Antimicrobial polymer-graphene-silver nanocomposite

摘要

The copolymer of styrene and methylmethacrylate containing reduced graphene oxide/silver nanoparticles (PS-PMMA/RGO/AgNPs) nanocomposite were prepared via in situ bulk polymerization method using two different preparation techniques. In the first approach, a mixture of graphene oxide (GO), styrene (S) and methylmethacrylate monomers (MMA) were polymerized using a bulk polymerization method with a free radical initiator. After the addition silver nitrate (AgNO3), the product was reduced via microwave irradiation (MWI) in presence of the reducing agent hydrazine hydrate (HH), to obtain R-(GO-(PS-PMMA))/AgNPs nanocomposite. This nanocomposite was then used to create a material that had antimicrobial properties to be used in medical devices or medical related implants.

主权项

1. An antimicrobial nanocomposite composition comprising polymerizing, by in-situ radical bulk polymerization, a first mixture of a styrene, a methyl methacrylate, and a graphene oxide; wherein the styrene and methyl methacrylate are present at a specific weight ratio of 1:1 and graphene oxide is present at 2.0 weight percent based on the weight of the styrene and methyl methacrylate, to obtain a graphene oxide polystyrene-polymethyl methacrylate (GO/PS-PMMA) composite; mixing the GO/PS-PMMA composite with hydrazine hydrate solution and a silver nitrate to form a second mixture; and treating the second mixture with microwave irradiation to obtain a reduced graphene oxide polystyrene-polymethyl methacrylate silver nanoparticle composite (R-(GO)-(PS-PMMA))AgNPs).