imidacloprid (IDP). TCPP as the porphyrin-based planar ligand and Sc³⁺ as the metal center were applied to form the ScTMNs via coordination chelation. Givi ...
DOI:
10.1016/j.foodchem.2022.134131

4. Removal of lead ions from wastewater using magnesium sulfide nanoparticles caged alginate microbeads

Author:
Mehdi Esmaeili Bidhendi; Ehsan Parandi; Masoumeh Mahmoudi Meymand; Hassan Sereshti; Hamid Rashidi Nodeh; Sang-Woo Joo; Yasser Vasseghian; Nadia Mahmoudi Khatir; Shahabaldin Rezania
Source:
Environmental research 2023 v.216 pp. 114416
ISSN:
0013-9351
Subject:
adsorbents; adsorption; chelation; hydrogels; ion exchange; lead; magnesium; microbeads; models; nanoparticles; pH; research; sodium alginate; sorption isotherms; sulfides; temperature; wastewater
Abstract:
... In this study, an adsorbent made of alginate (Alg) caged magnesium sulfide nanoparticles (MgS) microbeads were used to treat lead ions (Pb²⁺ ions). The MgS nanoparticles were synthesized at low temperatures, and Alg@MgS hydrogel microbeads were made by the ion exchange process of the composite materials. The newly fabricated Alg@MgS was characterized by XRD, SEM, and FT-IR. The adsorption conditio ...
DOI:
10.1016/j.envres.2022.114416

5. Self-cleaning and regenerable nano zero-valent iron modified PCN-224 heterojunction for photo-enhanced radioactive waste reduction

Author:
Jing Zhao; Chaoyi Lyu; Rui Zhang; Yao Han; Yundi Wu; Xilong Wu
Source:
Journal of hazardous materials 2023 v.442 pp. 130018
ISSN:
0304-3894
Subject:
adsorption; bioaccumulation; chelation; chemical reduction; coordination polymers; electron transfer; iron; liquids; nanomaterials; nuclear power; pH; photocatalysis; radioactive waste; reactive oxygen species; surface area; toxicity; uranium; waste reduction; wastewater; zirconium
Abstract:
... The expansion of large-scale nuclear power causes a substantial volume of radioactive wastewater containing uranium to be released into the environment. Because of uranium's toxicity and bioaccumulation, it is critical to develop the efficient and sustainable materials for selective removal of uranium (VI). Herein, a regenerable anti-biofouling nano zero-valent iron doped porphyrinic zirconium met ...
DOI:
10.1016/j.jhazmat.2022.130018

6. A critical review on pineapple (Ananas comosus) wastes for water treatment, challenges and future prospects towards circular economy

Author:
Thuan Van Tran; Duyen Thi Cam Nguyen; Thuy Thi Thanh Nguyen; Dai Hai Nguyen; Mansur Alhassan; A.A. Jalil; Walid Nabgan; Taeyoon Lee
Source:
Science of the total environment 2023 v.856 pp. 158817
ISSN:
0048-9697
Subject:
Ananas comosus; adsorbents; adsorption; chelation; circular economy; electrostatic interactions; environment; fruits; ion exchange; kinetics; pineapples; porosity; sorption isotherms; water treatment
Abstract:
... Each year, nearly 30 million tons of pineapple fruit are harvested for food and drinking industries, along with the release of a huge amount of pineapple wastes. Without the proper treatment, pineapple wastes can cause adverse impacts on the environment, calling for new technologies to convert them into valuable products. Here, we review the production and application of adsorbents derived from pi ...
DOI:
10.1016/j.scitotenv.2022.158817

7. 1,2-Diamines as the Amine Sources in Amidation and Rhodium-Catalyzed Asymmetric Reductive Amination Cascade Reactions

Author:
Rongrong Xie; Cungang Liu; Renwei Lin; Runchen Zhang; Haizhou Huang; Mingxin Chang
Source:
Organic letters 2022 v.24 no.31 pp. 5646-5650
ISSN:
1523-7052
Subject:
amination; chelation; diamines; ligands; rhodium
Abstract:
... The sturdy chelation of 1,2-diamines and transition-metals would retard or even interrupt the routine catalytic cycles. In the amidation and asymmetric reductive amination (ARA) cascade reactions of diamines and ketoesters, we deployed sets of additives to ensure a smooth transformation catalyzed by the complexes of rhodium and versatile and highly modular phosphoramidite-phosphine ligands. The tu ...
DOI:
10.1021/acs.orglett.2c01728

8. 3D ZnO modified biochar-based hydrogels for removing U(VI) in aqueous solution

