Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Chitosan nanocomposites

Bio-nanocomposites based on calcium phosphates can perform other innovative fundions such as acting as a reservoir for the controlled release of bioadive compounds once the material is implanted in the bone defect. For instance, the incorporation of a morphogenetic protein that promotes bone regeneration in an HAP-alginate-collagen system [110] or a vitamin in a Ca-deficient HAP-chitosan nanocomposite [111] are recent examples of this kind of application. [Pg.12]

Antioxidant-potentiality of gold-chitosan nanocomposites. Colloids and Surface Science B, 32, 117-123. [Pg.188]

Chitosan/Si02 gel AOT/isooctane/chitosan/ water TMOS/H20 (0.1 M HCl or 0.1 M NaOH) Silica-chitosan nanocomposites (53)... [Pg.154]

Schematic illustration of clay and CNTs morphology in chitosan nanocomposites is shown in Figure 4.8. In the composites based on chitosan/CNTs containing 0.4 wt % CNTs, nanotubes can be well dispersed in chitosan, but no filler network could be formed due to its low concentration (Figure 4.8a). In the composites based on chitosan/clay containing 3 wt % clay, formation of 2D clay platelets network is possible (Figure 4.8b). In chitosan/clay-CNTs ternary nanocomposites, ID CNTs are confined in 2D clay platelets network, which results in a much jammed and conjugated 3D clay-CNTs network (Figure 4.8c). The interactions and networks in the system can be divided into (1) clay-clay network, (2) clay-CNTs network, (3) CNTs-polymer-clay bridging, (4) polymer-polymer network. The formation of different networks and interactions could be the main reason for the observed synergistic reinforcement of CNT and clay... Schematic illustration of clay and CNTs morphology in chitosan nanocomposites is shown in Figure 4.8. In the composites based on chitosan/CNTs containing 0.4 wt % CNTs, nanotubes can be well dispersed in chitosan, but no filler network could be formed due to its low concentration (Figure 4.8a). In the composites based on chitosan/clay containing 3 wt % clay, formation of 2D clay platelets network is possible (Figure 4.8b). In chitosan/clay-CNTs ternary nanocomposites, ID CNTs are confined in 2D clay platelets network, which results in a much jammed and conjugated 3D clay-CNTs network (Figure 4.8c). The interactions and networks in the system can be divided into (1) clay-clay network, (2) clay-CNTs network, (3) CNTs-polymer-clay bridging, (4) polymer-polymer network. The formation of different networks and interactions could be the main reason for the observed synergistic reinforcement of CNT and clay...
Figure 4.8. Schematic illustration of morphology of clay and CNTs in chitosan nanocomposites (a) chitosan/0.4% CNTs (b) chitosan/3% clay (c) chitosan/3% clay/0.4% CNTs. The interaction and networks in the system could include (1) clay-clay network (2) clay-CNTs network (3) CNTs-polymer-clay bridging (4) polymer-polymer network. Reprinted with permission from ref (42). Figure 4.8. Schematic illustration of morphology of clay and CNTs in chitosan nanocomposites (a) chitosan/0.4% CNTs (b) chitosan/3% clay (c) chitosan/3% clay/0.4% CNTs. The interaction and networks in the system could include (1) clay-clay network (2) clay-CNTs network (3) CNTs-polymer-clay bridging (4) polymer-polymer network. Reprinted with permission from ref (42).
Khan et al have used Ti02-chitosan nanocomposite film for an electrochemical immunoassay protocol. The concept has been demonstrated for a simultaneous immunoassay of rabbit-IgGs, bovine serum albumin protein, Ti02-chitosan nanocomposite film and detection limit of 7.5 mM has been obtained [86],... [Pg.224]

Mahmoodi, S., Sorkhi, L., Farrokh-Rad, M., and Shahrabi, T. (2013) Electrophoretic deposition of hydroxyapatite-chitosan nanocomposite coatings in different alcohols. Surf. Coat. Technol., 216, 106-114. [Pg.242]

Pang X, Zhitomirsky 1 (2008) Electrodeposition of hydroxyapatite-silver-chitosan nanocomposite coatings. Surf Coat Technol 202(16) 3815... [Pg.164]

H. Huang, Q. Yuan, and X. Yang, Preparation and eharacterization of metal-chitosan nanocomposites. Colloids Surf. B, 39 (2004) 31-37. [Pg.279]

X. Liu, Q. Hu, Z. Fang, X. Zhang, and B. Zhang, Magnetic chitosan nanocomposites A useful recyclable tool for heavy metal ion removal, Langmuir, 25 (2009) 3-8. [Pg.282]

