Microalgal fiber-optic biosensors for water quality monitoring

Guillermo Orellana; Laura Villén; David Haigh; Emilia Maneiro; Fernando Marvá; Eduardo Costas

doi:10.1117/12.738597

2 July 2007 Microalgal fiber-optic biosensors for water quality monitoring

Guillermo Orellana, Laura Villén, David Haigh, Emilia Maneiro, Fernando Marvá, Eduardo Costas

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 661921 (2007) https://doi.org/10.1117/12.738597
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

Novel fiber-optic biosensors have been developed for the analysis of pesticides in water based on Chlorophyceae microalgae immobilized into a porous silicone layer as recognition element, and on measurements of the photogenerated O₂ as chemical transducer. The inhibition of O₂ production by the photosynthetic green algae in the presence of the pesticide (simazine) was used as the biological signal. Luminescent thin films and a dedicated optoelectronic unit based on emission phase-shift measurements provide the tools for the sensitive O₂ measurements. Fluctuation analysis allows selection of sensitive and resistant microalgae mutants without genetic manipulation for maximum biosensing selectivity.

Citation Download Citation

Guillermo Orellana, Laura Villén, David Haigh, Emilia Maneiro, Fernando Marvá, and Eduardo Costas "Microalgal fiber-optic biosensors for water quality monitoring", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 661921 (2 July 2007); https://doi.org/10.1117/12.738597

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