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)4·9H2O (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-Gly-PMo12/PEI}n films were also prepared (PEI = polyethyleneimine) and their antibacterial activity was studied which exhibited potential of solid antimicrobial.