Results 1 to 10 of about 6,480,350 (293)

Chemical Modification of Polysaccharides: A Review of Synthetic Approaches, Biological Activity and the Structure–Activity Relationship

open access: yesMolecules, 2023
Natural polysaccharides are macromolecular substances with great potential owing to their wide biological activity and low toxicity. However, not all polysaccharides have significant pharmacodynamic activity; hence, appropriate chemical modification ...
Tianbo Liu   +7 more
semanticscholar   +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
semanticscholar   +1 more source

Two‐Photon Polymerization: Fundamentals, Materials, and Chemical Modification Strategies

open access: yesAdvancement of science, 2022
Two‐photon polymerization (TPP) has become a premier state‐of‐the‐art method for microscale fabrication of bespoke polymeric devices and surfaces.
Seán O'Halloran   +3 more
semanticscholar   +1 more source

Chemical Modification, Characterization, and Activity Changes of Land Plant Polysaccharides: A Review

open access: yesPolymers, 2022
Plant polysaccharides are widely found in nature and have a variety of biological activities, including immunomodulatory, antioxidative, and antitumoral.
Zhi-Wei Li   +5 more
semanticscholar   +1 more source

Chemical Modification of Hyaluronan and Their Biomedical Applications

open access: yesFrontiers in Chemistry, 2022
Hyaluronan, the extracellular matrix glycosaminoglycan, is an important structural component of many tissues playing a critical role in a variety of biological contexts.
V. Hintze, M. Schnabelrauch, S. Rother
semanticscholar   +1 more source

Temperature-adaptive hydrogel optical waveguide with soft tissue-affinity for thermal regulated interventional photomedicine

open access: yesNature Communications, 2022
Light penetration and overheating are major issues facing the application of photothermal therapy. Here, the authors develop a temperature responsive hydrogel optical waveguide for controlled delivery of light to deep tumours and demonstrate ...
Guoyin Chen   +11 more
doaj   +1 more source

Hydrophobization of lignocellulosic materials part II: chemical modification

open access: yesCellulose, 2022
Lignocellulosic materials with hydrophobic properties are of great interest for developing sustainable products that can be used in various applications such as packaging, water-repellent and self-cleaning materials, oil and water separation or as ...
Sandra Rodríguez-Fabià   +3 more
semanticscholar   +1 more source

Construction of nanofibrous scaffolds with interconnected perfusable microchannel networks for engineering of vascularized bone tissue

open access: yesBioactive Materials, 2021
Vascularization and bone regeneration are two closely related processes during bone reconstruction. A three-dimensional (3D) scaffold with porous architecture provides a suitable microenvironment for vascular growth and bone formation. Here, we present a
Jiani Gu   +9 more
doaj   +1 more source

Effects of chemical modification and nanotechnology on wood properties

open access: yesNanotechnology Reviews, 2021
As a green material, wood is widely used in building decoration, railway construction, and other fields. However, the wood itself has inherent defects of being easy to absorb water and deform, rot, and decrease in strength.
Wen Bi   +7 more
semanticscholar   +1 more source

Interfacial engineered superelastic metal-organic framework aerogels with van-der-Waals barrier channels for nerve agents decomposition

open access: yesNature Communications, 2023
Chemical warfare agents (CWAs) significantly threaten human peace and global security. Most personal protective equipment (PPE) deployed to prevent exposure to CWAs is generally devoid of self-detoxifying activity.
Zishuo Yan   +4 more
doaj   +1 more source

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