A label free aptamer based LPG sensor for detection of mercury in aquatic solutions

Hamed Nikbakht, Hamid Latifi*, Farzaneh Ziaee

*Corresponding author for this work

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Abstract

We demonstrate a label free fiber optic sensor for detection of mercury ions in aquatic solutions. This sensor utilizes aptamers as bio-recognition element which traps mercury ions and cause a refractive index change in the vicinity of the sensor. Refractive index variations lead to a change in the transmission spectrum that can be used to calculate the concentration of mercury ions in that solution. The concentration of 1 nM mercury ions was detected which is below the specific amount determined by the US environmental protection agency as the maximum authorized contaminant level of Hg2+ ions in drinking water.

Original languageEnglish
Title of host publication24th International Conference on Optical Fibre Sensors, OFS 2015
EditorsHypolito Jose Kalinowski, Jose Luis Fabris, Wojtek J. Bock
PublisherSPIE
ISBN (Electronic)9781628418392
DOIs
Publication statusPublished - 1 Jan 2015
Externally publishedYes
Event24th International Conference on Optical Fibre Sensors, OFS 2015 - Curitiba, Brazil
Duration: 28 Sept 20152 Oct 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9634
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference24th International Conference on Optical Fibre Sensors, OFS 2015
Country/TerritoryBrazil
CityCuritiba
Period28/09/152/10/15

Keywords

  • Aptamer
  • Biosensor
  • Fiber optic sensor
  • Long period grating
  • Mercury detection

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