Using catalysis to drive chemistry away from equilibrium: relating kinetic asymmetry, power strokes, and the Curtin–Hammett principle in Brownian ratchets

S Amano, M Esposito, E Kreidt, DA Leigh… - Journal of the …, 2022 - ACS Publications
Chemically fueled autonomous molecular machines are catalysis-driven systems governed
by Brownian information ratchet mechanisms. One fundamental principle behind their …

Artificial molecular ratchets: Tools enabling endergonic processes

T Sangchai, S Al Shehimy, E Penocchio… - Angewandte Chemie …, 2023 - Wiley Online Library
Non‐equilibrium chemical systems underpin multiple domains of contemporary interest,
including supramolecular chemistry, molecular machines, systems chemistry, prebiotic …

Photoswitchable Imines Drive Dynamic Covalent Systems to Nonequilibrium Steady States

J Wu, JL Greenfield - Journal of the American Chemical Society, 2024 - ACS Publications
Coupling a photochemical reaction to a thermal exchange process can drive the latter to a
nonequilibrium steady state (NESS) under photoirradiation. Typically, systems use separate …

Photoresponsive rotaxane-branched dendrimers: from nanoscale dimension modulation to macroscopic soft actuators

WJ Li, WT Xu, XQ Wang, Y Jiang, Y Zhu… - Journal of the …, 2023 - ACS Publications
Aiming at the construction of novel soft actuators through the amplified motions of molecular
machines at the nanoscale, the design and synthesis of a new family of photoresponsive …

A molecular anion pump

B Shao, H Fu, I Aprahamian - Science, 2024 - science.org
Pum** ions against a concentration gradient through protein-based transporters is a
cornerstone of numerous biological processes. Mimicking this function by using artificial …

The role of kinetic asymmetry and power strokes in an information ratchet

L Binks, S Borsley, TR Gingrich, DA Leigh… - Chem, 2023 - cell.com
Biomolecular machines are driven by information ratchet mechanisms, where kinetic
asymmetry in the machine's chemomechanical cycle of fuel-to-waste catalysis induces net …

Searching the chemical space of bicyclic dienes for molecular solar thermal energy storage candidates

AE Hillers‐Bendtsen, JL Elholm… - Angewandte Chemie …, 2023 - Wiley Online Library
Photoswitches are molecular systems that are chemically transformed subsequent to
interaction with light and they find potential application in many new technologies. The …

ATP drives the formation of a catalytic hydrazone through an energy ratchet mechanism

T Marchetti, D Frezzato, L Gabrielli… - Angewandte …, 2023 - Wiley Online Library
An energy ratchet mechanism is exploited for the synthesis of a molecule. In the presence of
adenosine triphosphate (ATP), hydrazone‐bond formation between an aldehyde and …

Kinetic Asymmetry and directionality of nonequilibrium molecular systems

RD Astumian - Angewandte Chemie, 2024 - Wiley Online Library
Scientists have long been fascinated by the biomolecular machines in living systems that
process energy and information to sustain life. The first synthetic molecular rotor capable of …

Kinetic barrier diagrams to visualize and engineer molecular nonequilibrium systems

E Penocchio, G Ragazzon - Small, 2023 - Wiley Online Library
Molecular nonequilibrium systems hold great promises for the nanotechnology of the future.
Yet, their development is slowed by the absence of an informative representation. Indeed …