On-line microbial biosensing and fingerprinting of water pollutants

Alison Margaret Horsburgh, David Mardlin, N. L. Turner, Rolf Henkler, Norval James Colin Strachan, Lesley Anne Glover, Graeme Iain Paton, Kenneth Stuart Killham

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The potential for biosensors to contribute to on-line toxicity testing for monitoring of water quality is currently constrained both by the relevance of the biosensors available and the technology for biosensor delivery. This paper reports the use of novel slow release biosensor delivery for on-line monitoring instrumentation, with environmentally relevant bacteria for both simple toxicity testing and more complex toxicity fingerprinting of industrial effluents. The on-line toxicity test, using bioluminescence-based biosensors, proved to be as sensitive and reliable as the corresponding batch test, with comparable contaminant EC50 values from both methods. Toxicity fingerprinting through the investigation of the kinetics (dose-response) and the dynamics (response with time) of the biosensor test response proved to be diagnostic of both effluent type and composition. Furthermore, the slow release of biosensors immobilised in a polyvinyl alcohol (PVA) matrix greatly improved biosensor delivery, did not affect the sensitivity of toxicity testing, and demonstrated great potential for inclusion in on-line monitoring instrumentation. (C) 2002 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)495-501
Number of pages6
JournalBiosensors & Bioelectronics
Volume17
Issue number6-7
DOIs
Publication statusPublished - 2002

Keywords

  • bioluminescence
  • on-line
  • toxicity
  • slow-release
  • ESCHERICHIA-COLI
  • MARKED BACTERIA
  • TOXICITY
  • IMMOBILIZATION
  • EFFLUENT
  • COPPER

Cite this

Horsburgh, A. M., Mardlin, D., Turner, N. L., Henkler, R., Strachan, N. J. C., Glover, L. A., ... Killham, K. S. (2002). On-line microbial biosensing and fingerprinting of water pollutants. Biosensors & Bioelectronics, 17(6-7), 495-501. https://doi.org/10.1016/S0956-5663(01)00321-9

On-line microbial biosensing and fingerprinting of water pollutants. / Horsburgh, Alison Margaret; Mardlin, David; Turner, N. L.; Henkler, Rolf; Strachan, Norval James Colin; Glover, Lesley Anne; Paton, Graeme Iain; Killham, Kenneth Stuart.

In: Biosensors & Bioelectronics, Vol. 17, No. 6-7, 2002, p. 495-501.

Research output: Contribution to journalArticle

Horsburgh, AM, Mardlin, D, Turner, NL, Henkler, R, Strachan, NJC, Glover, LA, Paton, GI & Killham, KS 2002, 'On-line microbial biosensing and fingerprinting of water pollutants', Biosensors & Bioelectronics, vol. 17, no. 6-7, pp. 495-501. https://doi.org/10.1016/S0956-5663(01)00321-9
Horsburgh, Alison Margaret ; Mardlin, David ; Turner, N. L. ; Henkler, Rolf ; Strachan, Norval James Colin ; Glover, Lesley Anne ; Paton, Graeme Iain ; Killham, Kenneth Stuart. / On-line microbial biosensing and fingerprinting of water pollutants. In: Biosensors & Bioelectronics. 2002 ; Vol. 17, No. 6-7. pp. 495-501.
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