Vesicles and micelles in mixtures of surfactant and amino acid hydrotropes

Eric W. Kaler; Yamaira I. González

Vesicles and micelles in mixtures of surfactant and amino acid hydrotropes

Eric W. Kaler, Yamaira I. González

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Abstract

Small unilamellar vesicles (100 nm in diameter) form spontaneously in aqueous mixtures of the amino acids histidine or lysine and sodium dodecyl benzenesulfonate. By manipulating pH, a gradual transition from micelles to vesicles to bilayers to precipitate is observed. The self-assembly of vesicles occurs over a wide range of compositions and is likely the result of attractive interactions between the negatively charged benzenesulfonate headgroups and the positively charged amido groups in the amino acids. Similar results are obtained when imidazole salt itself is used. A photoacid generator can be used to induce the transition with UV light.

Original language	English (US)
Title of host publication	05AIChE
Subtitle of host publication	2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings
Number of pages	1
State	Published - Dec 1 2005
Event	05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States Duration: Oct 30 2005 → Nov 4 2005

Other

Other	05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
Country/Territory	United States
City	Cincinnati, OH
Period	10/30/05 → 11/4/05

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title = "Vesicles and micelles in mixtures of surfactant and amino acid hydrotropes",

abstract = "Small unilamellar vesicles (100 nm in diameter) form spontaneously in aqueous mixtures of the amino acids histidine or lysine and sodium dodecyl benzenesulfonate. By manipulating pH, a gradual transition from micelles to vesicles to bilayers to precipitate is observed. The self-assembly of vesicles occurs over a wide range of compositions and is likely the result of attractive interactions between the negatively charged benzenesulfonate headgroups and the positively charged amido groups in the amino acids. Similar results are obtained when imidazole salt itself is used. A photoacid generator can be used to induce the transition with UV light.",

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year = "2005",

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AU - Kaler, Eric W.

AU - González, Yamaira I.

PY - 2005/12/1

Y1 - 2005/12/1

N2 - Small unilamellar vesicles (100 nm in diameter) form spontaneously in aqueous mixtures of the amino acids histidine or lysine and sodium dodecyl benzenesulfonate. By manipulating pH, a gradual transition from micelles to vesicles to bilayers to precipitate is observed. The self-assembly of vesicles occurs over a wide range of compositions and is likely the result of attractive interactions between the negatively charged benzenesulfonate headgroups and the positively charged amido groups in the amino acids. Similar results are obtained when imidazole salt itself is used. A photoacid generator can be used to induce the transition with UV light.

AB - Small unilamellar vesicles (100 nm in diameter) form spontaneously in aqueous mixtures of the amino acids histidine or lysine and sodium dodecyl benzenesulfonate. By manipulating pH, a gradual transition from micelles to vesicles to bilayers to precipitate is observed. The self-assembly of vesicles occurs over a wide range of compositions and is likely the result of attractive interactions between the negatively charged benzenesulfonate headgroups and the positively charged amido groups in the amino acids. Similar results are obtained when imidazole salt itself is used. A photoacid generator can be used to induce the transition with UV light.

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M3 - Conference contribution

AN - SCOPUS:33645557083

BT - 05AIChE

T2 - 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase

Y2 - 30 October 2005 through 4 November 2005

ER -

Vesicles and micelles in mixtures of surfactant and amino acid hydrotropes

Abstract

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