Preparation and Antibacterial Activity of Amino Acid Polyoxometalate Self-assembled Multilayer Films

Chem. J. Chinese Universities ›› 2006, Vol. 27 ›› Issue (5): 801.

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Preparation and Antibacterial Activity of Amino Acid Polyoxometalate Self-assembled Multilayer Films

KONG Yu-Mei¹, PENG Jun ^1*, XUE Bo¹, PAN Li-Na², XIN ZHi-Feng¹, LI Li¹, LU Jun²

1. Key laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China;
2. Institute of Genetics and Cytology, College of Life Science, Northeast Normal University, Changchun 130024, China

Received:2006-02-23 Online:2006-05-10 Published:2006-05-10
Contact: PENG Jun ，E-mail: jpeng@nenu.edu.cn

Abstract

Abstract:

(CTA)_0.2(HGly)_2.8［PMo₁₂O₄₀］·nH₂O(1) 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. coli) were investigated. Antibacterial tests indicate that both the nanoparticles and the multilayer films exhibited an efficient antibacterial activity, and the films have more merit.

Key words: Polyoxometalate; Nanoparticle; Synthesis; Self-assembled multilayer films; Antibacterial activity

CLC Number:

O614

TrendMD:

KONG Yo-Mei, BANG Jun, XUE Bo, BO Li-Na, XIN Zhi-Feng, LI Li, LIU Jun. Preparation and Antibacterial Activity of Amino Acid Polyoxometalate Self-assembled Multilayer Films[J]. Chem. J. Chinese Universities, 2006, 27(5): 801.

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Preparation and Antibacterial Activity of Amino Acid Polyoxometalate Self-assembled Multilayer Films

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