Single-particle imaging uncovers reverse electron transfer efficiency between Shewanella oneidensis MR-1 and shaped haematite (opens in new tab)

Microbe–semiconductor hybrids hold promise for solar-to-chemical conversion, but facet-dependent interfacial charge transfer remains poorly understood due to structural heterogeneity and biological complexity. Here we leverage a multimodal optical imaging platform to probe the charge-transfer efficiency between Shewanella oneidensis MR-1 and {110}/{001}-faceted haematite, at single-particle and single-cell levels, in vivo and operando. We quantify the reverse extracellular electron-transfer c...