Pressure induced hydration dynamics of membranes

F. Österberg, M. Kriechbaum, A. Polcyn, V. Skita, M. W. Tate, P. T. C. So, S. M. Gruner, and Shyamsunder Erramilli
Phys. Rev. Lett. 72, 2967 – Published 2 May 1994
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Abstract

Pressure-jump initiated time-resolved x-ray diffraction studies of dynamics of the hydration of the hexagonal phase in biological membranes show that (i) the relaxation of unit cell spacing is nonexponential in time; and (ii) the Bragg peaks shift smoothly to thier final positions without significant broadening or loss in crystalline order. This suggests that the hydration is not diffusion limited but occurs via a rather homogeneous swelling of the whole lattice, described by power law kinetics with an exponent β=1.3±0.2.

  • Received 1 November 1993

DOI:https://doi.org/10.1103/PhysRevLett.72.2967

©1994 American Physical Society

Authors & Affiliations

F. Österberg, M. Kriechbaum, A. Polcyn, V. Skita, M. W. Tate, P. T. C. So, S. M. Gruner, and Shyamsunder Erramilli

  • Department of Physics, Joseph Henry Laboratories, Princeton University, P.O. Box 708, Princeton, New Jersey 08544

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Vol. 72, Iss. 18 — 2 May 1994

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