A study of the emulsified microemulsion by SAXS, Cryo-TEM, SD-NMR, and electrical conductivity

Rachel Lutz; Abraham Aserin; Ellen J. Wachtel; Einav Ben-Shoshan; Dganit Danino; Nissim Garti

doi:10.1080/01932690701525452

A study of the emulsified microemulsion by SAXS, Cryo-TEM, SD-NMR, and electrical conductivity

Rachel Lutz, Abraham Aserin, Ellen J. Wachtel, Einav Ben-Shoshan, Dganit Danino, Nissim Garti^*

^*Corresponding author for this work

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

24 Scopus citations

Abstract

A water-in-oil microemulsion was further dispersed in an aqueous phase containing Pluronic F127 as a steric stabilizer, to form a specific type of double emulsion termed emulsified microemulsion (EME). The inner microemulsion phase was made from glycerol-monooleate (GMO), R(+)-limonene, ethanol and glycerol. SAXS (small x-ray scattering), PGSE-NMR (pulse gradient spin echo-NMR), electrical conductivity, and cryo-TEM (cryogenic-transmission electron microscopy) imaging techniques were used to confirm the existence of inner W/O nano-droplets after second emulsification step and upon EME aging. Spherical globules of EME without long-range internal order were observed by the SAXS measurements and the cryo-TEM images. The average globule size of about 200-300 nm remained intact for at least 6 months.

Original language	English
Pages (from-to)	1149-1157
Number of pages	9
Journal	Journal of Dispersion Science and Technology
Volume	28
Issue number	8
DOIs	https://doi.org/10.1080/01932690701525452
State	Published - Nov 2007
Externally published	Yes

Keywords

Cryo-TEM
Electrical conductivity
Emulsified microemulsion
Glycerol monooleate
L-phase
Microemulsion
SAXS
SD-NMR

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title = "A study of the emulsified microemulsion by SAXS, Cryo-TEM, SD-NMR, and electrical conductivity",

abstract = "A water-in-oil microemulsion was further dispersed in an aqueous phase containing Pluronic F127 as a steric stabilizer, to form a specific type of double emulsion termed emulsified microemulsion (EME). The inner microemulsion phase was made from glycerol-monooleate (GMO), R(+)-limonene, ethanol and glycerol. SAXS (small x-ray scattering), PGSE-NMR (pulse gradient spin echo-NMR), electrical conductivity, and cryo-TEM (cryogenic-transmission electron microscopy) imaging techniques were used to confirm the existence of inner W/O nano-droplets after second emulsification step and upon EME aging. Spherical globules of EME without long-range internal order were observed by the SAXS measurements and the cryo-TEM images. The average globule size of about 200-300 nm remained intact for at least 6 months.",

keywords = "Cryo-TEM, Electrical conductivity, Emulsified microemulsion, Glycerol monooleate, L-phase, Microemulsion, SAXS, SD-NMR",

author = "Rachel Lutz and Abraham Aserin and Wachtel, {Ellen J.} and Einav Ben-Shoshan and Dganit Danino and Nissim Garti",

note = "Funding Information: The cryo-TEM experiments were performed at the Cryo-TEM Hannah and George Krumholz Laboratory for Advanced Microscopy at the Technion. DD acknowledges the support of the Israel Academy of Sciences and Humanities (Grant No. 9059/03).",

year = "2007",

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doi = "10.1080/01932690701525452",

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AU - Lutz, Rachel

AU - Aserin, Abraham

AU - Wachtel, Ellen J.

AU - Ben-Shoshan, Einav

AU - Danino, Dganit

AU - Garti, Nissim

N1 - Funding Information: The cryo-TEM experiments were performed at the Cryo-TEM Hannah and George Krumholz Laboratory for Advanced Microscopy at the Technion. DD acknowledges the support of the Israel Academy of Sciences and Humanities (Grant No. 9059/03).

PY - 2007/11

Y1 - 2007/11

N2 - A water-in-oil microemulsion was further dispersed in an aqueous phase containing Pluronic F127 as a steric stabilizer, to form a specific type of double emulsion termed emulsified microemulsion (EME). The inner microemulsion phase was made from glycerol-monooleate (GMO), R(+)-limonene, ethanol and glycerol. SAXS (small x-ray scattering), PGSE-NMR (pulse gradient spin echo-NMR), electrical conductivity, and cryo-TEM (cryogenic-transmission electron microscopy) imaging techniques were used to confirm the existence of inner W/O nano-droplets after second emulsification step and upon EME aging. Spherical globules of EME without long-range internal order were observed by the SAXS measurements and the cryo-TEM images. The average globule size of about 200-300 nm remained intact for at least 6 months.

AB - A water-in-oil microemulsion was further dispersed in an aqueous phase containing Pluronic F127 as a steric stabilizer, to form a specific type of double emulsion termed emulsified microemulsion (EME). The inner microemulsion phase was made from glycerol-monooleate (GMO), R(+)-limonene, ethanol and glycerol. SAXS (small x-ray scattering), PGSE-NMR (pulse gradient spin echo-NMR), electrical conductivity, and cryo-TEM (cryogenic-transmission electron microscopy) imaging techniques were used to confirm the existence of inner W/O nano-droplets after second emulsification step and upon EME aging. Spherical globules of EME without long-range internal order were observed by the SAXS measurements and the cryo-TEM images. The average globule size of about 200-300 nm remained intact for at least 6 months.

KW - Cryo-TEM

KW - Electrical conductivity

KW - Emulsified microemulsion

KW - Glycerol monooleate

KW - L-phase

KW - Microemulsion

KW - SAXS

KW - SD-NMR

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DO - 10.1080/01932690701525452

M3 - 文章

AN - SCOPUS:35948987141

SN - 0193-2691

VL - 28

SP - 1149

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JO - Journal of Dispersion Science and Technology

JF - Journal of Dispersion Science and Technology

IS - 8

ER -

A study of the emulsified microemulsion by SAXS, Cryo-TEM, SD-NMR, and electrical conductivity

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Keywords

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