Quenching luminescense of CdZnSeS/ZnS quantum dots with doxorubicin: an insight into quenching mechanism

Abstract

The development of analytical systems based on luminescence quenching gives opportunity to get highly sensitive and selective methods for determining various compounds. An important part in developing of such analytical systems is understanding of the interaction between luminophore and quencher, since it allows to get better insight into quenching mechanism and, thus, enhance the performance of analytical system. Luminescence quenching occurs due to intermolecular interactions, formation of chemical bonds or energy/electron transfer depending on the nature of the particles. Primarily luminescence quenching divided into static and dynamiс or both of them – combined mechanism. In our work CdZnSeS/ZnS quantum dots coated with thioglycolic and mercaptopropionic acids were used as a luminophore and thus act as a nanosensor in experimental analytical system for determining the quencher – anthracycline antibiotic doxorubicin.

Speaker

Kornilov Danila
Saratov State University
Russian Federation

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