Synthesis of water-dispersible fluorescent, radio-opaque, and paramagnetic CdS:Mn/ZnS quantum dots: a multifunctional probe for bioimaging |
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Authors: | Santra Swadeshmukul Yang Heesun Holloway Paul H Stanley Jessie T Mericle Robert A |
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Institution: | Department of Neurological Surgery, University of Florida, P.O. Box 100265, Gainesville, FL 32610, USA. ssantra@erc.ufl.edu |
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Abstract: | Ultra-small (3.1 nm) multifunctional CdS:Mn/ZnS core-shell semiconductor quantum dots (Qdots), which possess fluorescent, radio-opacity, and paramagnetic properties, have been shown here. To demonstrate in vivo bioimaging capability, a rat was administered endovascularly with Qdots conjugated with a TAT peptide. The labeling efficacy of these Qdots was demonstrated on the basis of the histological analysis of the microtome sliced brain tissue, clearly showing that TAT-conjugated Qdots stained brain blood vessels. |
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