Fig. 2. SEM micrographs of vertically-aligned silicon nanowires interfacing the bacteria E. coli. (a) Side-projection of single bacterial cell on nanowires, scale bar: 200 nm. (b) Top-down view of E. coli on nanowires (imaged at 30°, with no tilt correction), scale bar: 1 μm. (c) E. coli on flat silicon chip (imaged at 30°, with no tilt correction), scale bar: 1 μm.
