Phospholipid-opiate interactions measured by differential scanning calorimetry and compression isotherms of monolayers

Ma A. Busquets; C. Mestres; S. Bordas; F. Reig; M. A. Alsina; J. M. García-Antón

doi:10.1016/0040-6031(91)80121-X

Phospholipid-opiate interactions measured by differential scanning calorimetry and compression isotherms of monolayers

Ma A. Busquets^*, C. Mestres, S. Bordas, F. Reig, M. A. Alsina, J. M. García-Antón

^*Corresponding author for this work

Research output: Indexed journal article › Article › peer-review

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Abstract

The interactions between synthetic lecithins (DMPC and DPPC) and meperidine, methadone and naloxone were determined by means of differential scanning calorimetry and monomolecular layers. The results of the calorimetric measurements show that only for the most hydrophobic molecules do hydrophobic interactions have a significant value. Naloxone and meperidine interact mainly electrostatically with the polar head groups of DMPC and DPPC. Similar behaviour was observed when studying the compression isotherms of PC lipid monolayers in the presence of these opiates and the penetration kinetics of the same molecules in monolayers. Moreover the differently ordered states of the molecules in monolayers, gel phase (DPPC) or liquid crystalline phase (PC) at room temperature greatly influences their interaction with opiate molecules.

Original language	English
Pages (from-to)	99-109
Number of pages	11
Journal	Thermochimica Acta
Volume	185
Issue number	1
DOIs	https://doi.org/10.1016/0040-6031(91)80121-X
Publication status	Published - 21 Aug 1991
Externally published	Yes

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title = "Phospholipid-opiate interactions measured by differential scanning calorimetry and compression isotherms of monolayers",

abstract = "The interactions between synthetic lecithins (DMPC and DPPC) and meperidine, methadone and naloxone were determined by means of differential scanning calorimetry and monomolecular layers. The results of the calorimetric measurements show that only for the most hydrophobic molecules do hydrophobic interactions have a significant value. Naloxone and meperidine interact mainly electrostatically with the polar head groups of DMPC and DPPC. Similar behaviour was observed when studying the compression isotherms of PC lipid monolayers in the presence of these opiates and the penetration kinetics of the same molecules in monolayers. Moreover the differently ordered states of the molecules in monolayers, gel phase (DPPC) or liquid crystalline phase (PC) at room temperature greatly influences their interaction with opiate molecules.",

author = "Busquets, {Ma A.} and C. Mestres and S. Bordas and F. Reig and Alsina, {M. A.} and Garc{\'i}a-Ant{\'o}n, {J. M.}",

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T1 - Phospholipid-opiate interactions measured by differential scanning calorimetry and compression isotherms of monolayers

AU - Busquets, Ma A.

AU - Mestres, C.

AU - Bordas, S.

AU - Reig, F.

AU - Alsina, M. A.

AU - García-Antón, J. M.

PY - 1991/8/21

Y1 - 1991/8/21

N2 - The interactions between synthetic lecithins (DMPC and DPPC) and meperidine, methadone and naloxone were determined by means of differential scanning calorimetry and monomolecular layers. The results of the calorimetric measurements show that only for the most hydrophobic molecules do hydrophobic interactions have a significant value. Naloxone and meperidine interact mainly electrostatically with the polar head groups of DMPC and DPPC. Similar behaviour was observed when studying the compression isotherms of PC lipid monolayers in the presence of these opiates and the penetration kinetics of the same molecules in monolayers. Moreover the differently ordered states of the molecules in monolayers, gel phase (DPPC) or liquid crystalline phase (PC) at room temperature greatly influences their interaction with opiate molecules.

AB - The interactions between synthetic lecithins (DMPC and DPPC) and meperidine, methadone and naloxone were determined by means of differential scanning calorimetry and monomolecular layers. The results of the calorimetric measurements show that only for the most hydrophobic molecules do hydrophobic interactions have a significant value. Naloxone and meperidine interact mainly electrostatically with the polar head groups of DMPC and DPPC. Similar behaviour was observed when studying the compression isotherms of PC lipid monolayers in the presence of these opiates and the penetration kinetics of the same molecules in monolayers. Moreover the differently ordered states of the molecules in monolayers, gel phase (DPPC) or liquid crystalline phase (PC) at room temperature greatly influences their interaction with opiate molecules.

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U2 - 10.1016/0040-6031(91)80121-X

DO - 10.1016/0040-6031(91)80121-X

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JO - Thermochimica Acta

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IS - 1

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Phospholipid-opiate interactions measured by differential scanning calorimetry and compression isotherms of monolayers

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