Results 11 to 20 of about 32,119 (253)

The Microstructure, Antibacterial and Antitumor Activities of Chitosan Oligosaccharides and Derivatives

open access: yesMarine Drugs, 2022
Chitosan obtained from abundant marine resources has been proven to have a variety of biological activities. However, due to its poor water solubility, chitosan application is limited, and the degradation products of chitosan oligosaccharides are better ...
Dawei Yu   +9 more
doaj   +1 more source

Grafting of 18β-Glycyrrhetinic Acid and Sialic Acid onto Chitosan to Produce a New Amphipathic Chitosan Derivative: Synthesis, Characterization, and Cytotoxicity

open access: yesMolecules, 2021
Chitosan is the only cationic polysaccharide found in nature. It has broad application prospects in biomaterials, but its application is limited due to its poor solubility in water.
Wei-Yan Quan   +6 more
doaj   +1 more source

Acute and subacute in vivo safety assessment of developed chitosan derivatives for food applications

open access: yesFood Hydrocolloids for Health, 2023
The acute and subacute studies of two chitosan derivatives was conducted by oral administration on Swiss albino mice. Chitosan soluble derivatives were prepared by depolymerization method using potassium persulfate.
T.P. Punarvasu, K.V. Harish Prashanth
doaj   +1 more source

Mechanism and Application of Chitosan and Its Derivatives in Promoting Permeation in Transdermal Drug Delivery Systems: A Review

open access: yesPharmaceuticals, 2022
The mechanisms and applications of chitosan and its derivatives in transdermal drug delivery to promote drug permeation were reviewed in this paper.
Jinqian Ma, Yuchen Wang, Rong Lu
doaj   +1 more source

Progress in Research of Chitosan Chemical Modification Technologies and Their Applications

open access: yesMarine Drugs, 2022
Chitosan, which is derived from chitin, is the only known natural alkaline cationic polymer. Chitosan is a biological material that can significantly improve the living standard of the country.
Qizhou Chen   +7 more
doaj   +1 more source

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

open access: yesMarine 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   +4 more
doaj   +1 more source

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

open access: yesAntibiotics, 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   +3 more
doaj   +1 more source

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

open access: yesMolecules, 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

open access: yesMolecules, 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   +4 more
doaj   +1 more source

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

open access: yesFrontiers 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   +7 more
doaj   +1 more source

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