Nano-graphite as New Biosensing Material for Highly Sensitive and Selective Fluorescent Detection of Silver(I) Ion in Aqueous Solution

DOI

10.2991/wartia-18.2018.11How to use a DOI?

Keywords

Nano-graphite, Highly Sensitive, Selective Fluorescent Detection

Abstract

This paper describes a novel approach utilizing nano-graphite as an effective fluorescent sensing platform for highly sensitive and selective detection of Ag+ in aqueous solution for the first time. Nano-graphite can effectively quench the fluorescence of dye-labeled cytosine-rich single-stranded DNA due to their strong π-π stacking interactions; however, Ag+ is able to specifically bind to the cytosine-cytosine (C-C) base pair in a DNA duplex, which does not adsorb on nano-graphite and thus retains the dye fluorescence. This sensing platform exhibits high selectivity and sensitivity toward Ag+ versus other metal ions with a limit of detection of 500 pm.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yin Wei
AU  - Jinling Yang
AU  - Guoqiang Shangguan
AU  - Kai Zhang
PY  - 2018/09
DA  - 2018/09
TI  - Nano-graphite as New Biosensing Material for Highly Sensitive and Selective Fluorescent Detection of Silver(I) Ion in Aqueous Solution
BT  - Proceedings of the 4th Workshop on Advanced Research and Technology in Industry (WARTIA 2018)
PB  - Atlantis Press
SP  - 51
EP  - 55
SN  - 2352-5401
UR  - https://doi.org/10.2991/wartia-18.2018.11
DO  - 10.2991/wartia-18.2018.11
ID  - Wei2018/09
ER  -