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arXiv 0812.2375cond-mat.softcond-mat.stat-mechphysics.bio-ph
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细菌浴中的自启动微电机

Self-Starting Micromotors in a Bacterial Bath

Luca Angelani, Roberto Di Leonardo, Giancarlo Ruocco

摘要:

由生物实体(如能动的细菌)推动的微马达构成了一种将化学能转化为微米级机械功的迷人方式。在这里,我们表明,通过使用数值模拟,一个适当设计的非对称对象可以自发地设置成所需的运动时,沉浸在一个混乱的细菌浴。我们的研究结果开辟了一条道路,设想新的混合微设备利用细菌有机体的机械动力生产。此外,该系统提供了一个例子,与平衡热浴相比,活性粒子的不可逆混沌运动可以通过不对称环境来纠正。

英文摘要:

Micromotors pushed by biological entities, like motile bacteria, constitute a fascinating way to convert chemical energy into mechanical work at the micrometer scale. Here we show, by using numerical simulations, that a properly designed asymmetric object can be spontaneously set into the desired motion when immersed in a chaotic bacterial bath. Our findings open the way to conceive new hybrid microdevices exploiting the mechanical power production of bacterial organisms. Moreover, the system provides an example of how, in contrast with equilibrium thermal baths, the irreversible chaotic motion of active particles can be rectified by asymmetric environments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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