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Carmeli I, Bounioux CM, Mickel P, Richardson MB, Templeman Y, Scofield JMP, Qiao GG, Rosen BA, Yusupov Y, Meshi L, Voelcker NH, Diéguez O, Miloh T, Král P, Cohen H, Richter SE. Unidirectional rotation of micromotors on water powered by pH-controlled disassembly of chiral molecular crystals. Nat Commun 2023; 14:2869. [PMID: 37208331 DOI: 10.1038/s41467-023-38308-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 04/24/2023] [Indexed: 05/21/2023] Open
Abstract
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.
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Affiliation(s)
- Itai Carmeli
- Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel
| | - Celine M Bounioux
- Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel
| | - Philip Mickel
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | | | - Yael Templeman
- Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 84105 POB 653, Israel
| | - Joel M P Scofield
- Department of Chemical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Greg G Qiao
- Department of Chemical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Brian Ashley Rosen
- Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel
| | - Yelena Yusupov
- Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel
| | - Louisa Meshi
- Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 84105 POB 653, Israel
| | - Nicolas H Voelcker
- Drug Delivery, Disposition, and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC, 3052, Australia
| | - Oswaldo Diéguez
- 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
| | - Touvia Miloh
- School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Petr Král
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL, 60607, USA.
- Department of Physics, Pharmaceutical Sciences, and Chemical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA.
| | - Hagai Cohen
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Shachar E Richter
- Department of Materials Science and Engineering, Faculty of Engineering & University Center for Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 6997801, Israel.
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Abstract
Synthetic autonomous locomotion shows great promise in many research fields, including biomedicine and environmental science, because it can allow targeted drug/cargo delivery and the circumvention of kinetic and thermodynamic limitations. Creating such self-moving objects often requires advanced production techniques as exemplified by catalytic, gas-forming microrockets. Here, we grow such structures via the self-organization of precipitate tubes in chemical gardens by simply injecting metal salts into silicate solutions. This method generates hollow, cylindrical objects rich in catalytic manganese oxide that also feature a partially insulating outer layer of inert silica. In dilute H2O2 solution, these structures undergo self-propulsion by ejecting streams of oxygen bubbles. Each emission event pushes the tube forward by 1-2 tube radii. The ejection frequency depends linearly on the peroxide concentration as quantified by acoustic measurements of bursting bubbles. We expect our facile method and key results to be applicable to a diverse range of materials and reactions.
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Affiliation(s)
- Qingpu Wang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Pamela Knoll
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Oliver Steinbock
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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Kumar DJP, Borkar C, Dayal P. Fast-Moving Self-Propelled Droplets of a Nanocatalyzed Belousov-Zhabotinsky Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12586-12595. [PMID: 34670083 DOI: 10.1021/acs.langmuir.1c01887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Self-sustained locomotion by virtue of an internalized chemical reaction is a characteristic feature of living systems and has inspired researchers to develop such self-moving biomimetic systems. Here, we harness a self-oscillating Belousov-Zhabotinsky (BZ) reaction, a well-known chemical oscillator, with enhanced kinetics by virtue of our graphene-based catalytic mats, to elucidate the spontaneous locomotion of BZ reaction droplets. Specifically, our nanocatalysts comprise ruthenium nanoparticle decorations on graphene oxide, reduced graphene oxide, and graphene nanosheets, thereby creating 0D-2D heterostructures. We demonstrate that when these nanocatalyzed droplets of the BZ reaction are placed in an oil-surfactant medium, they exhibit a macroscopic translatory motion at the velocities of few millimeters per second. This motion is brought about by the combination of enhanced kinetics of the BZ reaction and the Marangoni effect. Our investigations reveal that the velocity of locomotion increases with the electrical conductivity of our nanocomposites. Moreover, we also show that the positive feedback generated by the reaction-diffusion phenomena results in an asymmetric distribution of surface tension that, in turn, facilitates the self-propelled motion of the BZ droplets. Finally, we explore a system of multiple nanocatalyzed BZ droplets and reveal a variety of motions caused by their mutual interactions. Our findings suggest that through the use of 0D-2D hybrid nanomaterials, it is possible to design fast-moving self-propelled synthetic objects for a variety of biomimetic applications.
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Affiliation(s)
- D Jaya Prasanna Kumar
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
| | - Chaitra Borkar
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
| | - Pratyush Dayal
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
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Hughes EAB, Jones‐Salkey O, Forey P, Chipara M, Grover LM. Exploring the Formation of Calcium Orthophosphate‐Pyrophosphate Chemical Gardens. CHEMSYSTEMSCHEM 2021. [DOI: 10.1002/syst.202000062] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Erik A. B. Hughes
- School of Chemical Engineering University of Birmingham Birmingham B15 2TT UK
- NIHR Surgical Reconstruction and Microbiology Research Centre Queen Elizabeth Hospital Birmingham UK
| | - Owen Jones‐Salkey
- School of Chemical Engineering University of Birmingham Birmingham B15 2TT UK
| | - Prescillia Forey
- Ensaia Université De Lorraine 34 Cours Léopold, CS 25233 F-54052 Nancy France
| | - Miruna Chipara
- School of Chemical Engineering University of Birmingham Birmingham B15 2TT UK
| | - Liam M. Grover
- School of Chemical Engineering University of Birmingham Birmingham B15 2TT UK
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5
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Nakata S, Fujita R. Self-Propelled Motion of a Camphor Disk on a Nervonic Acid Molecular Layer and Its Dependence on Phase Transition. J Phys Chem B 2020; 124:5525-5529. [PMID: 32501008 DOI: 10.1021/acs.jpcb.0c03044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We studied the self-propelled motion of a camphor disk placed on water developed with a nervonic acid molecular layer to investigate the dependence of types of motion on the properties of amphiphilic compounds. The surface pressure (Π) versus area (A) isotherm exhibited a transition point corresponding to a phase transition between the fluid (F) and fluid/condensed (F/C) phases of nervonic acid. The type of motion was determined by not only the surface pressure of the nervonic acid molecular layer but also the phase, either F or F/C. When the temperature of water was varied through the phase transition temperature Tp40 (∼23 °C), with an area of 40 Å2 per nervonic acid molecule in the molecular layer, no motion and oscillatory motion were observed reversibly above and below Tp40, respectively. Our results suggest that the features of camphor motion depend on not only the surface pressure but also the nature of the phase in the nervonic acid molecular layer.
