### Abstract

Original language | English |
---|---|

Pages (from-to) | 299-303 |

Journal | Journal of physics A: mathematical and general |

Volume | 10 |

Issue number | 2 |

DOIs | |

Publication status | Published - 1977 |

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### Keywords

- IR-60484

### Cite this

*Journal of physics A: mathematical and general*,

*10*(2), 299-303. https://doi.org/10.1088/0305-4470/10/2/018

}

*Journal of physics A: mathematical and general*, vol. 10, no. 2, pp. 299-303. https://doi.org/10.1088/0305-4470/10/2/018

**Adsorption of a macromolecule to a charged surface.** / Wiegel, F.W.

Research output: Contribution to journal › Article › Academic

TY - JOUR

T1 - Adsorption of a macromolecule to a charged surface

AU - Wiegel, F.W.

PY - 1977

Y1 - 1977

N2 - The adsorption of a charged macromolecule to a charged surface under the influence of a weak electrostatic attraction is investigated. The probability density P(x,N) to find the end point of a molecule with N monomer units at distance x from the surface is calculated analytically. In the limit N to infinity this function shows a phase transition at a critical value ( theta c) of the adsorption energy in units if kBT: for theta > theta cP(x,N) is peaked near the surface and the molecule is effectively adsorbed to the surface; for theta < theta c the heat motion is strong enough to remove the molecule from the surface and P(x,N) is effectively constant throughout the whole available volume. A possible role of such conformational phase transitions in the regulation of cellular metabolism is briefly commented on.

AB - The adsorption of a charged macromolecule to a charged surface under the influence of a weak electrostatic attraction is investigated. The probability density P(x,N) to find the end point of a molecule with N monomer units at distance x from the surface is calculated analytically. In the limit N to infinity this function shows a phase transition at a critical value ( theta c) of the adsorption energy in units if kBT: for theta > theta cP(x,N) is peaked near the surface and the molecule is effectively adsorbed to the surface; for theta < theta c the heat motion is strong enough to remove the molecule from the surface and P(x,N) is effectively constant throughout the whole available volume. A possible role of such conformational phase transitions in the regulation of cellular metabolism is briefly commented on.

KW - IR-60484

U2 - 10.1088/0305-4470/10/2/018

DO - 10.1088/0305-4470/10/2/018

M3 - Article

VL - 10

SP - 299

EP - 303

JO - Journal of physics A: mathematical and theoretical

JF - Journal of physics A: mathematical and theoretical

SN - 1751-8113

IS - 2

ER -