Figure 2 : Switching between synchrony and de-synchrony to switch between two kinds of in vitro processes (Also see Figure S1 online):

From: Live visualizations of single isolated tubulin protein self-assembly via tunneling current: effect of electromagnetic pumping during spontaneous growth of microtubule

Figure 2

(a). The replica of a living cell, with PCMS ion gates and heat bath at 37°C, cell dimension of Figure 2A fixed for all species (200 μm), two 200 nm ion-channels. FG is function generator, and connected circuit is the ac pumping circuit. L, E, T signals and two cables from PCMS is connected to an oscilloscope. Signals of synchrony are demonstrated on top, phase de-synchrony in the middle and amplitude de-synchrony is at the bottom. An AND gate inside SDC checks whether signals arrive at the same time, or same amplitude if “yes” we see “1” in the oscilloscope, and if “no” then “0”. (b). Growth rate is switched off by disrupting synchrony in three ways, de-synchronizing both phase and amplitude, (top), de-synchronizing only phase (middle), and desynchronizing only amplitude (bottom) by sending noise into the solution. Pink arrow shows when noise is applied to de-synchronize. Blue arrow shows when noise is off and synchrony recovers slowly. Once microtubule nucleates from tubulin, a silent mode is not distinctly visible, hence recovery to synchronise is fast. The growth rate ratio measures the ratio of the growth rate of tubulin at a density higher than the natural synchrony to the growth rate at lower tubulin density.