This presentation deals with the production of electricity from microbes in a very elementary fashion. Good for those willing to understand how the whole process works, its advantages and mechanism, in a fun and interesting way.

2. Bacteria as Living batteries???

4. Ever increasing Need for ENERGY

6. No reliance on foreign oil

7. Little or no pollutants

8. No moving parts

9. No noiseFuel cells

16. Produces electrochemical redox energy

17. Renewable and sustainable energy

21. Electron Transport chain

27. Anode Usually graphite, carbon cloth/paper

29. Barrier between anodic and cathodic chambers

30. Must be permeable to charged species, reduce oxygen transfer to anodic chamber

31. Bacteria-metal reducing bacteria

32. Heterotrophic, auto heterotrophic, mixed-cultureCarbon Rod and Carbon Fiber Electrodes 20 20 20

34. As an example, Glucose is used as organic substrate Anode Cathode

40. Electro active Bacteria

42. Aeromonashydrophila

43. Pseudomonas speciesSome bacteria, which have pili on their external membrane, are able to transfer their electron production via these pili.

44. Examples of microbial-based fuel cells

46. Biosensors Aerospace applications aim to generate power and remediate pollutants from human waste aboard exploratory missions with large crews Powering electronic monitoring devices in remote locations, such as the bottom of the ocean Micro pumps-insulin, pain meds, arthritis Robotics -Studies in “Gastro bots: Autonomous robots powered by MFC’s could consume food (biomass) as seemingly limitless source of energy Current for-nerve stimulation, hearing aids Renewable and sustainable source of electricity. Portable units- power generation Heart pacemaker (cells in series) 32 32

47. 33 33

49. Hy-SyEnce Inc. (Fall River) ------ wastewater of food-processing plants IntAct Labs LLC in Cambridge ----- recycling waste products during space missions. Urine: Waste Product or Future Power Source? ----- Researchers in the UK are looking into the use of urine as the ‘fuel’ for microbial fuel cells (MFCs), which use bacterial cultures to break down ‘food’ to create power. Derek Lovley’sGeobactor Project at UMass Amherst ------ looking to create organic batteries that could one day power computers or even vehicles. Advanced Water Management Centre ------ constructed a pilot scale microbial fuel cell. The pilot scale plant was built on the site of the Foster's brewery in Yatala, Queensland (Australia). Harvard University --------- provide power for lighting and other systems in developing nations

53. Thank you!!! Questions???