Unidirectional rotation of micromotors on water powered by pH-controlled disassembly of chiral molecular crystals.

Autor: Carmeli I; Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel., Bounioux CM; Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel., Mickel P; Department of Chemistry, University of Illinois at Chicago, Chicago, IL, 60607, USA., Richardson MB; CSIRO Manufacturing, Bayview Avenue, Clayton, VIC, 3168, Australia., Templeman Y; Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 84105 POB 653, Israel., Scofield JMP; Department of Chemical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia., Qiao GG; Department of Chemical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia., Rosen BA; Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel., Yusupov Y; Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel., Meshi L; Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 84105 POB 653, Israel., Voelcker NH; Drug Delivery, Disposition, and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC, 3052, Australia., Diéguez O; Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel.; The Raymond and Beverly Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv, 6997801, Israel., Miloh T; School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 6997801, Israel., Král P; Department of Chemistry, University of Illinois at Chicago, Chicago, IL, 60607, USA. pkral@uic.edu.; Department of Physics, Pharmaceutical Sciences, and Chemical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA. pkral@uic.edu., Cohen H; Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 76100, Israel., Richter SE; Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel. srichter@tauex.tau.ac.il.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2023 May 19; Vol. 14 (1), pp. 2869. Date of Electronic Publication: 2023 May 19.
DOI: 10.1038/s41467-023-38308-9
Abstrakt: Biological and synthetic molecular motors, fueled by various physical and chemical means, can perform asymmetric linear and rotary motions that are inherently related to their asymmetric shapes. Here, we describe silver-organic micro-complexes of random shapes that exhibit macroscopic unidirectional rotation on water surface through the asymmetric release of cinchonine or cinchonidine chiral molecules from their crystallites asymmetrically adsorbed on the complex surfaces. Computational modeling indicates that the motor rotation is driven by a pH-controlled asymmetric jet-like Coulombic ejection of chiral molecules upon their protonation in water. The motor is capable of towing very large cargo, and its rotation can be accelerated by adding reducing agents to the water.
(© 2023. The Author(s).)
Databáze: MEDLINE
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