Creation of a fiber optic based biosensor for air toxicity monitoring

Evgeni Eltzov, Vladislav Pavluchkov, Matan Burstin, Robert S. Marks

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Most people spend a greater amount of time indoors rather than outdoors, so it follows that it's composition could directly affect occupants, thereby providing a new demand for sensors that will monitor indoor air pollution. In this paper, bioluminescent bacteria were used as bioreporters for the determination of air toxicity. Bacteria were immobilized in 96 well plates with matrices of different types and volumes, and exposed to a selection of model toxic compounds in air. TV1061 strain immobilized in alginate in wells of a microtiter plate showed the best response to a low concentration of chloroform (6.65 ppb), while US permission limits stands now at 50 ppm. This system was then adapted to the end face of a portable fiber optic biosensor, and we predict that one day it could be used as an air pollution alert system in an indoor environment.

Original languageEnglish
Pages (from-to)859-867
Number of pages9
JournalSensors and Actuators, B: Chemical
Volume155
Issue number2
DOIs
StatePublished - 20 Jul 2011

Keywords

  • Air pollution
  • Bioluminescence
  • Biosensor
  • Fiber optic

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