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学科主题: 物理化学
题名: One-pot aqueous synthesis of composition-tunable near-infrared emitting Cu-doped CdS quantum dots as fluorescence imaging probes in living cells
作者: Zhang, Fei1, 2;  He, Xi-Wen1, 2;  Li, Wen-You1, 2;  Zhang, Yu-Kui1, 2, 3
通讯作者: 李文友
刊名: JOURNAL OF MATERIALS CHEMISTRY
发表日期: 2012-11-07
DOI: 10.1039/c2jm33560c
卷: 22, 期:41, 页:22250-22257
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1810
产权排名: 2,4
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: In the last two decades, near-infrared (NIR) emitting Cu-doped quantum dots (QDs) have stimulated stupendous research interest for their excellent optical properties. Due to the synthetic method in the organic phase, almost none of the NIR emitting Cu-doped QDs were used as the fluorescent probes for biological imaging, despite being employed for applications in many fields. In this work, we successfully synthesized water-soluble Cu-doped CdS quantum dots (Cu:CdS d-dots) with an emission wavelength at 722 nm using a fast and facile hydrothermal method. The optical properties of the d-dots and several key parameters of the synthesis conditions such as dopant concentration, reaction temperature, reflux time, and especially the pH of the reaction mixture were systematically studied, and the mechanism of these parameters is also discussed. A red shift of the emission maximum as a consequence of the increased reaction temperature was observed, but it does not move to the NIR region until Cu2+ is doped even at the highest reflux temperature in aqueous solution. The d-dots have good water solubility and biocompatibility for successful labeling the living He La cells as fluorescence probe.
关键词[WOS]: ZNSE NANOCRYSTAL EMITTERS ;  NON-CADMIUM ;  L-CYSTEINE ;  NANOPARTICLES ;  LUMINESCENCE ;  EFFICIENT ;  CANCER ;  TUMORS
语种: 英语
WOS记录号: WOS:000310047200064
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118023
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, State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China
2.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
3.Chinese Acad Sci, Natl Chromatog Res & Anal Ctr, Dalian Inst Chem Phys, Dalian 116011, Peoples R China

Recommended Citation:
Zhang, Fei,He, Xi-Wen,Li, Wen-You,et al. One-pot aqueous synthesis of composition-tunable near-infrared emitting Cu-doped CdS quantum dots as fluorescence imaging probes in living cells[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(41):22250-22257.
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