Chemically Propelled Motors Navigate Chemical Patterns.
Chemically Propelled Motors Navigate Chemical Patterns.
复制标题
化学推进电机驾驭化学模式
DOI:
10.1002/advs.201800028
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发表时间:
2018-09
期刊:
影响因子:
--
通讯作者:
Kapral R
中科院分区:
文献类型:
--
作者:
Chen JX;Chen YG;Kapral R
Very small synthetic motors that use chemical reactions to drive their motion are being studied widely because of their potential applications, which often involve active transport and dynamics on nanoscales. Like biological molecular machines, they must be able to perform their tasks in complex, highly fluctuating environments that can form chemical patterns with diverse structures. Motors in such systems can actively assemble into dynamic clusters and other unique nonequilibrium states. It is shown how chemical patterns with small characteristic dimensions may be utilized to suppress rotational Brownian motions of motors and guide them to move along prescribed paths, properties that can be exploited in applications. In systems with larger pattern length scales, domains can serve as catch basins for motors through chemotactic effects. The resulting collective motor dynamics in such confining domains can be used to explore new aspects of active particle collective dynamics or promote specific types of active self‐assembly. More generally, when chemically self‐propelled motors operate in far‐from‐equilibrium active chemical media the variety of possible phenomena and the scope of their potential applications are substantially increased.
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