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Searched for: 1 subject found.
12.119 Harnessing Power from Environmental Microbes and Chemical Gradients
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Prereq: Biology (GIR), Chemistry (GIR), or 12.007
Units: 2-2-5
Provides practical instruction on how to make living batteries. Lectures cover the basics of marine and freshwater chemistry and biogeochemistry (pH, redox potential, organic loading, free energy for growth, chemical profiles, sampling and measurement methods). Students explore sediment biogeochemistry by analyzing mineral types and grain sizes, setting up microbial enrichment cultures, and sampling and characterizing microbes and environmental chemistry by microscopy, chemical assays of pore fluids, and bioinformatics tools. Subsequent lab activities teach students to develop and use electrochemical tools to build microbial batteries that can power light sources and instruments. Discussion and reading cover real-world applications of microbial fuel cells.
T. Bosak, E. Boyle, S. Ono
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