Researchers have presented a sediment Microbial Fuel Cell (sMFC) system for remotely investigating the physiology and ecology of electrically active microbes in submerged field sites. Depending on the depth at which device components were submerged, scientists observed variation in start-up time and electricity generation.
Read more here:: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/fuel_cells/~3/cvuBwXen8c0/160620100312.htm