A novel enzyme-mimic nanosensor based on quantum dot-Au nanoparticle@silica mesoporous microsphere for the detection of glucose
作者： Yang Li , Qiang Ma , Ziping Liu , Xinyan Wang , Xingguang Su
DOI: 10.1016/J.ACA.2014.05.027
关键词: Nanotechnology 、 Mesoporous material 、 Quantum dot 、 Photoluminescence 、 Nanoparticle 、 Mesoporous silica 、 Enzyme mimic 、 Glucose oxidase 、 Nanosensor 、 Chemistry
摘要: QD-Au NP@silica mesoporous microspheres have been fabricated as a novel enzyme-mimic nanosensor. CdTe quantum dots (QDs) were loaded into the core, and Au nanoparticles (NPs) encapsulated in outer shell. QDs NPs separated different space of nanosensor, which prevent potential energy or electron transfer process between NPs. As biomimetic catalyst, silica shell can catalytically oxidize glucose oxidase (GOx)-mimicking. The resultant hydrogen peroxide quench photoluminescence (PL) signal microsphere core. Therefore nanosensor based on decrease PL intensity was established for detection. linear range 5-200 μM with detection limit (3σ) 1.32 μM.
sci-hub.se 参考文章(37)
Paolo Beltrame, Massimiliano Comotti, Cristina Della Pina, Michele Rossi, Aerobic oxidation of glucose: II. Catalysis by colloidal gold Applied Catalysis A-general. ,vol. 297, pp. 1- 7 ,(2006) , 10.1016/J.APCATA.2005.08.029
Daniele Gerion, Fabien Pinaud, Shara C. Williams, Wolfgang J. Parak, Daniela Zanchet, Shimon Weiss, A. Paul Alivisatos, Synthesis and Properties of Biocompatible Water-Soluble Silica-Coated CdSe/ZnS Semiconductor Quantum Dots† Journal of Physical Chemistry B. ,vol. 105, pp. 8861- 8871 ,(2001) , 10.1021/JP0105488
Feng Gao, Peng Cui, Xiaoxiao Chen, Qingqing Ye, Maoguo Li, Lun Wang, A DNA hybridization detection based on fluorescence resonance energy transfer between dye-doped core-shell silica nanoparticles and gold nanoparticles Analyst. ,vol. 136, pp. 3973- 3980 ,(2011) , 10.1039/C1AN15287D
Qiang Ma, Wei Yu, Xingguang Su, Detection of Newcastle disease virus with quantum dots-resonance light scattering system Talanta. ,vol. 82, pp. 51- 55 ,(2010) , 10.1016/J.TALANTA.2010.03.056
Qiang Ma, Xingguang Su, Recent advances and applications in QDs-based sensors Analyst. ,vol. 136, pp. 4883- 4893 ,(2011) , 10.1039/C1AN15741H
Asep Bayu Dani Nandiyanto, Soon-Gil Kim, Ferry Iskandar, Kikuo Okuyama, Synthesis of spherical mesoporous silica nanoparticles with nanometer-size controllable pores and outer diameters Microporous and Mesoporous Materials. ,vol. 120, pp. 447- 453 ,(2009) , 10.1016/J.MICROMESO.2008.12.019
Anupam Samanta, Basab B Dhar, R Nandini Devi, None, Novel porous silica encapsulated Au nanoreactors as peroxidase mimic for one-pot glucose detection New Journal of Chemistry. ,vol. 36, pp. 2625- 2629 ,(2012) , 10.1039/C2NJ40665A
Seong Huh, Jerzy W. Wiench, Ji-Chul Yoo, Marek Pruski, Victor S.-Y. Lin, Organic Functionalization and Morphology Control of Mesoporous Silicas via a Co-Condensation Synthesis Method Chemistry of Materials. ,vol. 15, pp. 4247- 4256 ,(2003) , 10.1021/CM0210041
Jen-Chieh Hsu, Chih-Ching Huang, Keng-Liang Ou, Norman Lu, Fu-Der Mai, Jem-Kun Chen, Jia-Yaw Chang, Silica nanohybrids integrated with CuInS2/ZnS quantum dots and magnetite nanocrystals: multifunctional agents for dual-modality imaging and drug delivery Journal of Materials Chemistry. ,vol. 21, pp. 19257- 19266 ,(2011) , 10.1039/C1JM14652A
Xiaolong He, Longfei Tan, Dong Chen, Xiaoli Wu, Xiangling Ren, Yanqi Zhang, Xianwei Meng, Fangqiong Tang, Fe3O4-Au@mesoporous SiO2 microspheres: an ideal artificial enzymatic cascade system. Chemical Communications. ,vol. 49, pp. 4643- 4645 ,(2013) , 10.1039/C3CC40622A