This review is unable to examine the entire field of MFC research in detail but hopes to highlight some
important points regarding research in the field and recent important advances. Due to the shear
number of papers currently published regarding MFCs we hope that omission of many articles will not
cause offence to their authors. This review article will examine MFC’s currently in use, potential
future applications and the limitations to implementing those applications. We suggest methods for
improving the current output of a MFC. We also examine MFC applications in which microbes accept
electrons from an electrode instead of donating them. This review will hopefully highlight some of the
potential of and limitations to MFC technology implementation.