Team:Harvard

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 Alain Viel, Orianna Bretschger, Daad Saffarini, Helen White, Remy Chait, Natalie Farny, Christina Agapakis, Jason Lohmueller, Kim de Mora, Colleen Hansel, Peter Girguis, Christopher Marx, George Church, Jagesh V. Shah, Pam Silver, Tamara Brenner, Harvard BioLabs

  Our project sought to combine the detecting capabilities of bacteria with the speed and ubiquity of electricity by creating an inducible system in Shewanella oneidensis MR-1 with an electrical output, allowing for the direct integration of this biosensor with electrical circuits via microbial fuel cells.

  Shewanella oneidensis MR-1 (fondly referred to as Shewie) is a metabolically versatile, and genetically tractable, gram- negative facultative anaerobe which under anaerobic conditions reduces a number of electron acceptors. This ability can be harnessed by microbial fuel cells to produce an electric current.    The broad goal of our project was to engineer S. Oneidensis to produce a detectable change in electric current in response to some environmental stimulus. In order to observe such a reaction, our first task was to design an environment capable of housing bacteria and measuring current production. The answer? Microbial fuel cells. 

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