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CdTe量子点的合成及作为离子荧光探针的应用 被引量:3

Synthesis and Spectral Application of Functionalized CdTe Quantum Dots as Fluorescence Probe
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摘要 以巯基乙酸为修饰剂,在水相中制备稳定的CdTe量子点,利用单因素法和正交试验设计研究了pH值、反应时间、反应温度、反应物浓度比等合成条件对CdTe量子点荧光光谱性质的影响。以CdTe量子点为荧光探针,探讨了Hg2+离子与量子点的荧光猝灭作用:在pH6.24的KH2PO4-Na2HPO4缓冲溶液中,Hg2+离子浓度在10~150 ng/mL范围与量子点荧光猝灭强度呈现良好的线性关系,相关系数r=0.994 5,检出限8.7 ng/mL,CdTe纳米荧光探针可用于Hg2+等的测定。 The water-soluble CdTe nanoparticles can be synthesized as stabilizer.Absorption and fluorescence spectra of CdTe nanoparticles for different pH values,reaction times and temperature,different KHTe/Cd2+ ratios are investigated.Fluorescence quenching is observed between trace Hg2+ ions and the functionalized CdTe nanoparticles with phosphoric acid as buffer solution.The response is linearly proportional to the concentration of Hgions from 10 to 150 ng/mL,with correlation coefficient r=0.994 5,detection limit 8.7 ng/mL.The functionalized nanoparticles are hopeful of use as fluorescence probes in detecting Hg2+and other environmental endocrine disruptors.
作者 那佳 侯明
出处 《桂林工学院学报》 北大核心 2010年第1期133-136,共4页 Journal of Guilin University of Technology
基金 广西自然科学基金资助项目(桂科自0728218 0679005) 广西研究生教育创新计划资助项目(2009105960703M17)
关键词 CDTE量子点 合成 Hg2+ 荧光探针 CdTe quantum dots synthesis Hg2+ fluorescence probe
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  • 1傅晓源,陈富韬,张浩伟,丁诚,谢灏,彭锴,张阳德.量子点在叶酸偶联白蛋白纳米粒靶向肿瘤细胞研究中的应用[J].中国现代医学杂志,2008,18(23):3418-3420. 被引量:4
  • 2何艺,李树伟,潘建章,王小红,李小燕,曾鸣.依诺沙星在胶束体系中的荧光特性及分析方法[J].西南民族大学学报(自然科学版),2005,31(1):54-56. 被引量:7
  • 3潘建章,李树伟,何艺,苏小东,王小红.铽-司帕沙星荧光体系的研究及应用[J].四川师范大学学报(自然科学版),2005,28(1):98-100. 被引量:7
  • 4赵学武,郭常川,王磊,桑立红.司帕沙星-铕荧光体系的研究及其在分析中的应用[J].化学分析计量,2007,16(4):24-25. 被引量:1
  • 5Wang F, Han Y, l,im C S, et al. Simultaneous phase and size control of upconversion nanocrystals through lanthanide doping [J]. Nature, 2010, 463: 1061-1065.
  • 6Muhr V, Wilhelm S, Hirsch T, et al. Upconversion nanoparti- cles: From hydrophobic to hydrophilic surfaces [J]. Accounts of Chemical Research, 2014, 47 (12) : 3481 - 3493.
  • 7Liang X, Wang X, Zhuang J, et al. Synthesis of NaYF nano- crystals with predictable phase and shape [ J ]. Advanced Functional Materials, 2007, 17 (15): 2757-2765.
  • 8Li C X, Lin J. Rare earth fluoride nano-/microcrystals: Syn- thesis, surface modification and application [ J ]. Journal of Materials Chemistry, 2010, 20 (33) : 6831 -6847.
  • 9Zhou L, He B Z, Huang J C, et al. Muhihydroxy dendritic upconversion nanoparticles with enhanced water dispersibility and surface functionality for bioimaging [ J ]. ACS Applied Materials Interfaces, 2014, 6 (10) : 7719 -7727.
  • 10Boyer J C, Manseau M P, Murray J I, et al. Surface modifica- tion of upconverting NaYF4 nanoparticles with PEG - phosphate ligands for NIR (800 nm ) biolabeling within the biological window [J]. Langmuir, 2010, 26 (2): 1157- 1164.

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