Author:
Yu Guo; Xiaoyang Liu; Shuibo Xie; Haiyan Liu; Chenxu Wang; Lingzhi Wang
Source:
Colloids and surfaces 2022 v.642 pp. 128606
ISSN:
0927-7757
Subject:
adsorption; aqueous solutions; biochar; chelation; hydrogels; ion exchange; pH; sorption isotherms; thermal stability; uranium
Abstract:
... A novel three dimensional ZnO modified biochar-based hydrogel (ZBCG) was fabricated and employed for removing U(VI) in aqueous solution. The ZBCG hydrogel, the successful loading of ZnO modified biochar (ZBC) confirmed by SEM and FTIR, has showed a well mechanical characteristics, thermal stability, anti-swelling property and adsorption performance for U(VI) than pure hydrogels (BG). At T = 40 ℃, ...
DOI:
10.1016/j.colsurfa.2022.128606

9. ACE inhibitory activities of two peptides derived from Volutharpa ampullacea perryi hydrolysate and their protective effects on H2O2 induced HUVECs injury

Author:
Chen-Xin Wang; Cheng-Cheng Song; Xin-Tong Liu; Bian-Wen Qiao; Shuang Song; Ying-Huan Fu
Source:
Food research international 2022 v.157 pp. 111402
ISSN:
0963-9969
Subject:
antihypertensive effect; chelation; dose response; endothelins; food research; functional foods; heme oxygenase (biliverdin-producing); humans; hydrogen; hydrogen peroxide; hydrolysates; malondialdehyde; molecular dynamics; peptidyl-dipeptidase A
Abstract:
... The purpose of this study is to explore the effects of IVTNWDDMEK and VGPAGPRG, two angiotensin I-converting enzyme (ACE) inhibitory peptides purified from Volutharpa ampullacea perryi, on ACE’s two domains and on nitric oxide (NO), endothelin-1(ET-1) production in human vascular endothelial cells (HUVECs). In addition, we sought to investigate the effects of these two peptides on HUVECs injury in ...
DOI:
10.1016/j.foodres.2022.111402

10. Accumulation and partitioning of toxic trace metal(loid)s in phytoliths of wheat grown in a multi-element contaminated soil

Author:
Linan Liu; Zhaoliang Song; Qiang Li; Rob M. Ellam; Jingchun Tang; Yangyang Wang; Binoy Sarkar; Hailong Wang
Source:
Environmental pollution 2022 v.294 pp. 118645
ISSN:
0269-7491
Subject:
arsenic; cadmium; chelation; copper; coprecipitation; crop quality; cropland; homeostasis; human health; lead; phytoliths; pollution; silica; silicon; toxicity; wheat; zinc
Abstract:
... Cropland contamination by toxic trace metal (loid)s (TTMs) has attracted increasing attention due to the serious consequential threat to crop quality and human health. Mitigation of plant TTM stress by silica amendment has been proposed recently. However, the relationship between the siliceous structure of phytoliths and TTMs in plants, and the environmental implications of phytolith-occluded trac ...
DOI:
10.1016/j.envpol.2021.118645

11. Adsorption of Ag/Au nanoparticles by ordered macro-microporous ZIF-67, and their synergistic catalysis application

Author:
Yaru Shao; Mengke Tian; Zihan Zhen; Jianan Cui; Mingshi Xiao; Bo Qi; Ting Wang; Xiaohong Hou
Source:
Journal of cleaner production 2022 v.346 pp. 131032
ISSN:
0959-6526
Subject:
adsorbents; adsorption; catalysts; catalytic activity; chelation; composite materials; human health; hydrogen bonding; ion exchange; macropores; micropores; nanogold; nanosilver; nitrogen; oxygen; p-nitrophenol; wastewater
Abstract:
... Silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) are universally used in diverse fields, but the use and treatment of various commodities will adversely affect the human health. Therefore, the recovery and immobilization of AgNPs and AuNPs from wastewater has important economic and social benefits. The ordered macro-microporous ZIF-67 single crystal (SOM-ZIF-67) was prepared by double s ...
DOI:
10.1016/j.jclepro.2022.131032

12. Adsorption of Pb(II) from water by treatment with an O-hydroxyphenyl thiourea-modified chitosan

Author:
Xiya Yang; Lingyuan Chen; Dong Ren; Shixing Wang; Zhaogang Ren
Source:
International journal of biological macromolecules 2022 v.220 pp. 280-290
ISSN:
0141-8130
Subject:
adsorbents; adsorption; chelation; chitosan; endothermy; ion exchange; lead; models; nitrogen; oxygen; pH; sulfur; temperature; thermodynamics; zeta potential
Abstract:
... An O-hydroxyphenyl thiourea-modified chitosan (OTCS) with excellent Pb(II) adsorption performance and selectivity was prepared as an adsorbent. The structure and morphology of the adsorbent were systematically investigated by SEM, BET, FTIR, EDX, zeta-potential measurements, XPS and XRD. The impacts of the initial Pb(II) concentration, reaction time, temperature, pH value, and coexisting ions were ...
DOI:
10.1016/j.ijbiomac.2022.08.090

