Fig. 4: Cellular uptake of the CDs by S. oneidensis MR-1.
From: Carbon dots-fed Shewanella oneidensis MR-1 for bioelectricity enhancement
TEM images of S. oneidensis MR-1 cells a, b before and c, d after 6 h incubation with the CDs. e, f AFM images of dehydrated pristine and CDs-fed S. oneidensis MR-1, depicting altered roughness in the presence of CDs. Scale bars in the inserts are 1 μm. g, h TEM image of a CDs-fed cell constructed using cryo-electron tomography, where the LBDs located at the different zones of the cell are marked by the solid-line circles in different colors. i, j TEM images of cross-section slices of the CDs-fed cells, where the dark clusters are assigned to accumulated LBDs.
