title: Preparation and characterization of BC/PAM-AgNPs nanocomposites for antibacterial applications.
abstract: In this work, a bacterial cellulose/polyacrylamide (BC/PAM) double network composite was prepared to act as the template for in situ synthesis of silver nanoparticles (AgNPs). Effects of reaction conditions of the BC/PAM composite were investigated on its microstructure, mechanical properties and thermal stabilities. Both the BC/PAM composite and pure BC were utilized to prepare the corresponding silver impregnated nanocomposites, i.e., BC/PAM-AgNPs and BC-AgNPs, by an environmental friendly method, UV irradiation. The influences of the templates were investigated on the AgNPs formation and the antibacterial activities of the nanocomposites by both the zone of inhibition and dynamic shake flask methods. It was shown that the BC/PAM composite displayed a denser microstructure and higher thermal stabilities than pure BC. The BC/PAM-AgNPs nanocomposite exhibited a bigger particle size and lower mass content of AgNPs than the BC-AgNPs one. For the antibacterial test, two nanocomposites exhibited a close antibacterial effect, with a high log reduction above 3 and killing ratio above 99.9%, respectively.
authors.affiliation: College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, North Ren Min Road No. 2999, Shanghai 201620, PR China; Key Laboratory of Science & Technology of Eco-Textile, Donghua University/Jiangnan University, Ministry of Education, Shanghai 201620, PR China. Electronic address: gyang@dhu.edu.cn.
authors.forename: Guang
authors.initials: G
authors.lastname: Yang
authors.affiliation: College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, North Ren Min Road No. 2999, Shanghai 201620, PR China.
authors.forename: Caixia
authors.initials: C
authors.lastname: Wang
authors.affiliation: College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, North Ren Min Road No. 2999, Shanghai 201620, PR China. Electronic address: fhong@dhu.edu.cn.
authors.forename: Feng
authors.initials: F
authors.lastname: Hong
authors.affiliation: College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, North Ren Min Road No. 2999, Shanghai 201620, PR China.
authors.forename: Xuexia
authors.initials: X
authors.lastname: Yang
authors.affiliation: College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, North Ren Min Road No. 2999, Shanghai 201620, PR China.
authors.forename: Zhangjun
authors.initials: Z
authors.lastname: Cao
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D002482:Cellulose / Q000737:chemistry*; D015169:Colony Count, Microbial; D041822:Gluconacetobacter xylinus / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry; D013211:Staphylococcus aureus / Q000187:drug effects / Q000254:growth & development; D000099166:Polyacrylamides
chemical_list: D000180:Acrylic Resins; D000900:Anti-Bacterial Agents; D002482:Cellulose; D000099166:Polyacrylamides
keywords: Antibacterial activity; Bacterial cellulose; Polyacrylamide; Silver nanoparticles; Template synthesis