Figure 1: Transient signal generation.
From: Transient signal generation in a self-assembled nanosystem fueled by ATP

(a) Schematic representation of an indicator-displacement assay (step i). An additional energy-consuming step (ii) is required to revert the system back to the original state. (b) Schematic energy diagram indicating the changes in free energy related to steps i and ii of the indicator-displacement assay depicted in a.