Results 281 to 290 of about 1,732,403 (348)

Application of chitosan and chitosan derivatives as biomaterials

Journal of Industrial and Engineering Chemistry, 2016
Abstract Chitosan is a linear polysaccharide composed of randomly distributed β-(1-4)-linked d -glucosamine and N-acetyl- d -glucosamine. It is one of the major cationic polymers and the second most abundant polysaccharides in nature. It is extensively used to the biomedical and the industrial fields. Specially, chitosan has been studied much in the
Changyong Choi, Joung-Pyo Nam, Jae-Woon Nah   +2 more
openaire   +1 more source

Chitin and Chitosan Derivatives

2013
Part I Synthesis and Characterization of Chitin and Chitosan Derivatives Chitin and Chitosan Derivatives Se-Kwon Kim and Jayachandran Venkatesan Synthesis, Characterization, and Biomedical Applications of Chitosan and Its Derivatives Hans E. Junginer and Assal M. M.
  +4 more sources

New synthetic chitosan derivatives bearing benzenoid/heterocyclic moieties with enhanced antioxidant and antifungal activities.

Carbohydrate Polymers, 2020
In this paper, several novel chitosan derivatives bearing benzenoid / heterocyclic moieties were synthesized via introducing aminobenzene and heterocyclic compounds onto carboxymethyl chitosan.
Yingqi Mi, Jingjing Zhang, Yuan Chen, Xueqi Sun, Wenqiang Tan, Qing Li, Zhanyong Guo   +6 more
semanticscholar   +1 more source

Synthesis of silver nanoparticles using gallic acid-conjugated chitosan derivatives.

Carbohydrate Polymers, 2020
In presented study, various chitosan derivatives containing covalently bounded gallic acid were obtained: chitosan with gallic acid (CG), quaternized chitosan with gallic acid (QCG), and succinylated chitosan with gallic acid (SCG).
A. Lunkov, B. Shagdarova, M. Konovalova, Yuliya V Zhuikova, N. Drozd, A. Il’ina, V. Varlamov   +6 more
semanticscholar   +1 more source

Chitin/chitosan derivatives and their interactions with microorganisms: a comprehensive review and future perspectives

Critical Reviews in Biotechnology, 2020
Chitosan, obtained as a result of the deacetylation of chitin, one of the most important naturally occurring polymers, has antimicrobial properties against fungi, and bacteria.
Muhammad Shahid Riaz Rajoka, H. Mehwish, Yiguang Wu, Liqing Zhao, Yasir Arfat, Kashif Majeed, Shoaib Anwaar   +6 more
semanticscholar   +1 more source

Factors influencing the antimicrobial mechanism of chitosan action and its derivatives: A review.

International Journal of Biological Macromolecules
Chitosan, a versatile amino polysaccharide biopolymer derived from chitin, exhibits broad-spectrum antimicrobial activity against various pathogenic microorganisms, including gram-negative and gram-positive bacteria, as well as fungi.
Mona Nasaj, Mohammad Chehelgerdi, Babak Asghari, Amirhossein Ahmadieh-Yazdi, Masoumeh Asgari, Saber Kabiri-Samani, E. Sharifi, Mohammadreza Arabestani   +7 more
semanticscholar   +1 more source

Review: Application of chitosan and its derivatives in medical materials.

International Journal of Biological Macromolecules, 2023
Chitin is a natural polymeric polysaccharide extracted from marine crustaceans, and chitosan is obtained by removing part of the acetyl group (usually more than 60 %) in chitin's structure. Chitosan has attracted wide attention from researchers worldwide
Wen Tang, Juan Wang, Huiwen Hou, Yan Li, Jie Wang, Jiaai Fu, Lu Lu, Didi Gao, Zengmei Liu, F. Zhao, Xinqing Gao, P. Ling, Fengshan Wang, Feng Sun, Haining Tan   +14 more
semanticscholar   +1 more source

The antibacterial structure-activity relationship for common chitosan derivatives.

International Journal of Biological Macromolecules, 2020
The relationship between the degree of substitution and antibacterial activity was studied for six common chitosan derivatives N, N,N-trimethyl chitosan (TMCNH2/TM and TMCTM/DM) N-(2-(N,N,N-trimethylammoniumyl)acetyl)-chitin (TACin), N-(2-hydroxyl ...
S. Rathinam, S. Solodova, I. Kristjánsdóttir, M. Hjálmarsdóttir, M. Másson   +4 more
semanticscholar   +1 more source

Novel heterocyclic chitosan derivatives and their derived nanoparticles: Catalytic and antibacterial properties.

International Journal of Biological Macromolecules, 2020
The metal-assisted nitrone-nitrile cycloaddition reaction is apply to empower chitosan chemistry. The ultrasonic irradiation has proven to efficiently accelerate the cycloaddition affording new heterocyclic (1,2,4-oxadiazoline) chitosan derivatives and ...
A. Kritchenkov, A. Egorov, A. A. Artemjev, I. Kritchenkov, O. Volkova, E. Kiprushkina, L. Zabodalova, E. Suchkova, N. Yagafarov, A. Tskhovrebov, A. V. Kurliuk, T. V. Shakola, V. Khrustalev   +12 more
semanticscholar   +1 more source

The antioxidant and antifungal activity of chitosan derivatives bearing Schiff bases and quaternary ammonium salts.

Carbohydrate Polymers, 2019
In order to improve the antioxidant and antifungal activity of chitosan, eight chitosan derivatives containing Schiff bases and quaternary ammonium salts were synthesized via an intermediate 6-O-chloroacetyl-2-N,N,N-trimethyl quaternary ammonium salt ...
Lijie Wei, Wenqiang Tan, Gang Wang, Qing Li, Fang Dong, Zhanyong Guo   +5 more
semanticscholar   +1 more source