Aqueous dispersions of the phospholipid dioctanoylphosphatidylcholine (diC8PC) phase separate below a cloud point temperature, depending on lipid concentration. The lower phase is viscous and rich in lipid. The structure and dynamics of this system were explored via Cryo-TEM, SAXS, and NMR. The lower phase comprises a highly interconnected tridimensional network of wormlike micelles. A molecular mechanism for the phase separation is suggested.
Interconnected networks: structural and dynamic characterization of aqueous dispersions of dioctanoylphosphatidylcholine / P.Lo Nostro; S.Murgia; M.Lagi; E.Fratini; G.Karlsson; M.Almgren; M.Monduzzi; B.Ninham; P.Baglioni. - In: JOURNAL OF PHYSICAL CHEMISTRY. B, CONDENSED MATTER, MATERIALS, SURFACES, INTERFACES & BIOPHYSICAL. - ISSN 1520-6106. - STAMPA. - 112:(2008), pp. 12625-12634. [10.1021/jp803983t]
Interconnected networks: structural and dynamic characterization of aqueous dispersions of dioctanoylphosphatidylcholine
LO NOSTRO, PIERANDREA;FRATINI, EMILIANO;BAGLIONI, PIERO
2008
Abstract
Aqueous dispersions of the phospholipid dioctanoylphosphatidylcholine (diC8PC) phase separate below a cloud point temperature, depending on lipid concentration. The lower phase is viscous and rich in lipid. The structure and dynamics of this system were explored via Cryo-TEM, SAXS, and NMR. The lower phase comprises a highly interconnected tridimensional network of wormlike micelles. A molecular mechanism for the phase separation is suggested.
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