Publications
Title:
A swollen gel phase of DPPC aqueous solution with small amount of ethanol observed at moderate pressure and temperature
Language: | English |
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Type: | Article |
Authors: | Hideki Seto, Hidekazu Nobutou, Norifumi L. Yamada, Takayoshi Takeda, Daisuke Ihara, Michihiro Nagao and Katsuaki Inoue |
Editors: | |
Journal: | Journal of Applied Crystallography |
ISSN: | 0021-8898 |
Volume: | 36 |
Number: | 3 |
Month: | 6 |
Year: | 2003 |
Actual year: | 2003 |
Pages: | 607–611 |
doi: | 10.1107/s0021889803005077 |
bibtex id: | 2003_JAC_Seto_03-25 |
Abstract: | In order to clarify effects of pressure on phospholipids, small-angle neutron scattering and X-ray scattering experiments on an aqueous solution of dipalmitoyl-sn-glycero-3-phosphatidylcholine (DPPC) with small amount of ethanol were carried out. At moderate temperature and pressure (41 less than or equal to T less than or equal to 60 degreesC and 10 less than or equal to P less than or equal to 80 MPa), among a fluid lamellar (L-alpha) phase, a ripple gel (P-beta') phase and an interdigitated gel (L-betaI) phase, we have found a new phase with a single peak at around Q = 0.06 Angstrom(-1). This phase was characterized to be a swollen gel phase from the data analysis. The kinetics of the phase transition to the L-betaI phase was investigated, and the relaxation was much slower than the transition to the other bilayer structures. |
Acknowledgment: |
2003 | |
"A swollen gel phase of DPPC aqueous solution with small amount of ethanol observed at moderate pressure and temperature" Hideki Seto, Hidekazu Nobutou, Norifumi L. Yamada, Takayoshi Takeda, Daisuke Ihara, Michihiro Nagao and Katsuaki Inoue, Journal of Applied Crystallography, 36(3), 607–611 (2003) | detail publisher doi:10.1107/s0021889803005077 |
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