Preparation and antibacterial activity of nanorod-amino acid polyoxometalates

Three nanorod-amino acid phosphomolybdates (nanorod-AA-PMo12) (HGlY)(3)[PMo12O40](Gly)(9) (nanorod-Gly-PMo12, 1), (HLys)(3) [PMo12O40] (Lys)(4) 9H(2)O (nanorod-Lys-PMo12, 2) and (HHiS)(3)[PMo12O40]-(HiS)(3)-H2O (nanorod-His-PMo12, 3), were prepared by the solvent-thermo technique, using reverse micelles as a template, and characterized by transmission electron microscopy (TEM), FT-IR spectroscopy, X-ray diffraction (XRD), cyclic voltammetry (CV), elemental analysis and thermogravimetric analysis (TGA). Antibacterial experiments of the nanorod-AA-PMo12 against Escherichia coli indicated remarkable activity. The nanorod-AA-PMo12 films were also prepared (PEI=polyethyleneimine) and their antibacterial activity was studied which exhibited potential of solid antimicrobial. (c) 2006 Elsevier B.V. All rights reserved.