Antibacterial and optical properties of a new water soluble CdSe quantum dots coated by multidentate biopolymer

被引：12

作者：

Bardajee, Ghasem Rezanejade ^{[1
]}

Hooshyar, Zari ^{[1
]}

Jafarpour, Farnaz ^{[2
]}

机构：

[1] Payame Noor Univ, Dept Chem, Tehran 193954697, Iran

[2] Univ Tehran, Sch Chem, Coll Sci, Tehran, Iran

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2013年 / 252卷

关键词：

Antibacterial; Biopolymer; Quantum dot; Optical property; NANOCRYSTALS; LUMINESCENT; GLUCOMANNAN; NANOPARTICLES; SALEP;

D O I：

10.1016/j.jphotochem.2012.10.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A facile approach for surface passivation of water-soluble CdSe quantum dots (CdSe QDs) by new water-soluble multidentate biopolymer based on poly ((2-dimethylaminoethyl) methacrylate) grafted onto salep (salep-g-PDMA) is devised. The transmission electron micrographs (TEM) revealed an average size of 4.5 nm for QDs. The Fourier transform infrared spectra (FT-IR) were used to ascertain the functional groups of biopolymers on the surface of QDs. The obtained QDs samples showed significant improvement in their thermal behavior as indicated by thermo gravimetric analysis (TGA). The optimum conditions regarding to monomer concentration, CdSe/salep-g-PDMA ratio and temperature were obtained to achieve the highest FL intensity of the passivated QDs. Lastly, the in vitro antibacterial properties of the obtained optimum sample were investigated against gram-negative and gram-positive bacteria. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：46 / 52

页数：7

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