Novel Synthesis of Ultra-Small Silver Nanoparticles with High Antimicrobial Activity
Ultra-small and well dispersed silver nanoparticles were prepared by mixing AgNO3 in PEI (polyethylenimine) solution. Particle size analysis and transmission electron microscopy confirmed that the average diameters of PEI/silver nanoparticles are 20-40 nm. The ultra-small silver nanoparticles had an antimicrobial activity in the aqueous solution at the concentration over 0.0105% by M.I.C test. Suggestively, the PEI/silver nanoparticles have potentials for development of wound dressings.
Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam
H.J. Lee et al., "Novel Synthesis of Ultra-Small Silver Nanoparticles with High Antimicrobial Activity ", Advanced Materials Research, Vols. 47-50, pp. 1080-1083, 2008