X. Wang, T. Yang, Y. Feng, K. Jiao, and G. Li, A novel hydrogen peroxide biosensor based on the synergistic effect of gold-platinum alloy nanoparticles/polyaniline nanotube/chitosan nanocomposite membrane. Electroanalysis, 21, 819-825 (2009). [Pg.96]

Fig. 3.23 TEM micrographs of chitosan nanocomposites with a 2.5 wt % filler, b 5 wt % filler, c 5 wt % filler as well as acetic acid residue, and d 10 wt % filler [116]... Fig. 3.23 TEM micrographs of chitosan nanocomposites with a 2.5 wt % filler, b 5 wt % filler, c 5 wt % filler as well as acetic acid residue, and d 10 wt % filler [116]...
Sriupayo, J., Supaphol, P., Blackwell, J., Rujiravanit, R. Preparation and characterization of a-chitin whisker-reinforced chitosan nanocomposite films with ot without heat treatment. Carbohydr. Polym. 62, 130-136 (2005a)... [Pg.110]

Huang, H., Yuan, Q., Yang, X. Preparation and characterization of metal-chitosan nanocomposites. Colloid Surf.B. 39(l-2) 31-37... [Pg.114]

Van Olphen, H. Preparation and characterization of metal-chitosan nanocomposites. An introduction to clay colloid chemistry, 2nd edn. Wiley-Interscience, New York (1977)... [Pg.114]

Araki J, Yamanaka Y, Ohkawa K (2012) Chitin-chitosan nanocomposite gels reinforcement of chitosan hydrogels with rod-like chitin nanowhisktas. Polym J 44 713—717... [Pg.204]

Paluszkiewicz, C. Stodolak, E. Hasik, M. Blazewicz, M. (2011). FT-IR study of montmorillonite - chitosan nanocomposite materials, Spectrochimica Acta Part A. Vol. 79, pp. 784-788. [Pg.61]

Verma, D., Katti, KS., Katti, DR., Mohanty, B. 2008. Mechanical response and multilevel structure of bio-mimetic hydroxyapatite/polygalacturonic/chitosan nanocomposites. Materials Science Engineering C-28 399-405. [Pg.238]

Parra-Alfambra, A.M., Casero, E., Ruiz, M.A., Vazquez, L., Pariente, F., Lorenzo, E. Carbon nanotubes/pentacyaneferrate-modified chitosan nanocomposites platforms for reagentless glucose biosensing. Anal. Bioanal. Chem. 401, 883-889 (2011)... [Pg.126]

G. Zhang, X. Sun, J. Jasinski, D. Patel, A.M. Gobin, Gold/Chitosan nanocomposites with specific near infrared absorption for photothermal therapy applications. Journal of... [Pg.234]

M. Mathew, S. Suresbkumar, N. Sandhyarani, Synthesis and characterization of gold-chitosan nanocomposite and application of resultant nanocomposite in sensors. Colloids and Snrfaces B Biointerfaces 93 (2012) 143-147. [Pg.234]

Salcedo 1, Aguzzi C, Sandri G, Bonferoni MC, Mori M, Cerezo P, Sanchez R, Viseras C, Caramella C (2012) In vitro biocompatibility and mucoadhesion of montmorillonite chitosan nanocomposite a new drug delivery. Appl Clay Sci 55 131-137... [Pg.81]

Wang Y, Zhang X, Chen Y, Xu H, Tan Y, Wang S (2010) Detection of dopamine based on tyrosinase-Fe304 nanoparticles-chitosan nanocomposite biosensor. Am J Biomed Sci 2 209-216... [Pg.50]

Kavitha K, et al. Optimization of nano-titania and titania-chitosan nanocomposite to enhance biocompatibibty. Curr Nanosci 2013 9(3) 308—17. [Pg.163]

See other pages where Chitosan nanocomposites is mentioned: [Pg.72]    [Pg.84]    [Pg.173]    [Pg.27]    [Pg.90]    [Pg.104]    [Pg.182]    [Pg.183]    [Pg.67]    [Pg.844]    [Pg.84]    [Pg.85]    [Pg.348]    [Pg.525]    [Pg.533]    [Pg.84]    [Pg.105]    [Pg.105]    [Pg.38]    [Pg.50]    [Pg.50]    [Pg.135]    [Pg.299]    [Pg.13]   
See also in sourсe #XX -- [ Pg.26 ]



SEARCH



Chitosan-day nanocomposites

Chitosan/chitin nanocomposites

Nanocomposites of Microbial Cellulose and Chitosan

Polymer nanocomposites chitosan

© 2024 chempedia.info