Authors:
H. Aoki Department of Biochemistry, Faculty of Science, Okayama University of Science, 1-1 Ridai-cho, 700 Okayama, Japan

Search for other papers by H. Aoki in
Current site
Google Scholar
PubMed
Close
and
M. Kodama Department of Biochemistry, Faculty of Science, Okayama University of Science, 1-1 Ridai-cho, 700 Okayama, Japan

Search for other papers by M. Kodama in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

The crystalline phase of dimyristoylphosphatidylethanolamine (DMPE)-water system was obtained by annealing the gel phase at around −5°C for periods up to 30 days. It was investigated by differential scanning calorimetry and negative-stain electron microscopy, particularly focusing on the behavior of water molecules. The crystalline phase showed a two-dimensional ribbonlike structure composed of regularly-stacked lamellae with an interlamellar spacing narrower than that of the gel phase. The conversion of the gel to crystalline phases on annealing was accompanied by a change in the bonding model of water molecules from a loosely-bound interlamellar water to a more loosely-bound water outside the lamellae. Ice-melting curves were deconvoluted using a computer program and different structures of water were estimated from enthalpy changes of each deconvoluted component. In accordance with a micrograph, only the loosely-bound water of one molecule of H2O per lipid was shown to be located between lamellae of the crystalline phase.

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Sep 2024 6 0 0
Oct 2024 16 0 0
Nov 2024 15 0 0
Dec 2024 9 0 0
Jan 2025 4 0 0
Feb 2025 6 0 0
Mar 2025 0 0 0