Electrohydrodynamic stretching of dna in confined environments

O. B. Bakajin; T. A.J. Duke; C. F. Chou; S. S. Chan; R. H. Austin; E. C. Cox

doi:10.1103/PhysRevLett.80.2737

Electrohydrodynamic stretching of dna in confined environments

O. B. Bakajin, T. A.J. Duke, C. F. Chou, S. S. Chan, R. H. Austin, E. C. Cox

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Abstract

The effect of confinement on the dynamics of polymers was studied by observing the transient extension and relaxation of single DNA molecules as they interacted with obstacles in a specially designed thin slit. Viscous drag was found to increase with the degree of confinement, which we interpret in terms of hydrodynamic screening by the planar surfaces of the slit. Since the DNA was driven by an electrophoretic force, the experimental data support the notion that an electric field acts on a tethered polyelectrolyte equivalently to a hydrodynamic flow.

Original language	English (US)
Pages (from-to)	2737-2740
Number of pages	4
Journal	Physical review letters
Volume	80
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.80.2737
State	Published - 1998

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.80.2737

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abstract = "The effect of confinement on the dynamics of polymers was studied by observing the transient extension and relaxation of single DNA molecules as they interacted with obstacles in a specially designed thin slit. Viscous drag was found to increase with the degree of confinement, which we interpret in terms of hydrodynamic screening by the planar surfaces of the slit. Since the DNA was driven by an electrophoretic force, the experimental data support the notion that an electric field acts on a tethered polyelectrolyte equivalently to a hydrodynamic flow.",

author = "Bakajin, {O. B.} and Duke, {T. A.J.} and Chou, {C. F.} and Chan, {S. S.} and Austin, {R. H.} and Cox, {E. C.}",

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language = "English (US)",

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T1 - Electrohydrodynamic stretching of dna in confined environments

AU - Bakajin, O. B.

AU - Duke, T. A.J.

AU - Chou, C. F.

AU - Chan, S. S.

AU - Austin, R. H.

AU - Cox, E. C.

PY - 1998

Y1 - 1998

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AB - The effect of confinement on the dynamics of polymers was studied by observing the transient extension and relaxation of single DNA molecules as they interacted with obstacles in a specially designed thin slit. Viscous drag was found to increase with the degree of confinement, which we interpret in terms of hydrodynamic screening by the planar surfaces of the slit. Since the DNA was driven by an electrophoretic force, the experimental data support the notion that an electric field acts on a tethered polyelectrolyte equivalently to a hydrodynamic flow.

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JO - Physical review letters

JF - Physical review letters

IS - 12

ER -

Electrohydrodynamic stretching of dna in confined environments

Abstract

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