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Review

Robust Dynamics of Synthetic Molecular Systems as a Consequence of Broken Symmetry

Faculty of Science, Hokkaido University, Hokkaido 060-0810, Japan
Symmetry 2020, 12(10), 1688; https://doi.org/10.3390/sym12101688
Received: 8 September 2020 / Revised: 5 October 2020 / Accepted: 10 October 2020 / Published: 14 October 2020
(This article belongs to the Special Issue Chemical Symmetry Breaking)
The construction of molecular robot-like objects that imitate living things is an important challenge for current chemists. Such molecular devices are expected to perform their duties robustly to carry out mechanical motion, process information, and make independent decisions. Dissipative self-organization plays an essential role in meeting these purposes. To produce a micro-robot that can perform the above tasks autonomously as a single entity, a function generator is required. Although many elegant review articles featuring chemical devices that mimic biological mechanical functions have been published recently, the dissipative structure, which is the minimum requirement for mimicking these functions, has not been sufficiently discussed. This article aims to show clearly that dissipative self-organization is a phenomenon involving autonomy, robustness, mechanical functions, and energy transformation. Moreover, it reports the results of recent experiments with an autonomous light-driven molecular device that achieves all of these features. In addition, a chemical model of cell-amplification is also discussed to focus on the generation of hierarchical movement by dissipative self-organization. By reviewing this research, it may be perceived that mainstream approaches to synthetic chemistry have not always been appropriate. In summary, the author proposes that the integration of catalytic functions is a key issue for the creation of autonomous microarchitecture. View Full-Text
Keywords: dissipative structure; energy conversion; mechanical work; self-oscillation; collective dynamics; autonomous motion; self-replication; autocatalysis; molecular motor; molecular robot dissipative structure; energy conversion; mechanical work; self-oscillation; collective dynamics; autonomous motion; self-replication; autocatalysis; molecular motor; molecular robot
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MDPI and ACS Style

Kageyama, Y. Robust Dynamics of Synthetic Molecular Systems as a Consequence of Broken Symmetry. Symmetry 2020, 12, 1688. https://doi.org/10.3390/sym12101688

AMA Style

Kageyama Y. Robust Dynamics of Synthetic Molecular Systems as a Consequence of Broken Symmetry. Symmetry. 2020; 12(10):1688. https://doi.org/10.3390/sym12101688

Chicago/Turabian Style

Kageyama, Yoshiyuki. 2020. "Robust Dynamics of Synthetic Molecular Systems as a Consequence of Broken Symmetry" Symmetry 12, no. 10: 1688. https://doi.org/10.3390/sym12101688

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