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Compact Quantum Dots for Single-molecule Imaging
Published on: October 9, 2012
Aqueous synthesis and characterization of TGA-capped CdSe quantum dots at freezing temperature
Qizhuang Sun1, Shasha Fu, Tingmei Dong
1College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.
Molecules (Basel, Switzerland)
|July 13, 2012
Abstract:
CdSe quantum dots (QDs) have traditionally been synthesized in organic phase and then transferred to aqueous solution by functionalizing their surface with silica, polymers, short-chain thiol ligands, or phospholipid micelles. However, a drastic increase in the hydrodynamic size and biotoxicity of QDs may hinder their biomedical applications. In this paper, the TGA-capped CdSe QDs are directly synthesized in aqueous phase at freezing temperature, and they prove to possess high QY (up to 14%).
