Results 1 to 10 of about 35,049 (259)

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   +2 more sources

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   +3 more sources

Antimicrobial Properties of Chitosan and Chitosan Derivatives in the Treatment of Enteric Infections [PDF]

open access: yesMolecules, 2021
Antibiotics played an important role in controlling the development of enteric infection. However, the emergence of antibiotic resistance and gut dysbiosis led to a growing interest in the use of natural antimicrobial agents as alternatives for therapy ...
Dazhong Yan   +5 more
doaj   +2 more sources

New N-Methylimidazole-Functionalized Chitosan Derivatives: Hemocompatibility and Antibacterial Properties [PDF]

open access: yesBiomimetics, 2023
Novel imidazole derivatives of the low molecular weight chitosan N-(2-hydroxypropyl)-1H-1,2,3-triazol-4-yl)methyl)-1-methyl-1H-imidazol-3-ium chitosan chloride (NMIC) were synthesized using copper-catalyzed azide–alkyne cycloaddition (CuAAC). The degrees
Natalia Drozd   +4 more
doaj   +2 more sources

Strategies for the Preparation of Chitosan Derivatives for Antimicrobial, Drug Delivery, and Agricultural Applications: A Review [PDF]

open access: yesMolecules, 2023
Chitosan has received much attention for its role in designing and developing novel derivatives as well as its applications across a broad spectrum of biological and physiological activities, owing to its desirable characteristics such as being ...
Rajeev Shrestha   +3 more
doaj   +2 more sources

Synthesis, characterization and anticoagulant activity of chitosan derivatives

open access: yesSaudi Pharmaceutical Journal, 2020
Chitosan derivatives are reported as anticoagulants in the literature. This work was undertaken to develop novel chitosan derivatives as anticoagulants.
Mohd. Imran   +3 more
doaj   +3 more sources

Using Chitosan or Chitosan Derivatives in Cancer Therapy

open access: yesPolysaccharides, 2021
Cancer is one of the major causes of death worldwide. Chemotherapeutic drugs have become a popular choice as anticancer agents. Despite the therapeutic benefits of chemotherapeutic drugs, patients often experience side effects and drug resistance ...
Md Salman Shakil   +7 more
doaj   +2 more sources

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

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