Chitosan schematic representation

Fig. 12. Schematic representation of how the structure of the adsorbed chitosan layer varies with the solution pH. Reprinted with permission from Ref. [132]. 1992, American Chemical Society.

Fig. 9.5 Schematic representation of chitosan structure, a biopolymer composed of 2-amino-2-deoxy- P-D-glucose...

Fig. 9 a, b. Complex formation of polyelectrolytes with rigid polymer chains such as polysaccharides. (a) pH Dependence of the composition of the complex. (1) Theoretical values assuming stoichiometry (2) Experimental values (b) Schematic representation of a ladder-like complex structure of one part of SCS and two parts of GC SCS = Sulfated cellulose, GC = glycol chitosan... 

Fig. 10. Schematic representation of ionic interactions between alginate and chitosan at different pH [(a) pH 5.4 (b) pH 2.0]...

Fig. 3.7 Schematic representations for the preparation of raw chitin and chitosan and chitin whiskers...

Fig. 3.25 Schematic representation of imprinted chitosan-based matrix preparation [130]...

Figure 25.1 Schematic representation of (a) completely acetylated chitin (b) cellulose and (c) completely deacetylated chitosan. The structural similarity between them becomes evident.

Figure 25.2 Schematic representation of the different steps involved in chitin/chitosan preparation procedures. In this diagram a second treatment with dilute NaOH is considered for chitin isolation in order to remove any residual protein.

Figure 10.6 (a) Schematic representation of the encapsulation and lysozyme release mechanism from carboxymethyl chitosan-grafted-poly(amidoamine) (CM-chitosan-PAMAM)/ lysozyme polyion complex (PIC) nanoparticles, (b) Schematic representation of synthesis and self-assembling for CM-chitosan-PAMAM dendrimer nanoparticles, and the encapsulation and lysozyme release mechanism from CM-chitosan-PAMAM/lysozyme PIC nanoparticles. Reprinted from X. Zhang, J. Zhao, Y. Wen, C. Zhu.J. Yang, F. Yao, Carboxymethyl chitosan-poly(amidoamme) dendrimer core-shell nanoparticles for intracellular lysozyme dehvery, Carhohydrate Polymers 98 (2013) 1326-1334. Copyright (2013), with permission from Elsevier. 

Figure 11.2 (a) Schematic representation of polymeric nanomedicine forming amphiphiles. (b) Chitosan (1 2), poly(L-lysine) (3) and poly(ethylenimine) (4 - 6) nanomedicine forming amphiphiles. 

Figure 27 Structure of Cy5.5- and Gd +-labeled chitosan polymer (a) and schematic representation of self-assembled nanoparticle...

Figure 4. Schematic representation of chitosan resin with embedded magnetic particle, (Donia et al., 2008).

Figure 2.13 Schematic representation of the preparation of transparent films based on BC and chitosan. Reproduced with permission from [113].

Scheme 11.1 Schematic representation of the deacetylation reaction of chitin to produce chitosan.

Figure 11.15 Schematic representation of chitosan intercalated in the clay substrate as a bilayer used in bionanocomposite-based sensors [202].

Figure 11.2 Schematic representation for qmthesis of chitosan-grafted alginate polyelectrol3fte complex hydrogels.

Fig. 11 Schematic representation of the formation of xanthan and chitosan polyelectrolyte hydrogels through mutual ionic interaction. When chitosan and xanthan are mixed, a common pH is estabhshed, and the polymer chains associate to each other. These first two steps are rapid processes, followed by slow phase separation that is referred to as coacervation. In the coacer-vation step, water molecules orient in between the polymer chains and form hydrogen bonds. When all surrounding water molecules are oriented in this fashion, a polyelectrolyte hydrogel is obtained. Reprinted from Dumitriu et al. [141]. Copyright 2004 Elsevier...

FIGURE 2.4 Schematic illustration of interaction between chitosan-.g-lactic acid, drug, and layered silicate, and drug release profile [68]. (See insertfor color representation of thefigure.)... 

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