Torque-speed relationship of the bacterial flagellar motor
Torque-speed relationship of the bacterial flagellar motor
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DOI：
10.1073/pnas.0507959103
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发表时间：
2006-01-31
影响因子：
11.1
通讯作者：
Oster, G
中科院分区：
文献类型：
--
作者：
Xing, JH;Bai, F;Oster, G
许多游动的细菌是由旋转马达驱动的鞭毛细丝推动的。这些微型马达中的每一个都可以产生令人印象深刻的扭矩。电动机转矩与速度的关系被认为是电动机最重要的可测量特性之一，因此是判断工作机构模型的主要标准。在这里，我们给出了一个明确的解释这个扭矩-速度曲线。同样的物理原理也可以解释其他电动机的某些令人困惑的特性。
Many swimming bacteria are propelled by flagellar filaments driven by a rotary motor. Each of these tiny motors can generate an impressive torque. The motor torque vs. speed relationship is considered one of the most important measurable characteristics of the motor and therefore is a major criterion for judging models proposed for the working mechanism. Here we give an explicit explanation for this torque-speed curve. The same physics also can explain certain puzzling properties of other motors.