13. Adsorption of copper (II) and cadmium (II) ions by in situ doped nano-calcium carbonate high-intensity chitin hydrogels

Author:
Detian Dou; Donglai Wei; Xin Guan; Zhenjiang Liang; Lihong Lan; Xiongdiao Lan; Pengru Liu; Huiqun Mo; Ping Lan
Source:
Journal of hazardous materials 2022 v.423 pp. 127137
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; cadmium; calcium carbonate; chelation; chitin; composite materials; copper; hydrogels; macropores; models; nitrogen; oxygen; pH; sorption isotherms; temperature
Abstract:
... Most natural polymers exhibit limited functional groups, which is not favourable for the adsorption of various ions and their utilisation. To overcome this drawback, a novel in-situ-doped nano-calcium carbonate (CaCO₃) chitin hydrogel was synthesised as an efficient adsorbent for Cu (II) and Cd (II) ions. Scanning electron microscopy and Brunauer–Emmett–Teller results revealed that the synthesised ...
DOI:
10.1016/j.jhazmat.2021.127137

14. Amine-bilayer-functionalized cellulose-chitosan composite hydrogel for the efficient uptake of hazardous metal cations and catalysis in polluted water

Author:
Chirag Batukbhai Godiya; Chetan Revadekar; Jinsoo Kim; Bum Jun Park
Source:
Journal of hazardous materials 2022 v.436 pp. 129112
ISSN:
0304-3894
Subject:
X-radiation; adsorbents; adsorption; aminophenols; biocatalysts; catalytic activity; cellulose; chelation; copper; copper nanoparticles; desorption; heavy metals; hydrogels; nickel; p-nitrophenol; polyethyleneimine; remediation; water pollution; zinc
Abstract:
... Herein, we represent a novel ecofriendly bilayer-amine group incorporated microcrystalline cellulose (MCC)/chitosan (CS) hydrogel, fabricated via integrating polydopamine (PDA) and polyethyleneimine (PEI) for reliable and effective extraction of copper (Cu²⁺), zinc (Zn²⁺), and nickel (Ni²⁺) ions from effluents. Owing to abundant adsorptive sites, the MCC-PDA-PEI/CS-PDA-PEI hydrogel showed excellen ...
DOI:
10.1016/j.jhazmat.2022.129112

15. Anchoring of copper sulfide on cellulose fibers with polydopamine for efficient and recyclable photocatalytic degradation of organic dyes

Author:
Tongye Zhang; Yun Xiang; Yinlong Su; Yi Zhang; Xiujie Huang; Xueren Qian
Source:
Industrial crops and products 2022 v.187 pp. 115357
ISSN:
0926-6690
Subject:
catechol; cellulose; chelation; irradiation; paper; photocatalysis; rhodamines; sulfides
Abstract:
... Due to its narrow band gap, Copper sulfide (CuS) exhibits great potential in photocatalytic degradation of organic dyes. However, there are still some drawbacks in the CuS photocatalytic system, such as easy aggregation, poor reusability, high recombination rate of photogenerated electron-hole pair, and photocorrosion damage. In this study, CuS was anchored onto cellulose fibers (CF) with the help ...
DOI:
10.1016/j.indcrop.2022.115357

16. Antioxidant Activity of Fucoidan Modified with Gallic Acid Using the Redox Method

Author:
Keylla Dayanne Coelho Marinho de Melo; Lucas dos Santos Lisboa; Moacir Fernandes Queiroz; Weslley Souza Paiva; Ana Carolina Luchiari; Rafael Barros Gomes Camara; Leandro Silva Costa; Hugo Alexandre Oliveira Rocha
Source:
Marine drugs 2022 v.20 no.8 pp. -
ISSN:
1660-3397
Subject:
Danio rerio; adjuvants; antioxidant activity; caspase-3; caspase-9; cell viability; chelation; fucoidan; gallic acid; osteoblasts; oxidative stress; superoxide anion
Abstract:
... Antioxidant compounds decrease the amount of intracellular reactive oxygen species (ROS) and, consequently, reduce the deleterious effects of ROS in osteoblasts. Here, we modified a 21 kDa fucoidan (FucA) with gallic acid (GA) using the redox method, to potentiate its antioxidant/protective capacity on pre-osteoblast-like cells (MC3T3) against oxidative stress. The 20 kDa FucA-GA contains 37 ± 3.0 ...
DOI:
10.3390/md20080490

