نتایج جستجو برای: chitosan gel

تعداد نتایج: 121609  

Journal: :Carbohydrate polymers 2013
S S Silva S G Caridade J F Mano R L Reis

The positive interaction between polysaccharides with active phytochemicals found in medicinal plants may represent a strategy to create active wound dressing materials useful for skin repair. In the present work, blended membranes composed of chitosan (Cht) and aloe vera gel were prepared through the solvent casting, and were crosslinked with genipin to improve their properties. Topography, sw...

Introduction: Among various carrier materials capable of drug controlled-release, silica xerogels have been found to be noteworthy for loading and sustaining drug release. These silica xerogels were synthesized through sol-gel technology using Tetraethylortosilicate (TEOS) as a silica precursor. Methods: This study was an experimental basic research, which aimed to characterize the effect of a...

Journal: :Biomacromolecules 2007
Dominic Filion Marc Lavertu Michael D Buschmann

Chitosan is a linear cationic biopolymer composed of glucosamine and N-acetyl-glucosamine that is only soluble in acidic aqueous solutions and precipitates when neutralized. However, it was recently discovered that chitosan dissolved in solutions containing glycerol phosphate was soluble at near neutral pH and produced a sol-gel transition when heated. Understanding this unique thermogelling sy...

2015
Mohamed Ali

Modi Chetna D. 83 Ph. D. Thesis 3.3. Review of work done on Methotrexate Laxmi et al. 52 showed the preparation of niosomal MTX in chitosan gel and test the same of irritation and sensitization on healthy human volunteers and also comparing its efficacy with a marketed MTX gel in the treatment of localized psoriasis. Results showed that no significant irritation and sensitization is produced fr...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2005
Hyunmin Yi Li-Qun Wu Reza Ghodssi Gary W Rubloff Gregory F Payne William E Bentley

The signal-guided and sequential assembly of biomolecules onto patterned surfaces is demonstrated. Readily transmittable electric signals are used to guide spatially selective deposition of the pH-responsive polysaccharide, chitosan, and functionalized chitosan conjugates, by generating localized pH gradients. The nucleophilic primary amine groups of chitosan enable facile conjugation of protei...

Journal: :Bioresource technology 2015
Xiaogang Luo Jian Zeng Shilin Liu Lina Zhang

Development of highly cost-effective, highly operation-convenient and highly efficient natural polymer-based adsorbents for their biodegradability and biocompatibility, and supply of safe drinking water are the most threatening problems in water treatment field. To tackle the challenges, a new kind of efficient recyclable magnetic chitosan/cellulose hybrid microspheres was prepared by sol-gel m...

Journal: :New Journal of Chemistry 2023

A chitosan gel additive modulates the initial vaterite dissolution–recrystallisation in injectable aragonite-based composite cement and promotes its vitro bioactivity.

Journal: :IOP conference series 2021

Abstract Nanocomposite has gain great attention in many applications due to its better properties nanoscale. Chitosan-Zeolite-ZnO nanocomposite were prepared via sol-gel method and analysed by molecular docking study predict antiviral activity against SARS CoV-2. The CoV-2 glycoprotein as receptor from RCSB PDB complex ligand of Chitosan-Zeolite ZnO chosen interaction model between receptor. Ac...

Journal: :Carbohydrate polymers 2017
Yiming Feng Georg Kopplin Kimihiko Sato Kurt I Draget Kjell M Vårum

Alginates are polysaccharides that are widely used in relation to their ability to form gels. Recently we reported that alginates may also form gels with chitosan oligomers as crosslinkers (Khong, Aarstad, Skjåk-Bræk, Draget, & Vårum, 2013). The purpose of the present study was to characterize alginate gels crosslinked with calcium and chitosan oligomers. Using two different alginates of simila...

Journal: :Biomaterials 2006
Peter Roughley Caroline Hoemann Eric DesRosiers Fackson Mwale John Antoniou Mauro Alini

The suitability of chitosan-based hydrogels as scaffolds for the encapsulation of intervertebral disc (IVD) cells and the accumulation of a functional extracellular matrix mimicking that of the nucleus pulposus (NP) was investigated. The specific hypothesis under study was that the cationic chitosan would form an ideal environment in which large quantities of newly synthesized anionic proteogly...

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