Figure 6 : The resisto-capacitive circuit for the pLGQD-network on spore shows a linear relationship between −tan(θ) and frequency at both room humidity and vacuum, as expected (regression = 0.9955).

From: Graphene Quantum Dots Interfaced with Single Bacterial Spore for Bio-Electromechanical Devices: A Graphene Cytobot

Figure 6

The tunneling capacitance increased from 8.54 to 9.6 pF (bottom inset) upon device exposure to high vacuum from room humidity (45% rH). The top inset shows a section of the FESEM micrograph from Fig. 2 with edges mapped, presumably of pLGQDs on spore. The red arrows show a probable percolation pathway for electron transport.