Thermodynamics and kinetics of a Brownian motor
Thermodynamics and kinetics of a Brownian motor
复制标题
DOI：
10.1126/science.276.5314.917
复制
发表时间：
1997-05-09
期刊：
影响因子：
56.9
通讯作者：
Astumian, RD
中科院分区：
文献类型：
--
作者：
Astumian, RD
非平衡涨落，无论是外部产生的还是远离平衡的化学反应产生的，都可以使粒子在各向异性介质中的布朗运动产生偏差，而没有热梯度，净力（如重力）或宏观电场。波动驱动的传输是化学能可以直接驱动颗粒和大分子运动的一种机制，并且可以在各种各样的领域中找到应用，包括颗粒分离和分子马达和泵的设计。
Nonequilibrium fluctuations, whether generated externally or by a chemical reaction far from equilibrium, can bias the Brownian motion of a particle in an anisotropic medium without thermal gradients, a net force such as gravity, or a macroscopic electric field. Fluctuation-driven transport is one mechanism by which chemical energy can directly drive the motion of particles and macromolecules and may find application in a wide variety of fields, including particle separation and the design of molecular motors and pumps.