Microbial biofilms as living photoconductors due to ultrafast electron transfer in cytochrome OmcS nanowires
Neu J, Shipps CC, Guberman-Pfeffer MJ, Shen C, Srikanth V, Spies JA, Kirchhofer ND, Yalcin SE, Brudvig GW, Batista VS, Malvankar NS. Microbial biofilms as living photoconductors due to ultrafast electron transfer in cytochrome OmcS nanowires. Nature Communications 2022, 13: 5150. PMID: 36071037, PMCID: PMC9452534, DOI: 10.1038/s41467-022-32659-5.Peer-Reviewed Original ResearchConceptsUltrafast electron transferElectron transferPhotoconductive atomic force microscopyFemtosecond transient absorption spectroscopyQuantum dynamics simulationsMicrobial electron transferAtomic force microscopyTransient absorption spectroscopyValue-added chemicalsIndividual nanowiresWhole-cell catalysisPhotoconductive materialForce microscopyCarrier densityCatalytic performanceNanowiresAbsorption spectroscopyPhotoactive proteinsEfficient productionPhotoconductorsSynthetic photosensitizersDynamics simulationsGeobacter sulfurreducensBiodegradable materialsElectronic interfaceProtein nanowires with tunable functionality and programmable self-assembly using sequence-controlled synthesis
Shapiro DM, Mandava G, Yalcin SE, Arranz-Gibert P, Dahl PJ, Shipps C, Gu Y, Srikanth V, Salazar-Morales AI, O’Brien J, Vanderschuren K, Vu D, Batista VS, Malvankar NS, Isaacs FJ. Protein nanowires with tunable functionality and programmable self-assembly using sequence-controlled synthesis. Nature Communications 2022, 13: 829. PMID: 35149672, PMCID: PMC8837800, DOI: 10.1038/s41467-022-28206-x.Peer-Reviewed Original ResearchConceptsProtein nanowiresElectronic functionalityChemical-based synthesisConductive protein nanowiresSequence-controlled synthesisHigh electronic conductivityGold nanoparticlesSite-specific conjugationSynthetic chemistryTunable functionalityElectronic conductivityTunable propertiesAttractive biomaterialNonstandard amino acidsSynthetic biologyNanowiresBiomaterialsProtein materialSynthesisAtomic structureMost biomaterialsIncorporation of tryptophanFunctionalityConductivityNanoparticles