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Title of Journal: Appl Phys A

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Abbravation: Applied Physics A

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Springer-Verlag

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DOI

10.1007/s10527-012-9273-x

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1432-0630

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Ratchets power strokes and molecular motors

Authors: H Wang G Oster
Publish Date: 2014/01/27
Volume: 75, Issue: 2, Pages: 315-323
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Abstract

We present a method for determining the effective driving potential for a molecular motor from measurements of its stochastic position versus time In developing the method we can make precise the previously vague notions of ‘Brownian ratchet’ and ‘power stroke’ and suggest means to experimentally distinguish between the two In particular we distinguish between two kinds of ratchets ratchets that rectify large fluctuations and ratchets that bias small fluctuations

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