Facile synthesis of monodispersed silver nanoparticles on graphene oxide sheets with enhanced antibacterial activity

• Main Authors: Liu, Lei, Liu, Jincheng, Wang, Yinjie, Yan, Xiaoli, Sun, Darren Delai
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2012
• Subjects: DRNTU::Engineering::Environmental engineering::Water treatment; DRNTU::Engineering::Materials::Biomaterials
• Online Access: https://hdl.handle.net/10356/79970; http://hdl.handle.net/10220/7473
• Institution: Nanyang Technological University

Graphene oxide-Ag nanoparticle (GO-Ag) composites were synthesized through a facile two-phase 10 (toluene-water) process. Transmission Electron Microscope and X-ray diffraction analysis revealed that the Ag nanoparticles anchored on GO sheets were spherical in shape and highly monodispersed with uniform size of 6 nm. The antibacterial activity of GO-Ag composites was investigated against gram-negative bacteria Escherichia coli (E.coli) and showed a remarkably enhanced antibacterial activity compared with the original Ag nanoparticles, suggesting that the as-prepared nanocomposites may be 15 used as effective antibacterial materials