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23 January 2002 Advanced environmental monitoring system using ecosensor based on bilayer lipid membrane
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In recent years, we have developed an advanced environmental monitoring system (AEMS) containing the eco-sensor, which means a sensor for the measurement of environmental pollutants, based on lipid membranes for continuous monitoring of underground water in industry areas such as semiconductor factories. The AEMS project is composed of three work packages followed by 1) Eco-sensor, 2) Prediction of plume propagation using a computer simulation technique, and 3) Environmental protection method. In this presentation, we would like to focus on the study of the eco-sensor. The reason why lipid membranes were selected as a sensing element for environmental pollutants is that the pollutants should be interacted with cell membranes because cells are surrounded by cell membranes containing lipid components. Improving the applicability and the responsibility of bilayer lipid membranes (BLMs) in the eco-sensor, we have investigated the automatic BLMs preparation device. An automatic BLMs preparation device was made by use of an inkjet mechanism. The reproducibility of the BLMs preparation was remarkably improved. The sensitivity to volatile organic chloride compounds such as cis-1,2-dichloroethylene was in the order of 10 ppb using the monoolein BLMs even in real underground water. We also have been developing a smaller sized eco-sensor for the practical use.
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Yoshio Ishimori, Koichiro Kawano, Hiroshi Tamura, Nobuhiro Aoyama, Mitsuo Mouri, Takao Kase, Eiichi Tamiya, and Masaru Ishizuka "Advanced environmental monitoring system using ecosensor based on bilayer lipid membrane", Proc. SPIE 4545, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology, (23 January 2002);

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