Paradoxical Brownian motion in a microfluidic device: Absolute negative mobility

Eichhorn R, Ros A, Regtmeier J, Duong TT, Reimann P, Anselmetti D (2007)
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS 143(1): 159-164.

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We report on a paradoxical migration mechanism in a microstructured lab-on-a-chip environment. The phenomenon is based on a subtle interplay between Brownian motion (thermal noise), a periodic and symmetric microstructure, and a biased AC electric field. The resulting non-linear dynamics far from thermal equilibrium gives rise to absolute negative mobility, i.e. a migrational transport, which is - both for negative and positive bias - always opposite to the net acting force, in good agreement between experiment and theory.
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Eichhorn R, Ros A, Regtmeier J, Duong TT, Reimann P, Anselmetti D. Paradoxical Brownian motion in a microfluidic device: Absolute negative mobility. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS. 2007;143(1):159-164.
Eichhorn, R., Ros, A., Regtmeier, J., Duong, T. T., Reimann, P., & Anselmetti, D. (2007). Paradoxical Brownian motion in a microfluidic device: Absolute negative mobility. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 143(1), 159-164.
Eichhorn, R., Ros, A., Regtmeier, J., Duong, T. T., Reimann, P., and Anselmetti, D. (2007). Paradoxical Brownian motion in a microfluidic device: Absolute negative mobility. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS 143, 159-164.
Eichhorn, R., et al., 2007. Paradoxical Brownian motion in a microfluidic device: Absolute negative mobility. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 143(1), p 159-164.
R. Eichhorn, et al., “Paradoxical Brownian motion in a microfluidic device: Absolute negative mobility”, EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, vol. 143, 2007, pp. 159-164.
Eichhorn, R., Ros, A., Regtmeier, J., Duong, T.T., Reimann, P., Anselmetti, D.: Paradoxical Brownian motion in a microfluidic device: Absolute negative mobility. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS. 143, 159-164 (2007).
Eichhorn, R., Ros, A., Regtmeier, Jan, Duong, T. Tu, Reimann, Peter, and Anselmetti, Dario. “Paradoxical Brownian motion in a microfluidic device: Absolute negative mobility”. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS 143.1 (2007): 159-164.
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