Article
Materials Science, Paper & Wood
Martin Chewe Sichinga, Timothy Kline, M. A. Whitehead, Theo G. M. van de Ven
Summary: The development of an environmentally sensitive and cost-effective method for producing multi-functionalized cellulose fibers has led to the synthesis of imine carboxymethyl dialdehyde modified cellulose fibers (ICDAMF). This approach allows for the integration of desirable functional groups, such as carboxyl groups for gel formation and aldehyde groups for covalent adsorption of diamine dyes. The ICDAMF has potential use in textiles, where it can prevent the leaching of dyes and reduce environmental pollution.
Article
Polymer Science
Claudiu-Augustin Ghiorghita, Maria Marinela Lazar, Luminita Ghimici, Maria Valentina Dinu
Summary: This study aimed to explore the use of self-assembled hydrogels (comprised of chitosan and carboxymethylcellulose or dialdehyde-crosslinked carboxymethylcellulose) for the removal of complex fungicides. The results showed that the removal efficiency of chitosan/carboxymethylcellulose hydrogels increased significantly with increasing sorbent doses, and hydrogels prepared with dialdehyde-crosslinked carboxymethylcellulose had higher removal efficiencies at initial fungicide concentrations of 300 mg/L or 400 mg/L.
Article
Biochemistry & Molecular Biology
Xiaoyue Yu, Chao Weng, Haiping Zhang, Zibo Qin, Yiliang Miao, Heng Wang, Shanbai Xiong, Jianhua Rong, Yang Hu
Summary: This study investigates the cross-linking behavior of dialdehyde carboxymethyl cellulose (DCMC) with collagen and its effects on the structure and physicochemical properties of collagen fibril hydrogel (CH). The results demonstrate that DCMC with a CHO content of 79% significantly improves the properties of CH by forming sufficient Schiff-base bonds with collagen fibrils.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Biochemistry & Molecular Biology
Yujiao Yan, Shui Guan, Shuping Wang, Jianqiang Xu, Changkai Sun
Summary: The novel PCA-g-CMCS/OSA hydrogel developed in this study demonstrates superior antioxidant activity and potential in cell culture and biocompatibility. The hydrogel shows protective effects against oxidative damage and excellent swelling and biodegradability properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Food Science & Technology
Jinyu Ouyang, Zhenbiao Li, Jincheng Miao, Yongtao Wang, Langrong Hu, Xiaojuan Wang
Summary: Carboxymethyl chitosan dialdehyde starch Schiff base (CMCDAS) and its metal complexes were synthesized from corn starch, sodium periodate, carboxymethyl chitosan, and metal ions (copper, zinc, nickel, silver). The synthesized compounds were characterized using various techniques including FT-IR, SEM, TGA, EDS, and XRD. CMCDAS showed antibacterial activity against E. coli and S. aureus, with the best MIC values of 30 mg mL(-1) for both bacteria. The metal complexes exhibited lower MIC values against S. aureus (7.50, 30, 30, and 1.88 mg mL(-1) for copper, nickel, silver, and zinc, respectively) and E. coli (7.50, 15, 15, and 0.94 mg mL(-1) for copper, nickel, silver, and zinc, respectively).
Article
Materials Science, Paper & Wood
Peng Du, Yongjian Xu, Yun Shi, Qinghua Xu, Shasha Li, Minlan Gao
Summary: This study prepared antibacterial materials by loading silver nanoparticles on dialdehyde cellulose using an in-situ synthesis method. The silver nanoparticles were observed to be uniformly distributed on the cellulose surface without obvious aggregation. The antibacterial properties of the materials showed significant inhibition zones against both Gram-negative and Gram-positive bacteria.
