A novel core-satellite CdTe/Silica/Au NCs hybrid sphere as dual-emission ratiometric fluorescent probe for Cu2+

	A novel core-satellite CdTe/Silica/Au NCs hybrid sphere as dual-emission ratiometric fluorescent probe for Cu2+
	Wang, Yan-Qin 1,2,3; Zhao, Tong 1,2; He, Xi-Wen 1,2; Li, Wen-You 1,2; Zhang, Yu-Kui 1,2,4
刊名	biosensors & bioelectronics
	2014-01-15
卷号	51 期号:1 页码:40-46
关键词	Core-satellite CdTe/Silica/Au NCs Hybrid sphere Ratiometric fluorescent probe Cu2+
通讯作者	李文友
英文摘要	herein, we synthesized a novel core-satellite cdte/silica/au ncs hybrid sphere by covalently linking the separately synthesized highly fluorescent bovine serum albumin (bsa) stabilized gold nanoclusters (au@bsa ncs) to the surface of the amino functionalized cdte@sio2 spheres by using the edc chemistry. numerous "satellites" of au ncs were linked on the surface of the cdte@sio2 by the way of amide bonding. the synthesized dual-emission hybrid spheres were further characterized by the transmission electron microscopy (tem), energy dispersive x-ray spectroscopy (eds), uv-vis absorption spectroscopy, fourier transform infrared (ftir) spectroscopy, photoluminescence (pl), etc. finally, the cdte/silica/au ncs hybrid spheres were developed as ratiometric fluorescence probe for the determination of cu2+ with high sensitivity and selectivity. the fluorescence intensity ratio (f-545 nm/f-655 mn) of the probe against the concentration of cu2+ showed a good linear relationship from 6.0 x 10(-7) mol l-1 to 100.0 x 10(-7) mol l-1. it showed an excellent reproducibility (0.67% relative standard deviation for 10 replicate measurements of cu2+ at 40.0 x 10(-7) mol l-1) and low detection limit (4.1 x 10(-7) mol l-1). furthermore, the ratiometric fluorescent probe was successfully applied in the determination of cu2+ in vegetable samples with satisfactory results. (c) 2013 elsevier b.v. all rights reserved.
学科主题	物理化学
WOS标题词	science & technology ; life sciences & biomedicine ; physical sciences
类目[WOS]	biophysics ; biotechnology & applied microbiology ; chemistry, analytical ; electrochemistry ; nanoscience & nanotechnology
研究领域[WOS]	biophysics ; biotechnology & applied microbiology ; chemistry ; electrochemistry ; science & technology - other topics
关键词[WOS]	quantum dots ; gold nanoclusters ; silica nanoparticles ; energy-transfer ; living cells ; copper ions ; clusters ; sensor ; temperature ; selectivity
收录类别	SCI
语种	英语
WOS记录号	WOS:000326905500007
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/144464]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Nankai Univ, State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China 2.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China 3.Taiyuan Univ Technol, Taiyuan 030024, Peoples R China 4.Chinese Acad Sci, Natl Chromatog Res & Anal Ctr, Dalian Inst Chem Phys, Dalian 116011, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yan-Qin,Zhao, Tong,He, Xi-Wen,et al. A novel core-satellite CdTe/Silica/Au NCs hybrid sphere as dual-emission ratiometric fluorescent probe for Cu2+[J]. biosensors & bioelectronics,2014,51(1):40-46.
APA	Wang, Yan-Qin,Zhao, Tong,He, Xi-Wen,Li, Wen-You,&Zhang, Yu-Kui.(2014).A novel core-satellite CdTe/Silica/Au NCs hybrid sphere as dual-emission ratiometric fluorescent probe for Cu2+.biosensors & bioelectronics,51(1),40-46.
MLA	Wang, Yan-Qin,et al."A novel core-satellite CdTe/Silica/Au NCs hybrid sphere as dual-emission ratiometric fluorescent probe for Cu2+".biosensors & bioelectronics 51.1(2014):40-46.