Surfactants in membrane solubilisation

Jones, Malcolm N.

doi:10.1016/s0378-5173(98)00345-7

Cited by 178 publications

(126 citation statements)

References 98 publications

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“…1,2,3,4) (Rosen 2004;Zana 1995;Zdziennicka et al 2012;Czerniawski 1966;Carpena et al 2002;Barchlui and Pottel 1994;Das and Das 2009;Nagarajan and Wang 2000;Kumbhakar et al 2004;Rhabi and Winnik 2001;Musselman and Chander 2002;Jones 1999;Yano 2005;Kahlweit et al 1991). In the range of ethanol concentration in which it can form small aggregates in the solution, the contact angle values practically do not depend on the composition and concentration of the surfactant mixture.…”

Section: Contact Angle Isothermsmentioning

confidence: 93%

Adsorption of Triton X-100 and cetyltrimethylammonium bromide mixture with ethanol at nylon-6–solution interface with regard to nylon-6 wettability: I. The effect of adsorption on critical surface tension of nylon-6 wetting

2013

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The contact angle measurements of the aqueous solutions of p-(1,1,3,3-tetramethylbutyl)phenoxypoly(ethylene glycol) (TX-100) and cetyltrimethylammonium bromide (CTAB) mixture with ethanol on nylon-6 were made in the range of the total concentration of CTAB and TX-100 mixture from 1 9 10 -6 to 1 9 10 -3 M and ethanol from 0 to 17.13 M. In the CTAB and TX-100 mixture the mole fraction of TX-100 was equal to 0; 0.2; 0.4; 0.6; 0.8 and 1. On the basis of the obtained results, the critical surface tension of nylon-6 wetting was determined from the dependence of cosine of contact angle and the adhesion tension as a function of the surface tension of the solution. This tension was compared to the components and parameters of nylon-6 surface tension taken from literature and discussed in the light of the surface excess concentration of the surface active agents at the nylon-6-solution interface calculated from the Lucassen-Reynders equation and the Gibbs isotherm.

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Section: Contact Angle Isothermsmentioning

confidence: 93%

Adsorption of Triton X-100 and cetyltrimethylammonium bromide mixture with ethanol at nylon-6–solution interface with regard to nylon-6 wettability: I. The effect of adsorption on critical surface tension of nylon-6 wetting

2013

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“…Several proteins, such as receptors and ion channels, can be extracted from cellular systems and reconstituted into a synthetic lipid host environment (29)(30)(31). Similarly, other proteins and lipids can be directly extracted from biological cells (28).…”

Section: Functionalization Of Membrane Networkmentioning

confidence: 99%

Chemical Analysis in Nanoscale Surfactant Networks

Karlsson¹,

Ewing²,

Dommersnes³

et al. 2006

Anal. Chem.

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A lthough the "hard matter" physical sciences (e.g., microelectronics) and the "soft matter" biological sciences (e.g. cell biology and molecular biology) are two distinct areas of research, they are now progressively being combined to create new systems and devices with applications in analytical chemistry. Miniaturization is one of the important factors here: A major goal is to create devices that can operate with high sensitivity and resolution on length scales and time frames relevant to single-molecule studies. Using top-down strategies to fabricate ultrasmall structures is technologically challenging. Therefore, new bottom-up methods of nanoscale fabrication based on self-assembly and self-organization of biological or biomimetic materials are constantly being developed (1-6). The type of nanoscale engineering described in this article has, at least partly, been derived from our growing understanding of living cells, where many nanomechanical and chemical operations are based on controlled shape transitions in surfactant bilayer membranes that also carry proteins to support important functions. Biological cells have a staggering ability to parallel-process multiple chemical reactions and physical (e.g., transport) processes in nanometer-sized systems and to perform a great number of tasks based on single-molecule processes. Thus, nature has solved many engineering problems on small length scales and achieved truly nanoscale, complex chemical devices that can be used for computational, biophysical, synthetic, and analytical applications (7-11). The philosophy behind the work reviewed here is to produce human-made, biomimetic systems that imitate some key features of small biological systems with the overall goal of providing micro-and nanoscale devices that can perform complex chemical operations.

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“…1 However, the bioactivity of these compounds, especially the anionic surfactants, are not satisfactorily described in the literature. Anionic surfactants are denaturating agents, the denaturation of proteins by sodium dodecylsulfate happens at millimolar concentrations.…”

Section: Introductionmentioning

confidence: 99%

“…1,5,10 However, this information does not allow prediction of the activity that these compounds might have on a living cell, since bioactivity depends on complex interactions between the surfactant, the cellular membrane, extrinsic and intrinsic proteins, enzymes, organelles etc. The study of the effects of chemical compounds on living cells, in real time, became possible with the introduction of the flow calorimetric technique for the evaluation of the biological activity of drugs and monitoring of biological processes.…”

Section: Introductionmentioning

confidence: 99%

“…Anionic surfactants are denaturating agents, the denaturation of proteins by sodium dodecylsulfate happens at millimolar concentrations. 1 Many studies on the interaction of anionic surfactants with isolated biomolecules are described in the literature, however, little is known about the effects of of this class of surfactants on living cells. According to Denyer 2 the possible targets of action of the bactericidal agents are the cell wall, cytoplasmatic membrane and the cytoplasm.…”

Section: Introductionmentioning

confidence: 99%

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Calorimetric study of the antibacterial activity of sodium n-alkylsulfates on the metabolism of Chromobacterium violaceum

Perles¹,

Volpe²

2005

J. Braz. Chem. Soc.

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A bioatividade de n-alquilsulfatos (C 6 -C 10 e C 12 ) foi estudada utilizando-se calorimetria de fluxo em tempo real, para monitorar a resposta biológica (BR) produzida pelo metabolismo aeróbico da bactéria Chromobacterium violaceum. Todos os compostos apresentaram um comportamento linear no gráfico de BR vs. log (dose). Destes gráficos, foi calculado o valor de (dose) max para cada composto. O valor de (dose) max , que está diretamente relacionado com a biotividade, permitiu uma boa correlação entre esta propriedade e a estrutura da molécula, mostrando que a atividade biológica é diretamente proporcional à lipofilicidade dos compostos.The bioactivity of a series of sodium n-alkylsulfates (C 6 -C 10 and C 12 ) was studied with flow calorimetry to follow in real time the calorimetric effect on the metabolic rate of the bacterium Chromobacterium violaceum. All the compounds showed a linear plot of the fraction of control metabolic heat rate against log (dose). From these plots the value of dose max (the dose producing zero metabolic heat rate) for each compound was evaluated. The value of dose max is correlated with the chain length of the molecule, showing that their biological activity is directly proportional to the lipophilicity of the compound.

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Surfactants in membrane solubilisation

Cited by 178 publications

References 98 publications

Adsorption of Triton X-100 and cetyltrimethylammonium bromide mixture with ethanol at nylon-6–solution interface with regard to nylon-6 wettability: I. The effect of adsorption on critical surface tension of nylon-6 wetting

Adsorption of Triton X-100 and cetyltrimethylammonium bromide mixture with ethanol at nylon-6–solution interface with regard to nylon-6 wettability: I. The effect of adsorption on critical surface tension of nylon-6 wetting

Chemical Analysis in Nanoscale Surfactant Networks

Calorimetric study of the antibacterial activity of sodium n-alkylsulfates on the metabolism of Chromobacterium violaceum

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