Cultivation of Exoelectrogenic Bacteria in Conductive DNA Nanocomposite Hydrogels Yields a Programmable Biohybrid Materials System
Yong Hu, David Rehnlund, Edina Klein, Johannes Gescher, Christof M. Niemeyer
Abstract
-containing composite remains stable for several days and shows electrochemical activity, indicating that the conductive backbone is capable of extracting the metabolic electrons produced by the bacteria under strictly anoxic conditions and conducting them to the anode. Programmability of this biohybrid material system is demonstrated by on-demand release and degradation induced by a short-term enzymatic stimulus. We believe that the application possibilities of such biohybrid materials could even go beyond microbial biosensors, bioreactors, and fuel cell systems.
Topics & Concepts
Shewanella oneidensisMicrobial fuel cellMaterials scienceNanocompositeBiosensorNanotechnologyBiofilmDielectric spectroscopyShewanellaCarbon nanotubeCyclic voltammetryChemical engineeringAnodeElectrochemistryElectrodeChemistryBacteriaEngineeringGeneticsPhysical chemistryBiologyMicrobial Fuel Cells and BioremediationElectrochemical sensors and biosensorsAdvanced biosensing and bioanalysis techniques