Results 21 to 30 of about 32,712 (302)

Synthesis and Characterization of N,N,N-trimethyl-O-(ureidopyridinium)acetyl Chitosan Derivatives with Antioxidant and Antifungal Activities

Marine Drugs, 2020
Chitosan is an active biopolymer, and the combination of it with other active groups can be a valuable method to improve the potential application of the resultant derivatives in food, cosmetics, packaging materials, and other industries.
Jingjing Zhang, Wenqiang Tan, Qing Li, Fang Dong, Zhanyong Guo   +4 more
doaj   +1 more source

Anti-COVID-19 Credentials of Chitosan Composites and Derivatives: Future Scope?

Antibiotics, 2023
Chitosan derivatives and composites are the next generation polymers for biomedical applications. With their humble origins from the second most abundant naturally available polymer chitin, chitosan is currently one of the most promising polymer systems,
Judy Gopal, Manikandan Muthu, Suraj Shiv Charan Pushparaj, Iyyakkannu Sivanesan   +3 more
doaj   +1 more source

Design of Chitosan Sterilization Agents by a Structure Combination Strategy and Their Potential Application in Crop Protection

Molecules, 2021
Chitosan is the only cationic polysaccharide in nature. It is a type of renewable resource and is abundant. It has good biocompatibility, biodegradability and biological activity.
Weixiang Liu, Yukun Qin, Pengcheng Li
doaj   +1 more source

Novel Amino-Pyridine Functionalized Chitosan Quaternary Ammonium Derivatives: Design, Synthesis, and Antioxidant Activity

Molecules, 2017
Chemical modification of chitosan is increasingly studied for its potential of providing new applications of chitosan. Here, a group of novel chitosan quaternary ammonium derivatives containing pyridine or amino-pyridine were designed and successfully ...
Qing Li, Caili Zhang, Wenqiang Tan, Guodong Gu, Zhanyong Guo   +4 more
doaj   +1 more source

Tumor microenvironment penetrating chitosan nanoparticles for elimination of cancer relapse and minimal residual disease

Frontiers in Oncology, 2022
Chitosan and its derivatives are among biomaterials with numerous medical applications, especially in cancer. Chitosan is amenable to forming innumerable shapes such as micelles, niosomes, hydrogels, nanoparticles, and scaffolds, among others.
Hossein Mahmudi, Hossein Mahmudi, Mohammad Amin Adili-Aghdam, Mohammad Shahpouri, Mehdi Jaymand, Zohreh Amoozgar, Rana Jahanban-Esfahlan, Rana Jahanban-Esfahlan   +7 more
doaj   +1 more source

Synthesis, Characterization, and Antifungal Activity of Pyridine-Based Triple Quaternized Chitosan Derivatives

Molecules, 2018
In this study, a series of triple quaternized chitosan derivatives, including 6-O-[(2-hydroxy-3-trimethylammonium)propyl]-2-N-(1-pyridylmethyl-2-ylmethyl)-N,N-dimethyl chitosan chloride (7), 6-O-[(2-hydroxy-3-trimethylammonium)propyl]-2-N-(1 ...
Lijie Wei, Yuan Chen, Wenqiang Tan, Qing Li, Guodong Gu, Fang Dong, Zhanyong Guo   +6 more
doaj   +1 more source

Chitosan and chitosan derivatives: Recent advancements in production and applications in environmental remediation

Environmental Advances, 2023
This review, which presents recent advancements in production and applications in environmental remediation of chitosan and chitosan derivatives, covers relevant literature in the last 7–8 years, which is nearly half-term of the 15-year period where the ...
Ibrahim Issahaku, Isaac K. Tetteh, Antonia Y. Tetteh   +2 more
doaj   +1 more source

N-octyl chitosan derivatives as amphiphilic carrier agents for herbicide formulations

Open Chemistry, 2019
This study investigates the potential of N-octyl chitosan derivatives, namely N-octyl-O-sulfate chitosan (NOOSC), N-octyl-N-succinyl chitosan (NONSC) and N-octyl-O-glycol chitosan (NOOGC) as amphiphilic carrier agents for atrazine in water-insoluble ...
Kamari Azlan, Yusoff Siti Najiah Mohd
doaj   +1 more source

Chitosan-based Maillard self-reaction products: Formation, characterization, antioxidant and antimicrobial potential

Carbohydrate Polymer Technologies and Applications, 2022
In this work, new chitosan derivatives (CS1-CS6) were obtained by short-term hydrothermal treatment. The formation of chitosan derivatives occurred through two simultaneous processes: hydrolysis and Maillard self-reaction.
Aliaksandr Kraskouski, Kseniya Hileuskaya, Viktoryia Nikalaichuk, Alena Ladutska, Volha Kabanava, Wanzi Yao, Lijun You   +6 more
doaj   +1 more source

Applications of Chitosan and its Derivatives in Skin and Soft Tissue Diseases

Frontiers in Bioengineering and Biotechnology, 2022
Chitosan and its derivatives are bioactive molecules that have recently been used in various fields, especially in the medical field. The antibacterial, antitumor, and immunomodulatory properties of chitosan have been extensively studied. Chitosan can be
Yidan Xia, Dongxu Wang, Da Liu, Jiayang Su, Ye Jin, Duo Wang, Beibei Han, Ziping Jiang, Bin Liu   +8 more
doaj   +1 more source