Microorganism-Mediated Fabrication and Antibacterial Performance of Ag/α-Al₂O₃ Composites

Title:Microorganism-Mediated Fabrication and Antibacterial Performance of Ag/α-Al₂O₃ Composites

Volume: 10 Issue: 2

Author(s): Huimei Chen, Lijuan Zhang, Odoom-Wubah Tareque, Jiale Huang, Huixuan Wang, Mouxing Fu, Daohua Sun and Qingbiao Li

Affiliation:

Keywords: Biosynthesis, Corynebacterium sp., microorganism, silver nanoparticles.

Abstract: In this paper, Ag/α-Al₂O₃ composites were fabricated from biosynthesized AgNPs, and their antibacterial performance against S. aureus and E. coli was investigated. Ag NPs with sizes 18.0±5.6 nm were produced through the rapid reduction of [Ag(NH₃)₂]⁺with dried Corynebacterium sp. SH09 assisted by [OH^-]. The AgNPs were completely immobilized onto α-Al₂O₃ after calcination at 200 ^oC without aggregation. Both the biosynthesized AgNPs and Ag/α-Al₂O₃ composites exhibited good and rapid antibacterial abilities on S. aureus and E. coli. The Ag/α-Al₂O₃ composites loaded 1 wt.% Ag killed 100% of E. coli and S. aureus after contact time of 30 s and 5 min, respectively.

Cite this article as:

Chen Huimei, Zhang Lijuan, Tareque Odoom-Wubah, Huang Jiale, Wang Huixuan, Fu Mouxing, Sun Daohua and Li Qingbiao, Microorganism-Mediated Fabrication and Antibacterial Performance of Ag/α-Al₂O₃ Composites, Current Nanoscience 2014; 10 (2) . https://dx.doi.org/10.2174/15734137113096660108