Microwave Synthesis of Nearly Monodisperse Core/Multishell Quantum Dots with Cell Imaging Applications

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• 作者：Huaipeng Su (1) (2) (3)
  Hengyi Xu (2)
  Shuai Gao (1)
  John David Dixon (2)
  Zoraida P. Aguilar (2)
  Andrew Y. Wang (2)
  Jian Xu (3)
  Jingkang Wang (1)
  
• 关键词：Microwave ; Semiconductor ; Quantum Dots ; Photoluminescence ; Cell labeling
• 刊名：Nanoscale Research Letters
• 出版年：2010
• 出版时间：March 2010
• 年：2010
• 卷：5
• 期：3
• 页码：625-630
• 全文大小：282KB
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• 作者单位：Huaipeng Su (1) (2) (3)
  Hengyi Xu (2)
  Shuai Gao (1)
  John David Dixon (2)
  Zoraida P. Aguilar (2)
  Andrew Y. Wang (2)
  Jian Xu (3)
  Jingkang Wang (1)
  
  1. State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People鈥檚 Republic of China
  2. Ocean NanoTech LLC, 2143 Worth Lane, Springdale, AR, 72764, USA
  3. Department of Engineering Science and Mechanics, Penn State University, University Park, PA, 16802, USA
  
• ISSN：1556-276X

文摘

We report in this article the microwave synthesis of relatively monodisperse, highly crystalline CdSe quantum dots (QDs) overcoated with Cd0.5Zn0.5S/ZnS multishells. The as-prepared QDs exhibited narrow photoluminescence bandwidth as the consequence of homogeneous size distribution and uniform crystallinity, which was confirmed by transmission electron microscopy. A high photoluminescence quantum yield up to 80% was measured for the core/multishell nanocrystals. Finally, the resulting CdSe/Cd0.5Zn0.5S/ZnS core/multishell QDs have been successfully applied to the labeling and imaging of breast cancer cells (SK-BR3).