Fig. 6 | Nature Communications

Fig. 6

From: Kinetic asymmetry allows macromolecular catalysts to drive an information ratchet

Fig. 6

An artificial molecular pump driven by external modulation or catalyzed redox reaction. a Schematic depiction of the pump with energy profiles under oxidizing and reducing conditions, along with molecular structures. b Energy ratchet model for operation of the pump by externally changing the redox potential back and forth between reducing and oxidizing conditions, and c Information ratchet model26 for using energy from a redox reaction \({\mathrm{red}}_1 + {\mathrm{ox}}_2\begin{array}{*{20}{c}} {\Delta \mu } \\ \rightleftharpoons \\ {} \end{array}{\mathrm{red}}_2 + {\mathrm{ox}}_1\) to drive assembly of CBPQT rings onto the collecting chain of the DB molecule, where disassembled (D), intermediate (I), and assembled (A) forms of the molecule when reduced (red) and when oxidized (ox) are shown

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