A facile preparative method for Au-core, block copolymer-shell nanoparticles by UV irradiation of polystyrene-block-poly (2-vinyl pyridine)/HAuCl4 solutions.

Hui Yang, Limei Xu, Xue Li, Xiaokai Zhang

School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, People's Republic of China.

Journal of nanoscience and nanotechnology 2010 Oct

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The synthesis of gold nanoparticles (AuNPs) by UV irradiation of the solution of polystyrene-block-poly(2-vinyl pyridine)/HAuCl4 (PS-b-PVP/HAuCl4) complexes was investigated. AuNPs with block copolymer shell structures can be easily generated by simply control of the block copolymer concentration and the loading ratio of the HAuCl4 precursor. The cross-linked block copolymer shell structures were determined by transmission electron microscopy (TEM), contact angle measurement and thermogravimetic analysis (TGA). The obtained AuNPs with copolymer shells are stable in organic solvents and biochemical buffers.

Citation

Hui Yang, Limei Xu, Xue Li, Xiaokai Zhang. A facile preparative method for Au-core, block copolymer-shell nanoparticles by UV irradiation of polystyrene-block-poly (2-vinyl pyridine)/HAuCl4 solutions. Journal of nanoscience and nanotechnology. 2010 Oct;10(10):6340-7