Hydrogel/silver nanocomposit

The crystallinity of hydrogel/silver nanocomposite could be established by diffraction studies. The formation of silver nanoparticle confirm by International Centre of Diffraction Data, ICDD, library of silver. The diffraction peaks for hydrogel/silver nanocomposites found at 26 value of 38.1°, 44.26°, 64.50°, and 77.42° are attributed due to (111], (200], (220], and (311] planes of FCC, respectively (Bajpai et al., 2013 Daniel et al., 1996 Murali Mohan et al., 2010]. Pure hydrogel failed to show any peak in the XRD indicating its amorphous nature. In order to check whether the silver nanoparticles were oxidized to silver oxide, the XRD pattern of composite after storing it for three months was compared with original one. If it has the same pattern as that of fresh hydrogel/silver nanocomposite, this indicates its stability at ambient condition. 

Thomas, V., Mural Mohan, Y., Sreedhar, B., Bajpai, S. K. (2007). A versatile strategy to fabricate hydrogel-silver nanocomposites and investigation of their antimicrobial activity. I. Colloid Interface Sci.. 315, 389-395. 

Murthy, P.S.K., Murali Mohan, Y., Varaprasad, K., Sreedhar, B., Mohana Raju, K., 2008. First successful design of semi-IPN hydrogel-silver nanocomposites a facile approach for antibacterial application. Journal of Colloid Interface Science 318, 217—224. 

Identification of Silver Particles in the Hydrogel/Metal Nanocomposite... 

Wei, Q.-B., Fu, F., Zhang, Y.-Q., Tang, L., 2014. Preparation, characterization, and antibacterial properties of pH-responsive P(MMA-co-MAA)/silver nanocomposite hydrogels. Journal of Pol3mier Research 21. 

Curcumin nanocomposite hydrogels, based on BSA and silver nanoparticles were evaluated for their capacity to inhibit bacterial cultures. The curcumin-encapsulated BSA silver nanocomposite hydrogel showed effective antibacterial activity su esting specific medical applications (Vimala et al., 2014]. 

The non-c) otoxicity of the nanocomposite system was also evaluated in the form of an alginate-chitlac silver NP hydrogel (AC-nAg) [47]. As reported in Figure 4.3,... 

Wen-Fu, L., Kai-Tai, T. (2006). Preparation and properties of nanocomposite hydrogels containing silver nanoparticles by ex situ pol nnerization. I.AddI. Polvm. Sci.. 100, 3653-3661. 

Jovanovic, Z., Jovanovic, Z., Krkljes, A., Stojkovska, J., Tomic, S., Obradovic, B., MiSkovic-Stankovic, V., Kacarevic-Popovic, Z. Synthesis and charaeterization of silver/ polyvinyl 2-pyirolidone hydrogel nanocomposite obtained in situ radiolytic method. Radiat. Phys. Chem. 80, 1208-1215 (2011)... 

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