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Affiliation(s)
- Satoshi Nakata
- Graduate School of Integrated Science for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Risa Fujita
- Graduate School of Integrated Science for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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Roy PK, Binks BP, Fujii S, Shoval S, Bormashenko E. Composite Liquid Marbles as a Macroscopic Model System Representing Shedding of Enveloped Viruses. J Phys Chem Lett 2020; 11:4279-4285. [PMID: 32396360 DOI: 10.1021/acs.jpclett.0c01230] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A model macroscopic system imitating the entry of viruses into living cells is suggested. The system represents the contact of a composite (core-shell) liquid marble with hydrophobic/hydrophilic particles. Composite liquid marbles are water droplets coated with silicone oil armored with nanometer-sized hydrophobic particles serving as an interfacial model of a living cell. Composite marbles absorbed hydrophilic polymer particles but prevented hydrophobic particles from entering their core. Swallowing of hydrophilic particles by composite marbles resembles the penetration of viruses into living cells. The interfacial mechanism of absorption is suggested.
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Affiliation(s)
- Pritam Kumar Roy
- Chemical Engineering Department, Engineering Faculty, Ariel University, P.O.B. 3, 407000 Ariel, Israel
| | - Bernard P Binks
- Department of Chemistry and Biochemistry, University of Hull, Hull HU6 7RX, U.K
| | - Syuji Fujii
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Shraga Shoval
- Industrial Engineering and Management Department, Engineering Faculty, Ariel University, P.O.B. 3, 40700 Ariel, Israel
| | - Edward Bormashenko
- Chemical Engineering Department, Engineering Faculty, Ariel University, P.O.B. 3, 407000 Ariel, Israel
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Koyano Y, Kitahata H, Nakata S, Gorecki J. On a simple model that explains inversion of a self-propelled rotor under periodic stop-and-release-operations. CHAOS (WOODBURY, N.Y.) 2020; 30:023105. [PMID: 32113248 DOI: 10.1063/1.5140626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 01/08/2020] [Indexed: 06/10/2023]
Abstract
We propose a simple mathematical model that describes the time evolution of a self-propelled object on a liquid surface using variables such as object location, surface concentration of active molecules, and hydrodynamic surface flow. The model is applied to simulate the time evolution of a rotor composed of a polygonal plate with camphor pills at its corners. We have qualitatively reproduced results of experiments, in which the inversion of rotational direction under periodic stop-and-release-operations was investigated. The model correctly describes the probability of the inversion as a function of the duration of the phase when the rotor is stopped. Moreover, the model allows to introduce the rotor asymmetry unavoidable in real experiments and study its influence on the studied phenomenon. Our numerical simulations have revealed that the probability of the inversion of rotational direction is determined by the competition among the transport of the camphor molecules by the flow, the intrinsic asymmetry of the rotor, and the noise amplitude.
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Affiliation(s)
- Yuki Koyano
- Department of Physics, Graduate School of Science, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Hiroyuki Kitahata
- Department of Physics, Graduate School of Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Satoshi Nakata
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Jerzy Gorecki
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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Cheng M, Zhang D, Zhang S, Wang Z, Shi F. Tackling the Short-Lived Marangoni Motion Using a Supramolecular Strategy. CCS CHEMISTRY 2019. [DOI: 10.31635/ccschem.019.20180009] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Inspired by the intriguing capability of beetles to quickly slide on water, scientists have long translated this surface-tension-gradient–dominated Marangoni motion into various applications, for example, self-propulsion. However, this classical spontaneous motion is limited by a short lifetime due to the loss of the surface tension gradient. Indeed, the propellant of amphiphilic surfactants can rapidly reach an adsorption equilibrium and an excessive aggregation state at the air/liquid interface. Here, we demonstrate a supramolecular host–guest chemistry strategy that allows the breaking of the physical limit of the adsorption equilibrium and the simultaneous removal of surfactant molecules from the interface. By balancing the competitive kinetics between the two processes, we have prolonged the lifetime of the motion 40-fold. Our work presents an important advance in the query of long-lived self-propulsion transport through flexible interference at the molecular level and holds promise in electricity generation applications .
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Morohashi H, Imai M, Toyota T. Construction of a chemical motor-movable frame assembly based on camphor grains using water-floating 3D-printed models. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.02.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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