Results 161 to 170 of about 153,064 (212)

Halloysite and Chitosan Oligosaccharide Nanocomposite for Wound Healing [PDF]

open access: yesActa Biomaterialia, 2017
Halloysite is a natural nanotubular clay mineral (HNTs, Halloysite Nano Tubes) chemically identical to kaolinite and, due to its good biocompatibility, is an attractive nanomaterial for a vast range of biological applications. Chitosan oligosaccharides are homo- or heterooligomers of N-acetylglucosamine and D-glucosamine, that accelerate wound healing ...
Antonia Icaro Cornaglia   +2 more
exaly   +5 more sources

Preparation and Antioxidant Activity of Novel Chitosan Oligosaccharide Quinolinyl Urea Derivatives

open access: yesCarbohydrate Research, 2022
In the present study, four new chitosan oligosaccharide derivatives bearing quinolinyl urea groups were syn-thesized by reaction between 2-methoxyformylated chitosan oligosaccharide and aminoquinoline.
Wenqiang Tan, Zhanyong Guo, Xiguang Liu
exaly   +2 more sources
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Advances in Characterisation and Biological Activities of Chitosan and Chitosan Oligosaccharides

Food Chemistry, 2016
Chitosan and chitosan oligosaccharides (COS) have been reported to possess various biomedical properties, including antimicrobial activities, immuno-enhancing effects, and anti-tumour activities. COS have attracted considerable interest due to their physicochemical properties, and potential applications in the food and pharmaceutical industries ...
Xin Yang, Yan-Xin Zhang, Jing Wang
exaly   +3 more sources

Preparation of 2,6-Diurea-Chitosan Oligosaccharide Derivatives for Efficient Antifungal and Antioxidant Activities

open access: yesCarbohydrate Polymers, 2020
In this study, 2-urea-chitosan oligosaccharide derivatives (2-urea-COS derivatives) and 2,6-diurea-chitosan oligosaccharide derivatives (2,6-diurea-COS derivatives) were successfully designed and synthesized via intermediate 2-methoxyformylated chitosan ...
Wenqiang Tan, Qing Li, Zhanyong Guo
exaly   +2 more sources

Preparation and Biological Activities of Chitosan Oligosaccharides

Trends in Food Science and Technology, 2021
Abstract Background Chitosan oligosaccharides (COSs) are the degraded products prepared from the deacetylation and depolymerization of chitin or chitosan using physical, chemical, or enzymatic hydrolysis. In comparison to chitosan and chitin, COS, the hydrolyzed form, has lower molecular weight, lower degree of polymerization (DP), higher degree of ...
Gangliang Huang   +2 more
exaly   +2 more sources

Chitosan oligosaccharide (COS): An overview

International Journal of Biological Macromolecules, 2019
The frequently studied polysaccharide, chitosan oligosaccharide/chitooligosaccharide (COS) is the major degradation product of chitosan/chitin via chemical hydrolysis or enzymatic degradation involving deacetylation and depolymerization processes.
Muhammad Naveed   +11 more
openaire   +3 more sources

Impacts of chitosan oligosaccharide (COS) on angiogenic activities

Microvascular Research, 2021
It has been proved that chitosan oligosaccharide (COS) has a more favorable therapeutic applications such as wound healing and anti-tumor treatment, and can affect angiogenesis. For better understanding the effect of COS on angiogenic activities at cellular level, COS with different concentration and degree of polymerization (DP) were used to culture ...
Xiuhong, Huang   +2 more
openaire   +2 more sources

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