Electro-Induced Covalent Cross-Linking of Chitosan and Formation of Chitosan Hydrogel Films: Its Application as an Enzyme Immobilization Matrix for Use in a Phenol Sensor

2010 ◽  
Vol 82 (12) ◽  
pp. 5275-5281 ◽  
Author(s):  
Yongchao Zhang ◽  
Chang Ji
Keyword(s):  
Enzyme Immobilization ◽  
Cross Linking ◽  
Chitosan Hydrogel ◽  
Immobilization Matrix ◽  
Hydrogel Films

Reversibly Reconfigurable Cross-Linking Induces Fusion of Separate Chitosan Hydrogel Films

2018 ◽  
Vol 1 (5) ◽  
pp. 1695-1704 ◽  
Author(s):  
Huimin He ◽  
Jinyang Li ◽  
Xiaodong Cao ◽  
Changshun Ruan ◽  
Qi Feng ◽  
...  
Keyword(s):  
Cross Linking ◽  
Chitosan Hydrogel ◽  
Hydrogel Films

scholarly journals Graphene-Based Materials Immobilized within Chitosan: Applications as Adsorbents for the Removal of Aquatic Pollutants

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3655
Author(s):  
Daniele C. da Silva Alves ◽  
Bronach Healy ◽  
Tian Yu ◽  
Carmel B. Breslin
Keyword(s):  
Mechanical Properties ◽  
Heavy Metal Ions ◽  
Chelating Agents ◽  
Organic Molecules ◽  
Adsorption Process ◽  
Chitosan Hydrogel ◽  
Polymeric Blends ◽  
Aquatic Pollutants ◽  
Immobilization Matrix ◽  
Adsorbent Materials

Graphene and its derivatives, especially graphene oxide (GO), are attracting considerable interest in the fabrication of new adsorbents that have the potential to remove various pollutants that have escaped into the aquatic environment. Herein, the development of GO/chitosan (GO/CS) composites as adsorbent materials is described and reviewed. This combination is interesting as the addition of graphene to chitosan enhances its mechanical properties, while the chitosan hydrogel serves as an immobilization matrix for graphene. Following a brief description of both graphene and chitosan as independent adsorbent materials, the emerging GO/CS composites are introduced. The additional materials that have been added to the GO/CS composites, including magnetic iron oxides, chelating agents, cyclodextrins, additional adsorbents and polymeric blends, are then described and discussed. The performance of these materials in the removal of heavy metal ions, dyes and other organic molecules are discussed followed by the introduction of strategies employed in the regeneration of the GO/CS adsorbents. It is clear that, while some challenges exist, including cost, regeneration and selectivity in the adsorption process, the GO/CS composites are emerging as promising adsorbent materials.

Hypromellose succinate-crosslinked chitosan hydrogel films for potential wound dressing

2016 ◽  
Vol 91 ◽  
pp. 85-91 ◽  
Author(s):  
Qiong Jiang ◽  
Wei zhou ◽  
Jun Wang ◽  
Rupei Tang ◽  
Di Zhang ◽  
...  
Keyword(s):  
Wound Dressing ◽  
Chitosan Hydrogel ◽  
Crosslinked Chitosan ◽  
Hydrogel Films

scholarly journals A Co(II)-based metallo-supramolecular polymer as a novel enzyme immobilization matrix for electrochemical glucose biosensing

2016 ◽  
Vol 83 ◽  
pp. 499-506 ◽  
Author(s):  
Chih-Yu Hsu ◽  
Takashi Sato ◽  
Satoshi Moriyama ◽  
Masayoshi Higuchi
Keyword(s):  
Enzyme Immobilization ◽  
Supramolecular Polymer ◽  
Immobilization Matrix ◽  
Glucose Biosensing

scholarly journals Polyamide fabric coated with a dihydroxyacetone-loaded chitosan hydrogel for a cosmeto-textile application

