IR@PKUHSC  > 北京大学基础医学院  > 生物物理学系
学科主题基础医学
Interaction between CdSeS Quantum Dots and Gold Nanoparticles in Solution
Han Rong-Cheng1; Yu Min1; Sha Yin-Lin1,2
关键词Quantum dots Gold nanoparticles Quenching Energy transfer
刊名ACTA PHYSICO-CHIMICA SINICA
2011
DOI10.3866/PKU.WHXB20110135
27期:1页:255-261
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]ENERGY-TRANSFER ; SEMICONDUCTOR NANOCRYSTALS ; FRET ; PHOTOLUMINESCENCE ; POLYELECTROLYTE ; LUMINESCENCE ; BIOSENSORS ; POLYMER ; LABELS ; DECAY
英文摘要

We studied the interaction between CdSeS quantum dots (QDs) and gold nanoparticles (AuNPs) in solution. We found that the photoluminescence (PL) intensity of the QDs was efficiently quenched by the AuNPs with extraordinarily high Stern-Volmer quenching constant (K-sv) values that approach 10(8) L . mol(-1). The quenching efficiency is strongly related to the spectral overlap and the distance between the QDs and AuNPs and is independent of solvent polaritym, ion strength, and pH value. These results suggest that this superquenching behavior can be attributed to a long-range (Forster-type) energy transfer. Our findings allow for the design of exquisite multiple Forster resonance energy transfer (FRET)based biosensors for the highly sensitive and simultaneous monitoring of multiple molecules in live cells.

语种中文
WOS记录号WOS:000285781600037
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.bjmu.edu.cn/handle/400002259/61429
专题北京大学基础医学院_生物物理学系
北京大学基础医学院
北京大学第一临床医学院_感染疾病科
作者单位1.Peking Univ, Sch Basic Med Sci, Dept Biophys, Beijing 100191, Peoples R China
2.Peking Univ, Biomed X Ctr, Beijing 100871, Peoples R China
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Han Rong-Cheng,Yu Min,Sha Yin-Lin. Interaction between CdSeS Quantum Dots and Gold Nanoparticles in Solution[J]. ACTA PHYSICO-CHIMICA SINICA,2011,27(1):255-261.
APA Han Rong-Cheng,Yu Min,&Sha Yin-Lin.(2011).Interaction between CdSeS Quantum Dots and Gold Nanoparticles in Solution.ACTA PHYSICO-CHIMICA SINICA,27(1),255-261.
MLA Han Rong-Cheng,et al."Interaction between CdSeS Quantum Dots and Gold Nanoparticles in Solution".ACTA PHYSICO-CHIMICA SINICA 27.1(2011):255-261.
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