Fast Synthesis of CU2O Hollow Microspheres and Their Application in DNA Biosensor of Hepatitis B Virus

被引：164

作者：

Zhu, Haitao ^{[1
,2
]}

Wang, Jixin ^{[1
,2
]}

Xu, Guiyun ^{[3
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China

[2] Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China

[3] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China

来源：

CRYSTAL GROWTH & DESIGN | 2009年 / 9卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ROOM-TEMPERATURE SYNTHESIS; SOLUTION-PHASE SYNTHESIS; ONE-POT SYNTHESIS; COPPER NANOPARTICLES; ETHYLENE-GLYCOL; METHYLENE-BLUE; SOLUTION ROUTE; TEMPLATE; SPHERES; NANOSPHERES;

D O I：

10.1021/cg801006g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Well dispersed Cu2O hollow microspheres consisted of Cu2O nanoparticles were quickly synthesized in aqueous solution at room temperature (25 degrees C) with polyvinylpyrrolidone (PVP) as surfactant. The influences of the reaction time, PVP amount and pH value of NaOH solution were studied. The formation mechanism of Cu2O hollow spheres is that, with the modification and steric effect of PVP molecules, Cu2O nanoparticles aggregate to form loose aggregations and then quickly transform to hollow spheres through Ostwald ripening. Formation of loose aggregations is the key to the fast synthesis of hollow spheres at low temperature. The application of Cu2O hollow microspheres in DNA biosensor was also investigated. The hollow Cu2O microspheres greatly enhance the immobilization of the DNA probe on the electrode surface and improve the sensitivity of DNA biosensors.

引用

页码：633 / 638

页数：6

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