Towards molecular motors in unison

Huang, Hubiao; Aida, Takuzo

doi:10.1038/s41565-019-0414-1

Cited by 32 publications

(20 citation statements)

References 8 publications

(9 reference statements)

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“…Can we build continuously operated ''light-driven miniaturized plants'' embedding catalytic functions (Figure 4D)? 86…”

Section: Solid-state Applicationsmentioning

confidence: 99%

“…(C) In situ Raman spectra of the motorized MOF before and after UV irradiation (395 nm) and then THI process at 20 C. Inset cycles show the recyclability of the light-responsive solid-state motorized MOF. (D) Proposal by Huang and Aida to use this light-driven motorized MOF as a miniaturized chemical plant 86. The key idea involves the utilization of synchronously collective rotation of motors to accelerate the mass-transfer process in the channel of MOF.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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

Zhang

Tian

et al. 2020

Matter

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Motion is omnipresent, as is obvious from the artificial machines in the macro-world and the biomolecular motors in living systems, controlling dynamic behavior along many length scales. With the emergence of molecular machines in the past decades, a major step has been made toward responsive materials and dynamic molecular systems. Photochemical rotary molecular motors hold a unique position, as embedding nanoscale motors in macroscopic materials enables light-driven responsive and adaptive properties. Although the synthesis and engineering of discrete molecular motors in the solution phase are well understood, the design and construction of motorized smart materials that operate at the supramolecular and macroscopic levels provide several fundamental challenges. This Review highlights emerging methodologies that take advantage of the supramolecular toolbox for the bottom-up assembly of responsive materials. Illustrative examples include muscle-like actuators, motor-based metal-organic frameworks, and motorized liquid crystal films and droplets. Emphasis is on how the lightresponsive behavior and motion of rotary molecular motors can be communicated, delivered, and amplified to result in a specific dynamic output ranging from the nanoscale and molecular level all the way to the macroscopic scale and materials level. Furthermore, general guidelines for the supramolecular amplification of molecular motion and challenges and perspectives for the development of future motorized smart materials are presented.

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“…Can we build continuously operated ''light-driven miniaturized plants'' embedding catalytic functions (Figure 4D)? 86…”

Section: Solid-state Applicationsmentioning

confidence: 99%

mentioning

confidence: 99%

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

Zhang

Tian

et al. 2020

Matter

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“…56 Especially confining a reaction media in close proximity to the motion of rotors is expected to enhance dynamic effects. 27 We consider the effect of this by arranging our motor system on the walls of a one-dimensional pore (Fig. 6a).…”

Section: Azimuthal Rotor In a One-dimensional Porementioning

confidence: 99%

“…26 Instead, controlled rotational motion by MMs in porous systems is expected to enhance diffusion due to confinement effects. 27,28 Recently, Danowski et al reported on the incorporation of 2 nd generation light-driven MMs in the backbone of a porous metal-organic framework. 29 They demonstrated that the unidirectionality of rotation is maintained and that the immobilized motors exhibit rotational frequencies similar to the motors in solution.…”

Section: Introductionmentioning

confidence: 99%

Cooperative and Synchronized Rotation in Motorized Porous Frameworks: Impact on Local and Global Transport Properties of Confined Fluids

Evans

Krause²,

Feringa³

2020

Preprint

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<div>Molecules in gas and liquid states, as well as in solution, exhibit significant and random Brownian motion. Molecules in the solid-state, although strongly immobilized, can still exhibit significant intramolecular dynamics. However, in most framework materials, these intramolecular dynamics are driven by temperature, and therefore are neither controlled nor spatially or temporarily aligned. In recent years, several examples of molecular machines that allow for a stimuli-responsive control of dynamical motion, such as rotation, have been reported.</div><div><br></div><div>In this contribution, we investigate the local and global properties of a Lennard-Jones (LJ) fluid surrounding a molecular motor and consider the influence of cooperative and non-directional rotation for a molecular motor-containing pore system. This study uses classical molecular dynamics simulations to describe a minimal model, which was developed to resemble known molecular motors. The properties of an LJ liquid surrounding an isolated molecular mo-tor remain mostly unaffected by the introduced rotation. We then considered an arrangement of motors within a one-dimensional pore. Changes in diffusivity for pore sizes approaching the length of the rotor were observed, resulting from rotation of the motors. We also considered the influence of cooperative motor directionality on the directional transport properties of this con-fined fluid. Importantly, we discovered that specific unidirectional rotation of altitudinal motors can produce directed diffusion.</div><div><br></div><div>This study provides an essential insight into molecular machine-containing frameworks, highlighting the specific structural arrangements that can produce directional mass transport.</div>

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Light‐Driven Molecular Machines

Silvi

Baroncini

2022

Molecular Photoswitches

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Towards molecular motors in unison

Cited by 32 publications

References 8 publications

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

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

Cooperative and Synchronized Rotation in Motorized Porous Frameworks: Impact on Local and Global Transport Properties of Confined Fluids

Light‐Driven Molecular Machines

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