Development of fluorescence oligonucleotide probes based on cytosine- and guanine-rich sequences

July 9, 2020

Title

Development of fluorescence oligonucleotide probes based on cytosine- and guanine-rich sequences

Author

Anna Dembska, Angelika Świtalska, Agnieszka Fedoruk-Wyszomirska, Bernard Juskowiak

Year

2020

Journal

Scientific Reports

Abstract

The properties of cytosine- and guanine-rich oligonucleotides contributed to employing them as sensing elements in various biosensors. In this paper, we report our current development of fluorescence oligonucleotide probes based on i-motif or G-quadruplex forming oligonucleotides for cellular measurements or bioimaging applications. Additionally, we also focus on the spectral properties of the new fluorescent silver nanoclusters based system (ChONC12-AgNCs) that is able to anchor at the Langmuir monolayer interface, which is mimicking the surface of living cells membrane.

Instrument

V-750, FP-8200, J-820

Keywords

Circular dichroism, DNA structure, Chemical stability, Absorption, Fluorescence, G-quadruplex structure, Nanostructures, Materials, Biochemistry