Influence of palmitic acid and hexadecanol on the phase transition temperature and molecular packing of dipalmitoylphosphatidyl-choline monolayers at the air-water interface

Ka Yee C. Lee; Ajaykumar Gopal; Anja Von Nahmen; Joseph A. Zasadzinski; Jaroslaw Majewski; Gregory S. Smith; Paul B. Howes; Kristian Kjaer

doi:10.1063/1.1420730

Influence of palmitic acid and hexadecanol on the phase transition temperature and molecular packing of dipalmitoylphosphatidyl-choline monolayers at the air-water interface

Ka Yee C. Lee, Ajaykumar Gopal, Anja Von Nahmen, Joseph A. Zasadzinski, Jaroslaw Majewski, Gregory S. Smith, Paul B. Howes, Kristian Kjaer

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108 Scopus citations

Abstract

The influence of hexadecanol (HD) and palmitic acid (PA) on the molecular packing and phase transition temperature of dipalmitoylphosphatidyl-choline (DPCC) monolayers was investigated at the air-water interfaces. The morphology and phase behavior of DPCC/HD monolayers and mixed DPCC/PA was determined by fluorescence microscopy and pressure-area-isotherms. The temperature of the liquid-expanded to condensed phase transition was increased by the addition of PA or HD to DPCC monolayers. The increase in amount of the single chain surfactant lead to a reduction in tilt angle of the aliphatic chains at a surface pressure of 40 mN/m.

Original language	English (US)
Pages (from-to)	774-783
Number of pages	10
Journal	Journal of Chemical Physics
Volume	116
Issue number	2
DOIs	https://doi.org/10.1063/1.1420730
State	Published - Jan 8 2002
Externally published	Yes

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Lee, K. Y. C., Gopal, A., Von Nahmen, A., Zasadzinski, J. A., Majewski, J., Smith, G. S., Howes, P. B., & Kjaer, K. (2002). Influence of palmitic acid and hexadecanol on the phase transition temperature and molecular packing of dipalmitoylphosphatidyl-choline monolayers at the air-water interface. Journal of Chemical Physics, 116(2), 774-783. https://doi.org/10.1063/1.1420730

Influence of palmitic acid and hexadecanol on the phase transition temperature and molecular packing of dipalmitoylphosphatidyl-choline monolayers at the air-water interface. / Lee, Ka Yee C.; Gopal, Ajaykumar; Von Nahmen, Anja et al.
In: Journal of Chemical Physics, Vol. 116, No. 2, 08.01.2002, p. 774-783.

Research output: Contribution to journal › Article › peer-review

Lee, KYC, Gopal, A, Von Nahmen, A, Zasadzinski, JA, Majewski, J, Smith, GS, Howes, PB & Kjaer, K 2002, 'Influence of palmitic acid and hexadecanol on the phase transition temperature and molecular packing of dipalmitoylphosphatidyl-choline monolayers at the air-water interface', Journal of Chemical Physics, vol. 116, no. 2, pp. 774-783. https://doi.org/10.1063/1.1420730

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abstract = "The influence of hexadecanol (HD) and palmitic acid (PA) on the molecular packing and phase transition temperature of dipalmitoylphosphatidyl-choline (DPCC) monolayers was investigated at the air-water interfaces. The morphology and phase behavior of DPCC/HD monolayers and mixed DPCC/PA was determined by fluorescence microscopy and pressure-area-isotherms. The temperature of the liquid-expanded to condensed phase transition was increased by the addition of PA or HD to DPCC monolayers. The increase in amount of the single chain surfactant lead to a reduction in tilt angle of the aliphatic chains at a surface pressure of 40 mN/m.",

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Influence of palmitic acid and hexadecanol on the phase transition temperature and molecular packing of dipalmitoylphosphatidyl-choline monolayers at the air-water interface

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