DICP OpenIR
Subject Area物理化学
A novel core-satellite CdTe/Silica/Au NCs hybrid sphere as dual-emission ratiometric fluorescent probe for Cu2+
Wang, Yan-Qin1,2,3; Zhao, Tong1,2; He, Xi-Wen1,2; Li, Wen-You1,2; Zhang, Yu-Kui1,2,4; Li WY(李文友)
KeywordCore-satellite Cdte/silica/au Ncs Hybrid Sphere Ratiometric Fluorescent Probe Cu2++
Source PublicationBIOSENSORS & BIOELECTRONICS
2014-01-15
DOI10.1016/j.bios.2013.07.028
Volume51Issue:1Pages:40-46
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
WOS SubjectBiophysics ; Biotechnology & Applied Microbiology ; Chemistry, Analytical ; Electrochemistry ; Nanoscience & Nanotechnology
WOS Research AreaBiophysics ; Biotechnology & Applied Microbiology ; Chemistry ; Electrochemistry ; Science & Technology - Other Topics
WOS KeywordQUANTUM DOTS ; GOLD NANOCLUSTERS ; SILICA NANOPARTICLES ; ENERGY-TRANSFER ; LIVING CELLS ; COPPER IONS ; CLUSTERS ; SENSOR ; TEMPERATURE ; SELECTIVITY
AbstractHerein, 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.
Language英语
WOS IDWOS:000326905500007
Citation statistics
Cited Times:60[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/144464
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi WY(李文友)
Affiliation1.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
Recommended Citation
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,&李文友.(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.
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