Preparation and antibacterial activity of amino acid polyoxometalate self-assembled multilayer films

作者：Kong YM; Peng J^*; Xue B; Pan LN; Xin ZF; Li L; Lu J

来源：Chemical Journal of Chinese Universities, 2006, 27(5): 801-804.

• polyoxometalate
• nanoparticle
• synthesis
• self-assembled multilayer films
• antibacterial activity

(CTA)(0.2)(HGly)(2.8)[PMo12O40]center dot nH(2)O nanoparticles (nano-1) with an average diameter of 30 nm were prepared by using reverse micelles under mild hydrothermal conditions and characterized by TEM (HRTEM) IR, XRD, XPS and CV. To enhance the application of the nanoparticles, multilayer films of nano-1 and polycation polyethyleneimine (PEI) were prepared by the layer-by-layer (LBL) self-assembled technique. UV-Vis spectroscopy was used to monitor the layer-by-layer assembling process of the films which were also verified by CV. The antibacterial activities of the nanoparticles and the as-prepared multilayer films against Escherichia coli(E. colt) were investigated. Antibacterial tests indicate that both the nanoparticles and the multilayer films exhibited an efficient antibacterial activity, and the films have more merit.

• 出版日期2006-5-10
• 单位东北师范大学