Water and Sustainable Development Opportunities for the Chemical Sciences: A Workshop Report to the Chemical Sciences Roundtable (2004) / Chapter Skim
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6 AquasentinelSM: Biosensors for Rapid Monitoring of Primary-Source Drinking Water
6 AquasentinelSM: Biosensors for Rapid Monitoring of Primary-Source Drinking Water
Pages 47-52
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From page 47... ...
Death is usually due to progressive pulmonary fibrosis and epithelial proliferation in the lungs (Guidelines for Canadian Drinking Water Quality, 1996~. EXPERIMENTAL Studies were performed using "as-is" freshwater samples and their naturally occurring populations of phytoplankton.
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From page 48... ...
The Clinch is the main source of drinking water supply for the city of Oak Ridge. Figures 6.2a through 6.2d show the effect of KCN, MPt, DCMU, and Paraquat, respectively, on naturally occurring algae from the Clinch River.
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From page 49... ...
A detectable effect was observed in every freshwater sample tested. CONCLUSIONS The data presented in this paper indicate that biosensors based on fluorescence induction curves of naturally occurring freshwater algae can be used to detect cyanide, methyl parathion, DCMU, and Paraquat in primary water supplies under appropriate experimental conditions.
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From page 50... ...
Oligotrophic Systems Tim Shaw, of the University of South Carolina, commented that a similar technology is used to identify nutrient limitation in coastal marine systems. He wondered whether an oligotrophic system that is already in a state of reduced FVIFmaX photochemical efficiency might influence the signal obtained with this technology.
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From page 51... ...
There are usually only slow diurnal variations. These natural variances are important to investigate in order to utilize naturally occurring biosensors such as the algae.
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From page 52... ...
Without algae, the fluorescence signal one would want to monitor would not exist. WATER AND SUSTAINABLE DEVELOPMENT Purposeful Nutrient Enhancement Vasilios Manousiouthakis, of the University of California at Los Angeles, wondered if there might be compounds that could be mixed with the maliciously placed toxin so that it would help the algae grow, and therefore have some kind of compensatory effect on the sensors and prevent the needed detection level being reached.
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