Abstract
We have developed a size series of unusually small, water-soluble (InAs)ZnSe (core)shell quantum dots (QDs) that emit in the near-infrared and exhibit new behavior in vivo, including multiple sequential lymph node mapping and extravasation from the vasculature. The biological utility of these fluorescent probes resulted from our intentional choice to match the semiconductor material and water-soluble ligand with a desired final hydrodynamic diameter and emission wavelength.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Animals
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Arsenicals / chemistry*
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Blood Proteins / chemistry
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Cadmium / chemistry
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Diagnostic Imaging / methods*
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Fluorescent Dyes / chemistry
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Indium / chemistry*
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Microscopy, Electron, Transmission
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Nanostructures / chemistry*
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Polyethylene Glycols / chemistry
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Protein Binding
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Quantum Dots*
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Rats
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Selenium Compounds / chemistry*
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Semiconductors
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Sentinel Lymph Node Biopsy / methods
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Spectrometry, Fluorescence
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Spectroscopy, Near-Infrared
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Thioctic Acid / analogs & derivatives
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Thioctic Acid / chemistry
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Zinc Compounds / chemistry*
Substances
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Arsenicals
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Blood Proteins
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Fluorescent Dyes
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Selenium Compounds
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Zinc Compounds
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Cadmium
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Indium
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Polyethylene Glycols
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Thioctic Acid
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dihydrolipoic acid
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indium arsenide
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zinc selenide