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Thermal sensing with CdTe/CdS/ZnS quantum dots in human umbilical vein endothelial cells

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Abstract

An experimental methodology is presented to measure the temperature variation in cells with the usage of CdTe/CdS/ZnS core/shell/shell quantum dots as nanothermometers. The photoluminescence spectral shifts from the endocytosed quantum dots were measured and analyzed to show heat generation in the human umbilical vein endothelial cell following Ca2+ stress. Cytotoxicity evaluation has demonstrated the CdTe/CdS/ZnS QDs are biocompatible to cells. The measured data show that the thermal sensibility of the core/shell/shell nanocrystals has been calibrated and has a linear correlation of 0.16 nm °C−1 along with temperature variation. The photoluminescence spectral shift of QD uptake in the cell indicates a thermogenesis of 3.125 °C.

Graphical abstract: Thermal sensing with CdTe/CdS/ZnS quantum dots in human umbilical vein endothelial cells

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Publication details

The article was received on 28 Jul 2017, accepted on 17 Oct 2017 and first published on 18 Oct 2017


Article type: Paper
DOI: 10.1039/C7TB02016C
Citation: J. Mater. Chem. B, 2017, Advance Article
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    Thermal sensing with CdTe/CdS/ZnS quantum dots in human umbilical vein endothelial cells

    X. Jiang, B. Q. Li, X. Qu, H. Yang and H. Liu, J. Mater. Chem. B, 2017, Advance Article , DOI: 10.1039/C7TB02016C

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