Fabrication and antibacterial activity against Pseudomonas aeruginosa and Staphylococcus aureus of silver nanoparticle decorated reduced graphene oxide nanocomposites. (7th June 2019)

• Record Type: Journal Article
• Authors: Minh Dat, Nguyen; Linh, Vu Ngoc Phuong; Huy, Le Anh; Huong, Nguyen Thanh; Tu, Tran Hoang; Phuong, Nguyen Thi Lien; Nam, Hoang Minh; Thanh Phong, Mai; Hieu, Nguyen Huu
• Is Part Of: Materials technology. Volume 34:Number 7(2019)
• Page Start: 369
• Page End: 375
• Publication Date: 2019-06-07
• Subjects: Silver/reduced graphene oxide -- nanocomposite -- Pseudomonas aeruginosa -- Staphylococcus aureus; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.1105
• DOI: 10.1080/10667857.2019.1575555
• Languages: English
• ISSNs: 1066-7857

Abstract

ABSTRACT: In this study, silver/reduced graphene oxide (Ag/rGO) nanocomposites were synthesized by in situ method with five mass ratios of AgNO3 :GO ratio. The characterizations of GO, rGO, silver nanoparticles (AgNPs), and Ag/rGO were investigated by Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, transmission electron microscopy, and Brunauer-Emmett-Teller specific surface area. The characterization results showed that AgNPs (15–25 nm) were uniformly distributed on the rGO sheets. The antibacterial activity of Ag/rGO was tested against Pseudomonas aeruginosa and Staphylococcus aureus by optical density and plate colony-counting methods. The tests revealed that the antibacterial activity of Ag/rGO with AgNO3 :GO ratio of 2:1 was the highest. The minimal inhibitory concentration values of Ag/rGO were 12.5 and 50 µg/mL; and the minimum bactericidal concentration values were 50 and 400 µg/mL for Pseudomonas aeruginosa and Staphylococcus aureus, respectively. Accordingly, the obtained Ag/rGO nanocomposite could be considered as a potential antibacterial agent.