Interaction of DPPC monolayers with soluble surfactants

electrostatic effects of membrane perturbants

Cary W. McConlogue, Daniel Malamud, T. Kyle Vanderlick

Research output: Contribution to journalArticle

Abstract

We studied the effects of four soluble surfactants on DPPC monolayers to elucidate the action of these membrane perturbants. The presence of nonionic N-9 and amphoteric C31G strongly affected the pure DPPC isotherm, while anionic SDS and cationic DTAB had little effect. The impact of surfactant on DPPC domain shape in the liquid condensed-liquid expanded coexistence region showed the opposite result. Neutral surfactants had minimal effect on the shape of DPPC domains; charged surfactants, on the other hand, induced a new shape transition at high surface pressures previously unreported for DPPC domains. All of these results are discussed with particular attention given to electrostatic effects at the interface. Copyright (C) 1998 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)124-134
Number of pages11
JournalBBA - Biomembranes
Volume1372
Issue number1
DOIs
StatePublished - Jun 24 1998

Fingerprint

Static Electricity
Surface-Active Agents
Electrostatics
Monolayers
Membranes
Liquids
Isotherms
Pressure

Keywords

  • Air/water monolayer
  • Domain shape
  • Electrostatics
  • Isotherm
  • Soluble surfactant

ASJC Scopus subject areas

  • Biochemistry
  • Cell Biology
  • Biophysics

Cite this

Interaction of DPPC monolayers with soluble surfactants : electrostatic effects of membrane perturbants. / McConlogue, Cary W.; Malamud, Daniel; Vanderlick, T. Kyle.

In: BBA - Biomembranes, Vol. 1372, No. 1, 24.06.1998, p. 124-134.

Research output: Contribution to journalArticle

@article{7fbed7fa3da7410dbc2c37f556458274,
title = "Interaction of DPPC monolayers with soluble surfactants: electrostatic effects of membrane perturbants",
abstract = "We studied the effects of four soluble surfactants on DPPC monolayers to elucidate the action of these membrane perturbants. The presence of nonionic N-9 and amphoteric C31G strongly affected the pure DPPC isotherm, while anionic SDS and cationic DTAB had little effect. The impact of surfactant on DPPC domain shape in the liquid condensed-liquid expanded coexistence region showed the opposite result. Neutral surfactants had minimal effect on the shape of DPPC domains; charged surfactants, on the other hand, induced a new shape transition at high surface pressures previously unreported for DPPC domains. All of these results are discussed with particular attention given to electrostatic effects at the interface. Copyright (C) 1998 Elsevier Science B.V.",
keywords = "Air/water monolayer, Domain shape, Electrostatics, Isotherm, Soluble surfactant",
author = "McConlogue, {Cary W.} and Daniel Malamud and Vanderlick, {T. Kyle}",
year = "1998",
month = "6",
day = "24",
doi = "10.1016/S0005-2736(98)00052-2",
language = "English (US)",
volume = "1372",
pages = "124--134",
journal = "Biochimica et Biophysica Acta - Biomembranes",
issn = "0005-2736",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Interaction of DPPC monolayers with soluble surfactants

T2 - electrostatic effects of membrane perturbants

AU - McConlogue, Cary W.

AU - Malamud, Daniel

AU - Vanderlick, T. Kyle

PY - 1998/6/24

Y1 - 1998/6/24

N2 - We studied the effects of four soluble surfactants on DPPC monolayers to elucidate the action of these membrane perturbants. The presence of nonionic N-9 and amphoteric C31G strongly affected the pure DPPC isotherm, while anionic SDS and cationic DTAB had little effect. The impact of surfactant on DPPC domain shape in the liquid condensed-liquid expanded coexistence region showed the opposite result. Neutral surfactants had minimal effect on the shape of DPPC domains; charged surfactants, on the other hand, induced a new shape transition at high surface pressures previously unreported for DPPC domains. All of these results are discussed with particular attention given to electrostatic effects at the interface. Copyright (C) 1998 Elsevier Science B.V.

AB - We studied the effects of four soluble surfactants on DPPC monolayers to elucidate the action of these membrane perturbants. The presence of nonionic N-9 and amphoteric C31G strongly affected the pure DPPC isotherm, while anionic SDS and cationic DTAB had little effect. The impact of surfactant on DPPC domain shape in the liquid condensed-liquid expanded coexistence region showed the opposite result. Neutral surfactants had minimal effect on the shape of DPPC domains; charged surfactants, on the other hand, induced a new shape transition at high surface pressures previously unreported for DPPC domains. All of these results are discussed with particular attention given to electrostatic effects at the interface. Copyright (C) 1998 Elsevier Science B.V.

KW - Air/water monolayer

KW - Domain shape

KW - Electrostatics

KW - Isotherm

KW - Soluble surfactant

UR - http://www.scopus.com/inward/record.url?scp=0032562982&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032562982&partnerID=8YFLogxK

U2 - 10.1016/S0005-2736(98)00052-2

DO - 10.1016/S0005-2736(98)00052-2

M3 - Article

VL - 1372

SP - 124

EP - 134

JO - Biochimica et Biophysica Acta - Biomembranes

JF - Biochimica et Biophysica Acta - Biomembranes

SN - 0005-2736

IS - 1

ER -