Cryo-field emission scanning electron microscopy imaging of a rigid surfactant mesophase.

Langmuir : the ACS Journal of Surfaces and Colloids
Grace TanArijit Bose

Abstract

The aerosol OT/ L-alpha-phosphatidylcholine/isooctane/water system forms a rigid mesophase that transitions from reverse hexagonal to multilamellar in structure at specific water contents. This study shows that characteristics of ordered liquid-crystalline mesophases can be distinguished and imaged in high clarity using cryo-field emission scanning electron microscopy (cryo-FESEM). The reverse hexagonal phase consists of bundles of long cylinders, some with length scales of over 2 microm, that are randomly oriented as part of a larger domain. Cryo-imaging allows the visualization of the intercylinder spacings and the details of transitions from one domain to another. The multilamellar structured mesophase consists of spherical vesicles of 100 nm to 10 microm in diameter, with intervening noncrystalline isotropic regions. Coexistence regions containing both the reverse hexagonal and lamellar structures are also observed in the transition from the reverse hexagonal to the lamellar phase. These results complement and qualitatively verify our earlier studies with small-angle neutron scattering, high-field nuclear magnetic resonance spectroscopy, and freeze-fracture direct imaging transmission electron microscopy. The information is...Continue Reading

References

Jun 22, 1999·Nature·R OdaF C MacKintosh
Feb 26, 2004·Journal of the American Chemical Society·Limin LiuArijit Bose
Nov 3, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·Mohit SinghGary L McPherson
Mar 5, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Vivek AgarwalArijit Bose
Apr 20, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Limin LiuArijit Bose
Feb 8, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Mohit SinghArijit Bose
Jul 21, 2006·The Journal of Physical Chemistry. B·Limin ZhaiLungjun Zhang
Jul 21, 2006·The Journal of Physical Chemistry. B·James Faeder, Branka M Ladanyi
Oct 13, 2006·The Journal of Physical Chemistry. B·Christopher L KitchensChristopher B Roberts
Jan 17, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Dima LibsterNissim Garti
Jul 30, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Limin LiuArijit Bose

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Citations

Jun 14, 2012·European Journal of Pharmaceutics and Biopharmaceutics : Official Journal of Arbeitsgemeinschaft Für Pharmazeutische Verfahrenstechnik E.V·Fitsum F SahleReinhard H H Neubert
Feb 25, 2015·Advances in Colloid and Interface Science·Charlotte M BeddoesWuge H Briscoe
Mar 30, 2019·Biomedical Microdevices·Simone PisanoGareth D Healey
Apr 15, 2018·Journal of Colloid and Interface Science·Olasehinde OwoseniVijay T John
Oct 27, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Liron Bitan-CherbakovskyNissim Garti
Jun 2, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Xiangcun LiJayashri Sarkar
Jun 29, 2021·Frontiers in Cell and Developmental Biology·Anna C PhamBen J Boyd
Feb 1, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Sören GroßkopfThomas Hellweg

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