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Preparation and bioapplication of high-quality, water-soluble, biocompatible, and near-infrared-emitting CdSeTe alloyed quantum dots

机译:高质量,水溶性,生物相容性和近红外发射的CdSeTe合金量子点的制备和生物应用

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摘要

A facile method is developed for the preparation of high-quality, water- soluble, and near-infrared (NIR)-emitting CdSeTe alloyed quantum dots (AQdots) with L-cysteine as the capping agent. By changing the size and the composition of AQdots the photoluminescent quantum yield (QY) can reach as high as 53% and the emission color can be tuned between visible and NIR regions (580-814 nm). Furthermore, the prepared NIR-emitting AQdots have been successfully applied for HL-60 cell imaging and glucose and cholesterol assay, which demonstrates the great potential of the AQdots for biological applications.
机译:开发了一种简便的方法来制备以L-半胱氨酸为封端剂的高品质,水溶性和近红外(NIR)发射CdSeTe合金量子点(AQdots)。通过改变AQdot的大小和组成,光致发光量子产率(QY)可以高达53%,并且可以在可见光和近红外区域(580-814 nm)之间调整发射颜色。此外,制备的发射NIR的AQdot已成功用于HL-60细胞成像以及葡萄糖和胆固醇测定,证明了AQdot在生物学应用中的巨大潜力。

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