2022
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 interface
2020
Direct observation of anisotropic growth of water films on minerals driven by defects and surface tension
Yalcin SE, Legg BA, Yeşilbaş M, Malvankar NS, Boily JF. Direct observation of anisotropic growth of water films on minerals driven by defects and surface tension. Science Advances 2020, 6: eaaz9708. PMID: 32832658, PMCID: PMC7439304, DOI: 10.1126/sciadv.aaz9708.Peer-Reviewed Original ResearchMineral nanoparticlesWater filmAmplitude-modulated atomic force microscopyAtomic force microscopyFilm surface energySmooth film surfaceNanoscale topographyForce microscopySurface tensionWater vaporNanoparticlesMolecular simulationsAnisotropic growthHigh surface tensionSurface energyFilm surfaceThick filmsInhomogeneous thicknessThick meniscusFilm growthFilmsWater layerIce nucleationAtmospheric processesElement cycling