Biogenic synthesis and characterization of ZnO nanoparticles/hydrogel composite

J.A. Lara-Rodriguez, R. Álvarez-García, B.E. Jaramillo-Loranca, X. Tovar-Jiménez, M.G. Yáñez-Cruz, V.P. Camargo-Pérez, M. Villanueva-Ibáñez

Polytechnic University of Pachuca/Department of Biotechnology

There is a growing interest in the development of hydrogels (HGs) in different research fields because they are a unique class of three-dimensional crosslinked polymers that can contain a wide variety of aqueous solvents and biological fluids. Common HGs are based on polyacrylamide and acrylate, and despite the benefits, these polymers are not biodegradable. An alternative is the use of biopolymers; however, its mechanical properties are poor and limit its applications. For this reason, they are combined with other natural or synthetic polymers or fillers are added, forming composites with improved properties. The incorporation of nanostructures in this type of material is interesting due to its size and surface behavior, currently some nanofillers have already been incorporated to improve mechanical resistance, such as clays, silica nanoparticles, among others. In this work, we propose to use biogenic ZnO nanoparticles, which have shown good physical, optical and antimicrobial properties, for their addition in HG of carboxymethylcellulose. The synthesis and characterization of the composite by Raman microscopy, scanning electron microscopy, IR spectrophotometry, as well as its swelling kinetics are presented.



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