Communication

Use of Ester-Terminated Polyamidoamine Dendrimers for Stabilizing Quantum Dots in Aqueous Solutions†

  1. Jun'an Liu Dr.1,
  2. Haibing Li Dr.2,
  3. Wei Wang1,
  4. Huibi Xu Prof.3,
  5. Xiangliang Yang Prof.1,
  6. Jiangong Liang Dr.4,
  7. Zhike He Prof.4

Article first published online: 28 JUL 2006

DOI: 10.1002/smll.200500421

Issue

Small

Small

Volume 2, Issue 8-9, pages 999–1002, August 2006

Additional Information

How to Cite

Liu, J., Li, H., Wang, W., Xu, H., Yang, X., Liang, J. and He, Z. (2006), Use of Ester-Terminated Polyamidoamine Dendrimers for Stabilizing Quantum Dots in Aqueous Solutions. Small, 2: 999–1002. doi: 10.1002/smll.200500421

Author Information

  1. 1

    Institute of Materia Medica, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China, Fax: (+86) 27-8779-4517

  2. 2

    Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China

  3. 3

    Department of Chemistry, Wuhan University, Wuhan 430074, P.R. China

  4. 4

    Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China, Fax: (+86) 27-6875-4067

  1. †

    This work was supported by the National Natural Science Foundation of China (No. 20275028).

Publication History

  1. Issue published online: 28 JUL 2006
  2. Article first published online: 28 JUL 2006
  3. Manuscript Revised: 3 MAR 2006
  4. Manuscript Received: 31 OCT 2005

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Keywords:

  • bioprobes;
  • fluorescence;
  • nanomaterials;
  • polyamidoamine;
  • quantum dots

Graphical Abstract

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Probing QD stablility: A convenient solvent-evaporation approach to prepare water-soluble, biocompatible CdSe/ZnS (core/shell) quantum dots (QDs, see figure) is reported. The QDs are modified with a surfactant and polyamidoamine molecules that possess an ester terminal group. This method avoids complicated multistep ligand-exchange procedures and makes versatile QD-based probes a possibility for investigating intracellular transport and other cellular-signaling pathways.

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