Magnetic field enables spin matching in spin-selective pathways to enhance current in bacteria
Kathait, K.; Mishra, R.; Doyle, L. E.
Show abstract
Electroactive bacteria export metabolic electrons through cytochrome-based extracellular electron-transfer (EET) conduits. Although purified S. oneidensis EET cytochromes are chiral and spin-selective, the functional impact of chirality-induced spin selectivity in live cultures remains unknown. Here, we show that a magnetic field enhances current in live S. oneidensis. EET to non-magnetic electrodes increased by ~70 %, whereas electron uptake was insensitive to magnetic field. In contrast, electron uptake increased by >100 % when spin-polarised electrons were supplied from a magnetised electrode. This directional response suggests that magnetic field improves spin matching in the EET conduit, but only when the incoming electron flux is spin-polarised, implying that metabolic electrons are already spin-polarised before entering the conduit. Cytochromes in the conduit were downregulated despite higher current, indicating enhanced EET efficiency.
Matching journals
The top 3 journals account for 50% of the predicted probability mass.
Similar papers in this journal
Similar papers in this journal
- The differing roles of flavins and quinones in extracellular electron transfer in Lactiplantibacillus plantarum 94%
- Single-Cell Phenotyping of Extracellular Electron Transfer via Microdroplet Encapsulation 94%
- Long duration environmental biosensing by recording analyte detection in DNA using recombinase memory 93%
Similar papers in this journal
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.