title: A green approach to prepare silver nanoparticles loaded gum acacia/poly(acrylate) hydrogels.
abstract: In this work, gum acacia (GA)/poly(sodium acrylate) semi-interpenetrating polymer networks (Semi-IPN) have been fabricated via free radical initiated aqueous polymerization of monomer sodium acrylate (SA) in the presence of dissolved Gum acacia (GA), using N,N'-methylenebisacrylamide (MB) as cross-linker and potassium persulphate (KPS) as initiator. The semi-IPNs, synthesized, were characterized by various techniques such as X-ray diffraction (XRD), thermo gravimetric analysis (TGA) and Fourier transform infrared (FTIR) spectroscopy. The dynamic water uptake behavior of semi-IPNs was investigated and the data were interpreted by various kinetic models. The equilibrium swelling data were used to evaluate various network parameters. The semi-IPNs were used as template for the in situ preparation of silver nanoparticles using extract of Syzygium aromaticum (clove). The formation of silver nanoparticles was confirmed by surface plasmon resonance (SPR), XRD and transmission electron microscopy (TEM). Finally, the antibacterial activity of GA/poly(SA)/silver nanocomposites was tested against E. coli.
authors.affiliation: Polymer Research Laboratory, Department of Chemistry, Govt. Model Science College, Jabalpur, M.P. 482001, India. Electronic address: sunil.mnlbpi@gmail.com.
authors.forename: S K
authors.initials: SK
authors.lastname: Bajpai
authors.affiliation: Polymer Research Laboratory, Department of Chemistry, Govt. Model Science College, Jabalpur, M.P. 482001, India.
authors.forename: Mamta
authors.initials: M
authors.lastname: Kumari
mesh_terms: D000179:Acrylates / Q000138:chemical synthesis* / Q000494:pharmacology; D000327:Adsorption; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D045783:Clove Oil / Q000737:chemistry; D052978:Disk Diffusion Antimicrobial Tests; D004926:Escherichia coli / Q000187:drug effects; D055772:Green Chemistry Technology; D006170:Gum Arabic / Q000737:chemistry*; D020100:Hydrogels / Q000138:chemical synthesis* / Q000494:pharmacology; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry; D058105:Polymerization; D012835:Silver Nitrate / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D000179:Acrylates; D000900:Anti-Bacterial Agents; D045783:Clove Oil; D020100:Hydrogels; D006170:Gum Arabic; D012835:Silver Nitrate
keywords: Clove; Gum acacia; Silver nanoparticles; Sodium acrylate