Journal Articles Materials Today: Proceedings Year : 2016

Submicron QDs-containing Particles as Nano-thermosensors

Abstract

We have developed a facile approach to engineering ratiometric sensors nano-thermosensors (NTSs) with a core/shell structure. A layer of “smart” thermosensitive poly(N-vinylcaprolactam) doped with quantum dots (QDs) with the emission wavelength λem shell makes it possible to obtain fluorescence emission depending on temperature. QDs with a different emission wavelength λem core incorporated in the NTS core emit a reference signal which allows ratiometric temperature measurements to be performed within a nanoscale volume. It has been shown that an NTS has a high temperature sensitivity if long-wavelength QDs are located in the core of the sensor, whereas the temperature-sensitive shell contains short-wavelength QDs (λem core > λem shell). An optimally selected thermosensitive polymer has allowed us to design NTSs operating in the physiological temperature range.
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Dates and versions

hal-03112322 , version 1 (16-01-2021)

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Cite

Svetlana Sizova, Alla Generalova, Marina Tretyak, Konstantin Mochalov, Pavel Samokhvalov, et al.. Submicron QDs-containing Particles as Nano-thermosensors. Materials Today: Proceedings, 2016, 3 (2), pp.617-621. ⟨10.1016/j.matpr.2016.01.099⟩. ⟨hal-03112322⟩

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