2019 ◽  
Vol 50 (4) ◽  
pp. 526-542
Author(s):  
Isabel Solé ◽  
Susana Vílchez ◽  
Núria Montanyà ◽  
Maria José García-Celma ◽  
Marcela Ferrándiz ◽  
...  
Keyword(s):  
Active Component ◽  
Optical Microscope ◽  
Dark Field ◽  
Cross Linking ◽  
Dialysis Membrane ◽  
Chitosan Hydrogel ◽  
Evaluation Panel ◽  
Polyamide Fabric ◽  
Chitosan Hydrogels ◽  
Cryogenic Scanning Electron Microscopy

Cosmeto-textiles, which allow the administration of molecules when in contact with the skin, are increasingly being developed by cosmetic industries. We have designed an innovative approach for cosmeto-textile products, based on the impregnation of textile fibers with chitosan hydrogels, which have been cross-linked with genipin and loaded with dihydroxyacetone, which is an active component that induces sunless tanning. Dihydroxyacetone-loaded chitosan hydrogels have been prepared and characterized by means of cryogenic scanning electron microscopy (cryo-SEM). The images showed that genipin cross-linking decreases the mesh distance of hydrogels. The release of dihydroxyacetone from these cross-linked genipin chitosan hydrogels has been studied by a dialysis membrane method. These dihydroxyacetone-loaded chitosan hydrogels have been incorporated to polyamide textiles by a simple padding technique. The presence of dihydroxyacetone on these textiles has been detected by hyperspectral imaging on a dark field high resolution optical microscope. Finally, the performance of fabrics as cosmeto-textiles, with a tanning effect, has been evaluated by skin-colorimetry measured with an evaluation panel of 10 people. The results have demonstrated that dihydroxyacetone-loaded textiles produce a tanning effect on skin, and incorporation of dihydroxyacetone-loaded chitosan hydrogels into polyamide fabrics represents a friendly and appropriate strategy to obtain a cosmeto-textile with tanning effect.

Enzyme immobilization on porous chitosan hydrogel capsules formed by anionic surfactant gelation

2020 ◽  
Vol 42 (5) ◽  
pp. 845-852
Author(s):  
Amos K. Dwamena ◽  
Seung Han Woo ◽  
Chang Sup Kim
Keyword(s):  
Enzyme Immobilization ◽  
Anionic Surfactant ◽  
Chitosan Hydrogel ◽  
Porous Chitosan ◽  
Hydrogel Capsules

Chitosan hydrogel films as a template for mild biosynthesis of CdS quantum dots with highly efficient photocatalytic activity

2012 ◽  
Vol 258 (8) ◽  
pp. 3513-3518 ◽  
Author(s):  
Ru Jiang ◽  
Huayue Zhu ◽  
Jun Yao ◽  
Yongqian Fu ◽  
Yujiang Guan
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Cds Quantum Dots ◽  
Chitosan Hydrogel ◽  
Highly Efficient ◽  
Hydrogel Films

Development of amperometric biosensor for glucose based on a novel attractive enzyme immobilization matrix: Calcium carbonate nanoparticles

2007 ◽  
Vol 22 (8) ◽  
pp. 1612-1617 ◽  
Author(s):  
Dan Shan ◽  
Mingjuan Zhu ◽  
Huaiguo Xue ◽  
Serge Cosnier
Keyword(s):  
Calcium Carbonate ◽  
Enzyme Immobilization ◽  
Amperometric Biosensor ◽  
Immobilization Matrix

Characterization and enzymatic degradation of PEG-cross-linked chitosan hydrogel films

2009 ◽  
Vol 114 (3) ◽  
pp. 1902-1907 ◽  
Author(s):  
Hiroaki Tanuma ◽  
Hiroki Kiuchi ◽  
Weihua Kai ◽  
Koji Yazawa ◽  
Yoshio Inoue
Keyword(s):  
Enzymatic Degradation ◽  
Chitosan Hydrogel ◽  
Hydrogel Films

Development of Potentiometric Biosensors Using Electrodeposited Polytyramine as the Enzyme Immobilization Matrix

2001 ◽  
Vol 13 (18) ◽  
pp. 1469-1474 ◽  
Author(s):  
Manihar Situmorang ◽  
J. Justin Gooding ◽  
D. Brynn Hibbert ◽  
Donald Barnett
Keyword(s):  
Enzyme Immobilization ◽  
Immobilization Matrix
Sign in / Sign up

Export Citation Format

Share Document