22 March 2012 Graphene produced from microorganisms in river Graphene produced from microorganisms in river Researchers have developed an innovative method for producing high quality graphene by reducing oxide flakes using easily extractable microorganisms from a river. The technique paves the way for large scale production of graphene. Currently, the chemical reduction of graphene oxide (GO) flakes is the preferred choice for mass production. Notably, the critical stage of reducing GO flakes into the 2D layers of carbon involves exposure of the GO to hydrazine. However, this reduction process limits the potential for large scale production, mainly because the vapour is highly toxic. The new method has been developed by the Toyohashi Tech Graphene Research Group and was inspired by a recent report that graphene oxide behaves as a terminal electron acceptor for bacteria. This revealed that the GO is reduced by microbial action in the process of breathing or electron transport. The team from Toyohashi adopted a hybrid approach, where chemically derived graphene oxide flakes were reduced by readily available microorganisms extracted from a nearby river bank. According to the researchers, Raman scattering measurements showed that the GO flakes had indeed been reduced. Author Chris Shaw Comment on this article Websites http://www.tut.ac.jp/english/ Companies Findlay Media Ltd This material is protected by Findlay Media copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team. Enjoy this story? People who read this article also read... Alternative back-up power With outdoor events like concerts, events and festivals now ... Read Article NIDays 2013 NIDays is a technical conference designed specifically for ... Read Article Southern Manufacturing This year, Southern Manufacturing and Electronics is set to be ... Read Article Microcontrollers deliver ... Microchip has launched what it describes as the 'world's lowest ... Read Article What you think about this article: Add your comments Name Email Comments Your comments/feedback may be edited prior to publishing. Not all entries will be published. Please view our Terms and Conditions before leaving a comment.