Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für biophysikalische Chemie     Collection: Abteilungsunabhängige Arbeitsgruppen     Display Documents



  history
ID: 16477.0, MPI für biophysikalische Chemie / Abteilungsunabhängige Arbeitsgruppen
Compressibility of lipid mixtures studied by calorimetry and ultrasonic velocity measurements
Authors:Schrader, W.; Ebel, H.; Grabitz, P.; Hanke, E.; Heimburg, T.; Hoeckel, M.; Kahle, M.; Wente, F.; Kaatze, U.
Language:English
Date of Publication (YYYY-MM-DD):2002-06-27
Title of Journal:Journal of Physical Chemistry B
Volume:106
Issue / Number:25
Start Page:6581
End Page:6586
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:Ultrasonic velocity and heat capacity temperature profiles of various lipid mixtures have been recorded with high accuracy. This included mixtures of phophatidylcholines with different chain length as well as phosphatidylcholine mixtures with diacyl glycerides. Following previous studies relating the heat capacity to the isothermal compressibility of lipids close to the chain melting transition, we found that the measured ultrasonic velocities are very similar to those calculated from the heat capacity. This implies that we are able to determine the compressibility changes from the excess heat capacity and the heat capacity changes from ultrasonic velocity measurements. The sound velocity and heat capacity traces are discussed with respect to the phase diagrams of the lipid mixtures.
Comment of the Author/Creator:Date: 2002, JUN 27
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für biophysikalische Chemie/AG Thomas Heimburg
External Affiliations:Univ Gottingen, Drittes Phys Inst, Burgerstr 42-44, D-37073; Gottingen, Germany
Identifiers:URL:http://pubs.acs.org/doi/pdfplus/10.1021/jp014029g
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.