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Mahi R Singh

Mahi R Singh

Western University, Canada


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Title: Mechanism of cancer sensing using quantum dots and metallic nanostructures

Biography

Biography: Mahi R Singh

Abstract

We study new types of the sensing mechanism for cancers sensing from quantum dots (QDs) and metallic nanoparticlernhybrids. It is well known that the metallic nanoparticles have negative electric permittivity which leads to the formationrnof new particles called surface plasmon polaritons which may generate exceptionally strong localized electromagnetic fields.rnOn the other hand quantum dotes have electronic particles called exactions. The QDs interact with surface plasmon polaritonsrnof the metallic nanoparticles. We have calculated the energy exchange between the QDs and the nanoparticles in the presencernof exciton-surface plasmon interaction. It is found that energy transfer is enhanced in the presence of the nanoparticles whenrnthe excitons and surface plasmon frequencies are resonant. The energy transfer can be switched on and off by applying thernexternal fields such as lasers or stress fields. The energy transfer can be used as sensing mechanism for cancer treatment. Thernpresent results can be used to make new types of nanoscale cancer detection devices based on these hybrid nanostructures.