Cross-linked chitosan

The novel L-lysine modified cross-linked chitosan resin containing imine linkers [15] has been studied by the 13C CP MAS spectroscopy.31 However, as some ambiguous results were obtained and the resin was insoluble, instead of the resin a soluble model compound, derivative of chitosan oligosaccharide, has been obtained and investigated. 

In view of the conductive and electrocatalytic features of carbon nanotubes (CNTs), AChE and choline oxidases (COx) have been covalently coimmobilized on multiwall carbon nanotubes (MWNTs) for the preparation of an organophosphorus pesticide (OP) biosensor [40, 41], Another OP biosensor has also been constructed by adsorption of AChE on MWNTs modified thick film [8], More recently AChE has been covalently linked with MWNTs doped glutaraldehyde cross-linked chitosan composite film [11], in which biopolymer chitosan provides biocompatible nature to the enzyme and MWNTs improve the conductive nature of chitosan. Even though these enzyme immobilization techniques have been reported in the last three decades, no method can be commonly used for all the enzymes by retaining their complete activity. 

V.B. Kandimalla and H.X. Ju, Binding of acetylcholinesterase to multiwall carbon nanotube-cross-linked chitosan composite for flow-injection amperometric detection of an organophosphorous insecticide. Chem. Eur. J. 12, 1074—1080 (2006). 

Chitosan, cross-linked chitosan alginate gels (in presence of calcium ions) starch egg white, soybean and whey proteins... 

Desai, K.G., Park, H.J. (2005). Encapsulation of vitamin C in tripolyphosphate cross-linked chitosan microspheres by spray drying. Journal of Microencapsulation, 2, 179-192. 

Figure 25. Electron spectra from glutaraldehyde cross-linked chitosan.

Liang ZP, Feng YQ, Meng SX et al (2005) Preparation and properties of urease immobilized onto glutaraldehyde cross-linked chitosan beads. Chin Chem Lett 16 135-138... 

Cross-linked Chitosan Microspheres Coated with Polysaccharides or Lipid... 

Cross-linked Chitosan Network Beads with Spacer Groups. 88... 

The procedure for the preparation of cross-linked chitosan microspheres coated with polysaccharide or lipid for intelligent drug delivery systems is illustrated in Fig. 11 [230]. 

Ohga et al. cross-linked chitosan with epichlorohydrin to give an imprinted resin [7]. The obtained resin was utilised in column chromatography for separating metal ions. The column packed with a Cd(II)-imprinted resin could separate Cd(II),... 

Kumbar, S.G. Kulkami, A.R. Aminabhavi, T.M. Cross-linked chitosan microspheres for encapsulation of diclofenac sodium effect of crosslinking agent. J. Microencapsul. 2002,19 (2), 173-180. 

Schiffman JD, Schauer CL (2(X)7) Cross-linking chitosan nanofibers. Biomacromolecules 8 (2) 594-601... 

Deposition of cross-linked chitosan on the mineral support surface. 

Fig. 10 N2 sorption isotherms of aerogels of chitosan empty squares) and cross-linked chitosan (filled squares)...

T. Uragami, F. Yoshida and M. Sugihara, Studies on syntheses and permeabilities of special polymer membranes. 59. Active transport of organic ions through cross-linked chitosan membrane, Separation Sci. Technol., 1988, 23, 1067-1082. 

Rinki K, Dutta PK (2010) Physicochemical and biological activity study of genipin-cross-linked chitosan scaffolds prepared by using supercritical carbon dioxide for tissue engineering applications. Int J Biol Macromol 46 261-266... 

M.S. Chiou, H.Y. Li, Adsorption behavior of reactive dye in aqueous solution on chemical cross-linked chitosan beads , Chemosphere, 50, 1095-1105, (2003). 

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