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. 2020 Aug 12;10(8):97. doi: 10.3390/bios10080097

Figure 5.

Figure 5

The device under three different conditions: (a) in the dark, in which O2− atoms (red circles) were adsorbed on the surface of the NW film; (b) under UV illumination where O2 atoms were desorbed; (c) the device covered in a solution containing GLU, where O2 atoms were desorbed and –OH atoms (green circles) then interacted with the surface film. Arrows indicate which chemical–physical reaction took place in the process.