Compact Cysteine-Coated CdSe(ZnCdS) Quantum Dots for in Vivo Applications
Journal of the American Chemical Society2007Vol. 129(47), pp. 14530–14531
Citations Over TimeTop 1% of 2007 papers
Abstract
We have developed a versatile nanoparticle construct using a compact cysteine coating on a CdSe(ZnCdS) core(shell) nanocrystal (QD-Cys) that is biologically compatible, exceptionally compact, highly fluorescent, and easily functionalized. The small hydrodynamic diameter of QD-Cys ( approximately 6 nm) allows for renal clearance of these nanoparticles in rat models. Moreover, the ability to directly conjugate to QD-Cys opens up the possibility of functionalized nanocrystals for in vivo targeted imaging, in which small targeting molecules can be appended to QD-Cys, and unbound QDs can be rapidly cleared to achieve high signal/noise ratios and to reduce background toxicity.
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