Issues underlying use of biosensors to measure metal bioavailability

Christopher Rensing, Raina Margaret Maier

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

Heavy metal-mediated toxicity in the environment is dependent on bioavailable metal concentrations both internal and external to microbial cells. Both internal and external metal bioavailability are influenced by multiple factors in the soil environment. External factors include pH, redox potential, ionic strength, organic matter and clay content. The internal bioavailable metal concentration is dependent on both the aforementioned external factors, as well as metal uptake and efflux activities that are specific for each microorganism. The metal-specific biosensors discussed in this article can be used to measure internal metal bioavailability.

Original languageEnglish (US)
Pages (from-to)140-147
Number of pages8
JournalEcotoxicology and Environmental Safety
Volume56
Issue number1
DOIs
StatePublished - Sep 2003

Fingerprint

Biosensing Techniques
Biosensors
Biological Availability
bioavailability
Metals
metal
redox potential
Heavy Metals
Ionic strength
Microorganisms
Biological materials
Osmolar Concentration
Heavy metals
Oxidation-Reduction
Toxicity
Clay
Soil
microorganism
heavy metal
toxicity

Keywords

  • Bioavailability
  • Biosensor
  • Efflux
  • Heavy metals
  • Transition metals
  • Uptake

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Science(all)

Cite this

Issues underlying use of biosensors to measure metal bioavailability. / Rensing, Christopher; Maier, Raina Margaret.

In: Ecotoxicology and Environmental Safety, Vol. 56, No. 1, 09.2003, p. 140-147.

Research output: Contribution to journalArticle

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