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- W2945101196 abstract "Nanothermometry methods with intracellular sensitivities have the potential to make important contributions to fundamental cell biology and medical fields, as temperature is a relevant physical parameter for molecular reactions to occur inside the cells and changes of local temperature are well identified therapeutic strategies. Here we show how the GFP can be used to assess temperature-based on a novel fluorescence peak fraction method. Further, we use standard GFP transfection reagents to assess temperature intracellularly in HeLa cells expressing GFP in the mitochondria. High thermal resolution and sensitivity of around 0.26% °C-1 and 2.5% °C-1, were achieved for wt-GFP in solution and emGFP-Mito within the cell, respectively. We demonstrate that the GFP-based nanothermometer is suited to directly follow the temperature changes induced by a chemical uncoupler reagent that acts on the mitochondria. The spatial resolution allows distinguishing local heating variations within the different cellular compartments. Our discovery may lead to establishing intracellular nanothermometry as a standard method applicable to the wide range of live cells able to express GFP." @default.
- W2945101196 created "2019-05-29" @default.
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- W2945101196 date "2019-05-17" @default.
- W2945101196 modified "2023-10-12" @default.
- W2945101196 title "GFP fluorescence peak fraction analysis based nanothermometer for the assessment of exothermal mitochondria activity in live cells" @default.
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- W2945101196 doi "https://doi.org/10.1038/s41598-019-44023-7" @default.
- W2945101196 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6525231" @default.
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