title: Novel-porous-Ag0 nanocomposite hydrogels via green process for advanced antibacterial applications.
abstract: Silver nanoparticles (NPs) antibacterial characteristics were depends on its particle stabilization, particles size and nucleation agent. In this study, we report on green process of porous silver nanocomposite hydrogels for advanced antibacterial applications. The porous poly(acrylamide) (PAM) hydrogels were developed employing sucrose as porogenator. Silver NPs were nucleated with natural biomass Neem (Azadirachta indica) leaf extracts within the porous hydrogel networks. The formation of silver NPs in the porous hydrogels was confirmed by ultraviolet-visible spectroscopy, fourier transform infrared spectroscopy, X-ray diffraction, and thermo gravimetric analysis. Morphological studies done by scanning electron microscopy and transmission electron microscopy showed that the hydrogels were porous in nature and stabilization of NPs, size, and particles shape. The porous PAM silver nanoparticle hydrogels demonstrated excellent antimicrobial activity with significant effect against Escherichia coli, Micrococcus, and Candida albicus. Hence, it was clear that the developed hydrogels can be used effectively for preventing and treating infections.
authors.affiliation: Composites Research Group, Department of Mechanical Engineering, Durban University of Technology, Durban, South Africa.
authors.forename: Kanikireddy
authors.initials: K
authors.lastname: Vimala
authors.forename: K
authors.initials: K
authors.lastname: Kanny
authors.forename: Kokkarachedu
authors.initials: K
authors.lastname: Varaprasad
authors.forename: N Mithil
authors.initials: NM
authors.lastname: Kumar
authors.forename: G S M
authors.initials: GS
authors.lastname: Reddy
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D031601:Azadirachta / Q000737:chemistry; D002176:Candida albicans / Q000254:growth & development; D004926:Escherichia coli / Q000254:growth & development*; D020100:Hydrogels / Q000737:chemistry / Q000494:pharmacology; D053768:Metal Nanoparticles / Q000737:chemistry*; D008837:Micrococcus / Q000254:growth & development*; D053761:Nanocomposites / Q000737:chemistry*; D016062:Porosity; D012834:Silver / Q000737:chemistry / Q000494:pharmacology; D000099166:Polyacrylamides
chemical_list: D000180:Acrylic Resins; D000900:Anti-Bacterial Agents; D020100:Hydrogels; D012834:Silver; D000099166:Polyacrylamides
keywords: Azadirachta indica; antimicrobial activity; green processing; poly(acrylamide); silver nanoparticle