Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (06): 1162.doi: 10.3969/j.issn.0251-0790.2012.06.008

• Analytical Chemistry • Previous Articles     Next Articles

Electrogenerated Chemiluminescence Biosensor Based on Ru(bpy)32+ Doped Mesoporous Silica Nanoparticles

WANG Yong-Hong1,3,4, HE Xiao-Xiao1,2,4, WANG Ke-Min1,2,3,4, SU Jing1,2,4, CHEN Zhi-Feng1,2,4, YAN Gen-Ping1,3,4   

  1. 1. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China;
    2. College of Biology, Hunan University, Changsha 410082, China;
    3. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China;
    4. Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
  • Received:2011-11-18 Online:2012-06-10 Published:2012-06-10

Abstract: A novel electrogenerated chemiluminescence(ECL) sensor based on Ru(bpy)32+-doped MCM-41 mesoporous silica nanoparticles(MSN) was developed. The Ru(bpy)32+ was first loaded into the sulfhydryl modified MSN through the electrostatic absorption. Then the Ru(bpy)32+-doped MSN was immobilized onto the surface of Au electrode by Au-S interaction. The properties of electrochemistry and electrogenerated chemiluminescence(ECL) were also investigated. The amino structure of melamine is similar to tripropylamine, so we attempted to branch out the application of MCM-41 into the detection of melamine, the ECL sensor provided a new assay for the detection of melamine. Furthermore, the research provided a new approach for the immobilization of Ru(bpy)32+ onto the electrode surface.

Key words: Mesoporous silica nanoparticles, Electrogenerated chemiluminescence, Ru(bpy)32+, Melamine

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