Ping Li et al 2005 Nanotechnology 16 1912 doi:10.1088/0957-4484/16/9/082
Ping Li1,2, Juan Li2, Changzhu Wu1, Qingsheng Wu1,3 and Jian Li2
Show affiliationsThe bactericidal action of silver (0) nanoparticles and amoxicillin on Escherichia coli is studied, respectively. Increasing concentration of both amoxicillin (0–0.525 mg ml−1) and silver nanoparticles (0–40 µg ml−1) showed a higher antibacterial effect in Luria–Bertani (LB) medium. Escherichia coli cells have different bactericidal sensitivity to them. When amoxicillin and silver nanoparticles are combined, it results in greater bactericidal efficiency on Escherichia coli cells than when they were applied separately. Dynamic tests on bacterial growth indicated that exponential and stationary phases are greatly decreased and delayed in the synergistic effect of amoxicillin and silver nanoparticles. In addition, the effect induced by a preincubation with silver nanoparticles is examined. The results show that solutions with more silver nanoparticles have better antimicrobial effects. One hypothesized mechanism is proposed to explain this phenomenon.
87.85.Qr Nanotechnologies-design
Issue 9 (September 2005)
Received 12 January 2005, in final form 20 June 2005
Published 28 July 2005
Ping Li et al 2005 Nanotechnology 16 1912
Ryan J. Foley et al. 2008 ApJ 684 68
G Winter et al 2008 J. Phys.: Condens. Matter 20 304218
G Winter et al 2006 New J. Phys. 8 125
W L Barnes 2009 J. Opt. A: Pure Appl. Opt. 11 114002
George Zoriniants and William L Barnes 2008 New J. Phys. 10 105002
William L Barnes 2006 J. Opt. A: Pure Appl. Opt. 8 S87
Andrea Hamilton et al 2008 J. Phys. D: Appl. Phys. 41 212002
M Grupp et al 2007 J. Phys. B: At. Mol. Opt. Phys. 40 2703
Katsuhiro Tomioka et al 2009 Nanotechnology 20 145302