A model of pressure-induced interdigitation of phospholipid membranes

Autor:	Victor Levadny, Masahito Yamazaki, Vicente M. Aguilella
Rok vydání:	2002
Předmět:	Phase transition Membrane Chemistry Stereochemistry Phase (matter) Bilayer Hydrostatic pressure General Physics and Astronomy Thermodynamics Polar Lamellar structure Lipid bilayer phase behavior Physical and Theoretical Chemistry
Zdroj:	Chemical Physics Letters. 360:515-520
ISSN:	0009-2614
Popis:	The behaviour of lipid lamellae upon an applied hydrostatic pressure in different phase states is considered. We analyse the phase transitions from the bilayer phase states La or Lb0 to the interdigitated phase LbI. By considering separately the energies of chains and polar heads we obtain the expressions for the chemical potential of each state. The criteria for the existence of La or Lb0 states upon an applied pressure are derived. We conclude that the steeper increase of internal tension in the region of lipid heads in these states in comparison with the LbI one is the main physical cause of phase transitions to interdigitated phase upon an applied pressure. 2002 Published by Elsevier Science B.V.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1887b35f7a8cc3bf9b637adaab583207 https://doi.org/10.1016/s0009-2614(02)00839-4 Zobrazit plný text záznamu Full Text from ScienceDirect