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  Relaxation kinetics of lipid membranes and its relation to the heat capacity

Grabitz, P., Ivanova, V. P., & Heimburg, T. (2002). Relaxation kinetics of lipid membranes and its relation to the heat capacity. Biophysical Journal, 82(1), 299-309. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B94RW-4TX14BD-10-1&_cdi=56421&_user=38661&_pii=S0006349502753952&_origin=search&_coverDate=01%2F31%2F2002&_sk=999179998&view=c&wchp=dGLbVzz-zSkzV&md5=37014de769b9128c0a2a5c8dc854c5ab&ie=/sdarticle.pdf.

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599720.pdf (Publisher version), 335KB
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Grabitz, P.1, Author           
Ivanova, V. P.1, Author           
Heimburg, T.1, Author           
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1Research Group of Biophysics and Thermodynamics of Membranes, MPI for biophysical chemistry, Max Planck Society, ou_578546              

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 Abstract: We investigated the relaxation behavior of lipid membranes close to the chain-melting transition using pressure jump calorimetry with a temperature accuracy of similar to10(-3) K. We found relaxation times in the range from seconds up to about a minute, depending on vesicular state. The relaxation times, are within error proportional to the heat capacity. We provide a statistical thermodynamics theory that rationalizes the close relation between heat capacity and relaxation times. It is based on our recent finding that enthalpy and volume changes close to the melting transition are proportional functions.

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Language(s): eng - English
 Dates: 2002-01
 Publication Status: Issued
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 Rev. Type: Peer
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Title: Biophysical Journal
Source Genre: Journal
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Pages: - Volume / Issue: 82 (1) Sequence Number: - Start / End Page: 299 - 309 Identifier: -