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学科主题: 物理化学
题名: Composite of CdTe quantum dots and molecularly imprinted polymer as a sensing material for cytochrome c
作者: Zhang, Wei1;  He, Xi-Wen1;  Chen, Yang1;  Li, Wen-You1;  Zhang, Yu-Kui1, 2
通讯作者: 李文友
关键词: Imprinting ;  Quantum dots ;  Sensing material ;  Cytochrome c ;  Recognition
刊名: BIOSENSORS & BIOELECTRONICS
发表日期: 2011-01-15
DOI: 10.1016/j.bios.2010.11.004
卷: 26, 期:5, 页:2553-2558
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1810
产权排名: 2,5
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biophysics ;  Biotechnology & Applied Microbiology ;  Chemistry, Analytical ;  Electrochemistry ;  Nanoscience & Nanotechnology
摘要: Composite of CdTe quantum dots and molecularly imprinted polymer as a sensing material for cytochrome c
研究领域[WOS]: Biophysics ;  Biotechnology & Applied Microbiology ;  Chemistry ;  Electrochemistry ;  Science & Technology - Other Topics
英文摘要: A newly designed molecularly imprinted polymer (MIP) material was fabricated and successfully utilized as recognition element to develop a quantum dots (QDs) based MIP-coated composite for selective recognition of the template cytochrome c (Cyt). The composites were synthesized by sol-gel reaction (imprinting process). The imprinting process resulted in an increased affinity of the composites toward the corresponding template. The fluorescence of MIP-coated QDs was stronger quenched by the template versus that of non-imprinted polymer (NIP)-coated QDs, which indicated the composites could recognize the corresponding template. The results of specific experiments further exhibited the recognition ability of the composites. Under optimum conditions, the linear range for Cyt is from 0.97 mu M to 24 mu M, and the detection limit is 0.41 mu M. The new composites integrated the high selectivity of molecular imprinting technology and fluorescence property of QDs and could convert the specific interactions between imprinted cavities and corresponding template to the obvious changes of fluorescence signal. Therefore, a simple and selective sensing system for protein recognition has been realized. (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: RECOGNITION ;  NANOCRYSTALS ;  FLUORESCENCE ;  SENSOR ;  PHOTOLUMINESCENCE ;  NANOPARTICLES ;  BIOMOLECULES ;  PROTEINS ;  ANTIBODY ;  SYSTEM
语种: 英语
WOS记录号: WOS:000286904400123
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115330
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116011, Peoples R China

Recommended Citation:
Zhang, Wei,He, Xi-Wen,Chen, Yang,et al. Composite of CdTe quantum dots and molecularly imprinted polymer as a sensing material for cytochrome c[J]. BIOSENSORS & BIOELECTRONICS,2011,26(5):2553-2558.
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