New Phase Formation of Dimyristoylphosphatidylglycerol Bilayer-Assembly with Sodium or Ammonium Ions: Gelation Phenomena in the Lamellar Liquid Crystals Aged in Water

The thermal properties of lamellar phases of dimyristoylphosphatidylglycerol (DMPG) bilayer-assemblies with counter ions of Na+ and NH4+ are remarkably different. However, these lamellar phases of NaDMPG and NH4DMPG in water have been found to undergo a new gelation in common when they are aged for...

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Veröffentlicht in:Chemistry letters 2002, Vol.31 (1), p.50-51
Hauptverfasser: Tajima, Kazuo, Tsutsui, Takahiro, Imai, Yoko, Nakamura, Akio, Koshinuma, Masakatsu
Format: Artikel
Sprache:eng
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Zusammenfassung:The thermal properties of lamellar phases of dimyristoylphosphatidylglycerol (DMPG) bilayer-assemblies with counter ions of Na+ and NH4+ are remarkably different. However, these lamellar phases of NaDMPG and NH4DMPG in water have been found to undergo a new gelation in common when they are aged for a couple of weeks below 40 °C. The new gel phases named Gel-2 reversibly change to the corresponding liquid crystal phases (LC-2) at transition temperatures (TI) of 40 °C for NaDMPG and 44 °C for NH4DMPG, respectively.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2002.50