Article
Food Science & Technology
Yixi Li, Yulong Qiu, Hongman Hou, Gongliang Zhang, Hongshun Hao, Jingran Bi
Summary: This paper reports on the synthesis of amino-carboxymethyl chitosan (ACC) and dialdehyde starch (DAS) through amino carboxymethylation and oxidation reactions, respectively, and their use in the preparation of ACC/DAS hydrogels. The hydrogels exhibit good loading capacity and antibacterial properties. These results suggest that ACC/DAS hydrogel has potential in food preservation.
Article
Chemistry, Physical
Martin Chewe Sichinga, Roya Koshani, Theo G. M. van de Ven
Summary: Chemically engineered dialdehyde cellulose (DAC) demonstrates strong functionality for Schiff base dye conjugation, with high adsorption capacity and rates compared to cellulose fibers. DAC fibers outperform cellulose fibers in terms of dye adsorption and removal efficiency, making them ideal for dye recovery or water purification processes.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Applied
Alzbeta Dubravova, Monika Muchova, David Skoda, Lenka Lovecka, Lucie Simonikova, Ivo Kuritka, Jan Vicha, Lukas Munster
Summary: In this study, a two-stage approach for preparing composites with covalently anchored AuNPs was proposed. Firstly, 5 nm AuNPs with high catalytic activity for the reduction of 4-nitrophenol were synthesized and stabilized using fully oxidized and solubilized 2,3-dialdehyde cellulose (DAC). Then, the prepared nanoparticles were tethered to chitosan nanofibers using the carbonyl groups in the nanoparticle shell through an affinity anchoring process. The composite showed improved stability over a wide pH range and demonstrated high catalytic efficacy, fast conversion rates, and direct reusability.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
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
Summary: In this study, an expandable hemostatic sponge was developed by modifying CMCS with cellulose nanofibrils (CNFs) through the CO-NH cross-linking method. The results demonstrated that the sponge exhibited excellent hemostatic ability and blood adsorption capacity, and showed significant advantages in treating various hemorrhage models.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Applied
Guozhu Chang, Qifeng Dang, Chengsheng Liu, Xiaoyu Wang, Hao Song, Hong Gao, Hantian Sun, Bonian Zhang, Dongsu Cha
Summary: A new dual drug delivery system CMCSH was designed to promote diabetic wound healing effectively. This system improved drug availability, promoted cell proliferation, and reduced inflammation.
CARBOHYDRATE POLYMERS
(2022)
Article
Polymer Science
Anshan Huang, Yehong Chen, Chaojun Wu
Summary: This study successfully designed a natural nanocellulose self-healing hydrogel that can quickly self-heal and protect the wound from external damage.
Article
Biochemistry & Molecular Biology
Huishuang Yin, Peiqin Song, Xingyu Chen, Qiuyan Huang, Huihua Huang
Summary: In this research, a composite self-healing hydrogel with pH sensitivity for drug delivery was prepared using cellulose and chitosan from hericium erinaceus residues and pineapple peel. The hydrogel showed suitable gel time, good absorbent ability, self-healing characteristic, and controlled release of rutin.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Biochemistry & Molecular Biology
Cem Bayram
Summary: The gelation kinetics between glycerol multi-aldehyde (GMA) and carboxymethyl chitosan (CMCS) were investigated in this study, and the self-healing ability of the hydrogels was evaluated. The results showed that hydrogels with 3-4% CMCS and 0.5-1% GMA concentrations exhibited the highest self-healing capacity. Moreover, the hydrogels showed no acute cytotoxicity on mammalian cells, indicating their potential use in tissue engineering applications for soft tissues.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Multidisciplinary
Hussein Abou-Yousef, Sawsan Dacrory, Mohamed Hasanin, Essam Saber, Samir Kamel
Summary: The present study successfully prepared a cellulose-based biodegradable hydrogel, and investigated its potential control of drug release as well as interactions with chitosan and streptomycin. The findings showed that chitosan/DAC hydrogels had minimal cytotoxicity towards normal skin fibroblast, and the DAC ratio played a key role in the release process. Further studies revealed potential interactions between chitosan, DAC, and streptomycin with specific binding energies and bond lengths.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
