科研之友
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摘要
Quantum dots (QDs) are a kind of semiconductor nanopaticles with the radius equal to or less than the exciton Bohr radius. They have tremendous potential in the field of biology and medicine because of their unique and tunable optical properties (broad excitation spectrum, narrow emission spectrum, precise tunability of their emission peak and negligible bleaching, etc) as new fluoresent probes. Recently, because of their superiority in sensitivity, a new method based on them is introduced to analysis, and made great progress in the quantitative analysis. Here the applications of QDs in the assay of metal ions, some drugs and compounds, as well as the current research progress are reviewed according to the advanced works worldwide.
