A Highly Luminescent ZnS/CdSe/ZnS Nanocrystals-Tetrapeptide Biolabeling Agent

Authors: Li, Yang; Feng, Jianghua; Daniels, Steve; Pickett, Nigel L.; O'Brien, Paul

Source: Journal of Nanoscience and Nanotechnology, Volume 7, Number 7, July 2007 , pp. 2301-2308(8)

Publisher: American Scientific Publishers

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Abstract:

Stable colloidal ZnS/CdSe/ZnS nanocrystals capped with hexadecylamine were transferred into water by encapsulation in a protective shell of an amphiphilic polymer. The properties of the products have been investigated by dynamic lighting scattering, absorption, and photoluminescence spectroscopy. These nanocrystals, when conjugated with tuftsin in aqueous suspension, formed an effective labeling reagent for macrophages or lymphocytes. The labeling of cells was demonstrated by confocal microscopy. Hybrid bio-inorganic nanoconjugates are potentially powerful fluorescent tracking tools in biological systems.

Keywords: ZNS/CDSE/ZNS NANOCRYSTALS; PHOTOLUMINESCENCE; BIOLABELING AGENT

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2007.439

Publication date: 2007-07-01

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Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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