17. Antioxidant and antityrosinase activity of extractable condensed tannins from durian shells with antibrowning effect in fresh-cut asparagus lettuce model

Author:
Dandan Liang; Lulu Liu; Zeya Qin; Guanghui Li; Baomiao Ding; Hui Chen; Zhanbiao Li; Shudong Wei; Zhanchang Wang
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.162 pp. 113423
ISSN:
0023-6438
Subject:
Lactuca sativa var. angustana; antioxidant activity; antioxidants; catechol oxidase; chelation; durians; fluorescence; food industry; models; procyanidins
Abstract:
... Inhibiting tyrosinase activity is considered as an effective strategy to prevent the enzymatic browning of fruits and vegetables. In this study, the extractable condensed tannins (ECTs) isolated from durian shells usually disposed as agricultural wastes were found to strongly inhibit on both monophenolase and diphenolase of tyrosinase, and the inhibition of diphenolase by ECTs was proved to be rev ...
DOI:
10.1016/j.lwt.2022.113423

18. Antioxidant capacity of Myrciaria cauliflora seed extracts by spectrophotometric, biochemical, and electrochemical methods and its protective effect against oxidative damage in erythrocytes

Author:
Ana Carolina Mendes Hacke; Taynara Pacheco Valério; Mateus Flórido Cubo; Dhésmon Lima; Christiana Andrade Pessôa; José Carlos Rebuglio Vellosa; Romaiana Picada Pereira
Source:
Journal of food biochemistry 2022 v.46 no.9 pp. e14222
ISSN:
0145-8884
Subject:
Plinia cauliflora; antioxidant activity; byproducts; chelation; electrochemistry; erythrocytes; food additives; fruits; humans; lipid peroxidation; oxidative stress; phospholipids; protective effect; reactive oxygen species; wastes
Abstract:
... This study aimed to investigate the antioxidant activity of extracts obtained from jabuticaba (Myrciaria cauliflora) seeds. Ethanolic (ETJS), methanolic (MEJS), aqueous (AQJS), and propanone (PRJS) extracts was assessed by measuring spectrophotometrically their ability to scavenge DPPH·, ABTS·⁺, HOCl, and O₂·⁻ radicals. Electrochemical methods were employed, and the obtained data presented a good ...
DOI:
10.1111/jfbc.14222

19. Antioxidant peptides derived from potato, seaweed, microbial and spinach proteins: Oxidative stability of 5% fish oil-in-water emulsions

Author:
Betül Yesiltas; Pedro J. García-Moreno; Simon Gregersen; Tobias H. Olsen; Nykola C. Jones; Søren V. Hoffmann; Paolo Marcatili; Michael T. Overgaard; Egon B. Hansen; Charlotte Jacobsen
Source:
Food chemistry 2022 v.385 pp. 132699
ISSN:
0308-8146
Subject:
aqueous solutions; bioinformatics; chelation; circular dichroism spectroscopy; emulsions; fish; food chemistry; hydroperoxides; isoelectric point; lipid peroxidation; macroalgae; oxidative stability; peptides; polysorbates; potatoes; prediction; proteomics; spinach
Abstract:
... In this study, we used a combination of quantitative proteomics and bioinformatic prediction for identifying novel antioxidant peptides. Thirty-five peptides from potato, seaweed, microbial, and spinach proteins were investigated. Based on high DPPH radical scavenging activity (IC₅₀ ≤ 16 mg/mL), metal chelation activity, isoelectric point, and high relative abundance in the parent protein sources, ...
DOI:
10.1016/j.foodchem.2022.132699

20. Antioxidants of Fruit Extracts as Antimicrobial Agents against Pathogenic Bacteria

Author:
Sureeporn Suriyaprom; Pascale Mosoni; Sabine Leroy; Thida Kaewkod; Mickaël Desvaux; Yingmanee Tragoolpua
Source:
Antioxidants 2022 v.11 no.3 pp. -
ISSN:
2076-3921
Subject:
Citrus; antioxidant activity; antioxidants; bacterial growth; cell communication; chelation; fruits; genes; human nutrition; phytochemicals; polyphenols; terpenoids; virulence
Abstract:
... Fruit is an essential part of the human diet and is of great interest because of its richness in phytochemicals. Various fruit extracts from citrus, berries and pomegranates have been shown to possess a broad spectrum of medicinal properties. Fruit phytochemicals are of considerable interest because of their antioxidant properties involving different mechanisms of action, which can act against dif ...
DOI:
10.3390/antiox11030602