The Future of Molecular Machines

ACS Central Science, Год журнала: 2020, Номер 6(3), С. 347 - 358

Опубликована: Март 3, 2020

Artificial molecular machines have captured the imagination of scientists and nonscientists alike for decades now, given their clear potential to transform enhance all aspects human life. In this Outlook, I use a bicycle as an analogy explain what machine is, in my opinion, work through representative selection case studies specify significant accomplishments made date, obstacles that currently stand between these field's fulfillment its great potential. The hope intentionally sober account is sketch path toward rich exciting research trajectory might challenge current practitioners attract junior into fold. Considering progress we witnessed past decade, am positive future field rosy one.

Язык: Английский

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Self-Propulsion of Chemically Active Droplets

Annual Review of Fluid Mechanics, Год журнала: 2022, Номер 55(1), С. 77 - 101

Опубликована: Окт. 31, 2022

Microscopic active droplets are able to swim autonomously in viscous flows. This puzzling feature stems from solute exchanges with the surrounding fluid via surface reactions or their spontaneous solubilization and interfacial flows resulting these solutes’ gradients. Contrary asymmetric colloids, isotropic spontaneously by exploiting nonlinear coupling of transport self-generated Marangoni flows; such is also responsible for secondary transitions more complex individual collective dynamics. Thanks simple design sensitivity physico-chemical signals, fascinating physicists, chemists, biologists, dynamicists alike analyzing self-propulsion dynamics active-matter systems, developing synthetic cellular models, performing targeted biomedical engineering applications. I review here most recent significant developments this rapidly growing field, focusing on mathematical physical modeling intriguing droplets, together experimental characterization.

Язык: Английский

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Bottom-Up: Can Supramolecular Tools Deliver Responsiveness from Molecular Motors to Macroscopic Materials?

Matter, Год журнала: 2020, Номер 3(2), С. 355 - 370

Опубликована: Авг. 1, 2020

Язык: Английский

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Circular swimming motility and disordered hyperuniform state in an algae system

Proceedings of the National Academy of Sciences, Год журнала: 2021, Номер 118(18)

Опубликована: Апрель 30, 2021

Active matter comprises individually driven units that convert locally stored energy into mechanical motion. Interactions between lead to a variety of nonequilibrium collective phenomena in active matter. One such is anomalously large density fluctuations, which have been observed both experiments and theories. Here we show that, on the contrary, fluctuations can also be greatly suppressed. Our are carried out with marine algae ([Formula: see text]), swim circles at air-liquid interfaces two different eukaryotic flagella. Cell swimming generates fluid flow leads effective repulsions cells far field. The long-range nature repulsive interactions suppresses disordered hyperuniform states under wide range conditions. Emergence hyperuniformity associated scaling exponent quantitatively reproduced numerical model whose main ingredients hydrodynamic uncorrelated random cell results demonstrate existence suggest possibility using for self-assembly

Язык: Английский

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Chiral Mesostructured Inorganic Materials with Optical Chiral Response

Advanced Materials, Год журнала: 2022, Номер 35(51)

Опубликована: Окт. 17, 2022

Fabricating chiral inorganic materials and revealing their unique quantum confinement‐determined optical responses are crucial tasks in the multidisciplinary fields of chemistry, physics, biology. The field mesostructured started from synthesis individual nanocrystals evolved to include assembly metals, semiconductors, ceramics, salts endowed with various structures ranging atomic micron scales. This tutorial review highlights recent research on materials, especially novel expression chirality response, it may inspire us new strategies for design opportunities beyond traditional applications chirality. Fabrication methods classified according type, scale, symmetry‐breaking mechanism. Special attention is given highlight systems original discoveries, exceptional phenomena, or mechanisms response left‐ right‐handedness.

Язык: Английский

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We the droplets: A constitutional approach to active and self-propelled emulsions

Current Opinion in Colloid & Interface Science, Год журнала: 2022, Номер 61, С. 101623 - 101623

Опубликована: Сен. 6, 2022

Язык: Английский

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Achieving Control in Micro‐/Nanomotor Mobility

Angewandte Chemie International Edition, Год журнала: 2022, Номер 62(5)

Опубликована: Ноя. 22, 2022

Unprecedented opportunities exist for the generation of advanced nanotechnologies based on synthetic micro/nanomotors (MNMs), such as active transport medical agents or removal pollutants. In this regard, great efforts have been dedicated toward controlling MNM motion (e.g., speed, directionality). This was generally performed by precise engineering and optimizing motors' chassis, engine, powering mode (i.e., chemical physical), mechanism motion. Recently, new insights emerged to control motors mobility, mainly inclusion different modes that drive propulsion. With high degree synchronization, these work providing required level control. Minireview, we discuss diverse factors impact motion; include morphology, how over achieved. Moreover, highlight main limitations need be overcome so can translated into real applications.

Язык: Английский

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Motile behaviour of droplets in lipid systems

Nature Reviews Chemistry, Год журнала: 2022, Номер 6(6), С. 377 - 388

Опубликована: Май 25, 2022

Язык: Английский

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Enlightening dynamic functions in molecular systems by intrinsically chiral light-driven molecular motors

Chemical Society Reviews, Год журнала: 2023, Номер 52(17), С. 5875 - 5891

Опубликована: Янв. 1, 2023

Chirality is a fundamental property which plays major role in chemistry, physics, biological systems and materials science.

Язык: Английский

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Chiral Locomotion Transitions of an Active Gel and Their Chemomechanical Origin

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Transitions between chiral rotational locomotion modes occur in a variety of active individuals and populations, such as sidewinders, self-propelled droplets, dense bacterial suspensions. Despite recent progress the study matter, general principles governing transition remain elusive. Here, we study, experimentally theoretically, its 2D polyacrylamide (PAAm)-based BZ gel driven by Belousov-Zhabotinsky reaction-diffusion waves. Analysis reveals that phase difference (Δφ) orthogonal components kinematic quantities, chemomechanical force, displacement, velocity, determines chirality, i.e., occurs when Δφ changes sign. This criterion is illustrated with equation, which can be applied to biological physical systems, including super-rotational/superhelical reported recently during E. gracilis swimming sperm navigation. work has potential applications for design functional materials intelligent robots.

Язык: Английский

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