Biocompatible lecithin organogels: Structure and phase equilibria

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Biocompatible lecithin organogels: Structure and phase equilibria. / Angelico, R; Ceglie, A; Colafemmina, G; Lopez, F; Murgia, S; Olsson, Ulf; Palazzo, G.

In: Langmuir, Vol. 21, No. 1, 2005, p. 140-148.

Research output: Contribution to journalArticle

Harvard

Angelico, R, Ceglie, A, Colafemmina, G, Lopez, F, Murgia, S, Olsson, U & Palazzo, G 2005, 'Biocompatible lecithin organogels: Structure and phase equilibria', Langmuir, vol. 21, no. 1, pp. 140-148. https://doi.org/10.1021/la047974f

APA

Angelico, R., Ceglie, A., Colafemmina, G., Lopez, F., Murgia, S., Olsson, U., & Palazzo, G. (2005). Biocompatible lecithin organogels: Structure and phase equilibria. Langmuir, 21(1), 140-148. https://doi.org/10.1021/la047974f

CBE

Angelico R, Ceglie A, Colafemmina G, Lopez F, Murgia S, Olsson U, Palazzo G. 2005. Biocompatible lecithin organogels: Structure and phase equilibria. Langmuir. 21(1):140-148. https://doi.org/10.1021/la047974f

MLA

Vancouver

Angelico R, Ceglie A, Colafemmina G, Lopez F, Murgia S, Olsson U et al. Biocompatible lecithin organogels: Structure and phase equilibria. Langmuir. 2005;21(1):140-148. https://doi.org/10.1021/la047974f

Author

Angelico, R ; Ceglie, A ; Colafemmina, G ; Lopez, F ; Murgia, S ; Olsson, Ulf ; Palazzo, G. / Biocompatible lecithin organogels: Structure and phase equilibria. In: Langmuir. 2005 ; Vol. 21, No. 1. pp. 140-148.

RIS

TY - JOUR

T1 - Biocompatible lecithin organogels: Structure and phase equilibria

AU - Angelico, R

AU - Ceglie, A

AU - Colafemmina, G

AU - Lopez, F

AU - Murgia, S

AU - Olsson, Ulf

AU - Palazzo, G

PY - 2005

Y1 - 2005

N2 - The microstructure of organogels formed upon the addition of tiny amounts of water to a solution of lecithin in fatty acid esters (viz. isopropylpalmitate and ethyloleate) was investigated by means of molecular self-diffusion measurements. In both systems lecithin and water form disconnected cylindrical reverse micelles. The ternary phase map for the lecithin/water/isopropylpalmitate has been investigated in detail. The organogel exists in a narrow region close to the lecithin-oil binary axis; for higher water content equilibrium between lamellae and reverse micelles is found. Lamellar phase occupies the lecithin-rich region, close to the lecithin corner (with the exception of a small island of hexagonal phase) and coexists with neat water close to the water-lecithin axis. The remaining part of the phase map shows the three-phase coexistence of water, oil, and lamellar phase.

AB - The microstructure of organogels formed upon the addition of tiny amounts of water to a solution of lecithin in fatty acid esters (viz. isopropylpalmitate and ethyloleate) was investigated by means of molecular self-diffusion measurements. In both systems lecithin and water form disconnected cylindrical reverse micelles. The ternary phase map for the lecithin/water/isopropylpalmitate has been investigated in detail. The organogel exists in a narrow region close to the lecithin-oil binary axis; for higher water content equilibrium between lamellae and reverse micelles is found. Lamellar phase occupies the lecithin-rich region, close to the lecithin corner (with the exception of a small island of hexagonal phase) and coexists with neat water close to the water-lecithin axis. The remaining part of the phase map shows the three-phase coexistence of water, oil, and lamellar phase.

U2 - 10.1021/la047974f

DO - 10.1021/la047974f

M3 - Article

VL - 21

SP - 140

EP - 148

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 1

ER -