Micellar and bicontinuous microemulsion structures show different solute-solvent interactions: a case study using ultrafast nonlinear infrared spectroscopy

Physical Chemistry Chemical Physics : PCCP
Jinger ZangJianping Wang

Abstract

Microemulsions are transparent, thermodynamically stable liquid mixtures of oil, water and surfactant. They typically exist in the form of micellar and bicontinuous structures, which appear to be equilibrium systems but are actually complex in structure and are difficult to characterize at the molecular level. In this work, potassium ferrocyanide [K4Fe(CN)6] and tungsten hexacarbonyl [W(CO)6] were chosen as two probe molecules for water and organic phases respectively to simultaneously explore the structures and dynamics of commonly prepared reverse micellar and bicontinuous microemulsion structures using aerosol OT (AOT) as the surfactant and isooctane as the oil phase. Even though these two structures have quite different solvent environments due to the varying geometry and boundary conditions, the steady-state infrared spectra of the C[triple bond, length as m-dash]N- stretching mode in the water phase are quite similar, and so are those of the C[triple bond, length as m-dash]O stretching mode in the oil phase. However, vibrational and anisotropic relaxation dynamics obtained from infrared pump-probe spectroscopy and spectral diffusion dynamics extracted from two-dimensional infrared spectroscopy of the two infrared chromoph...Continue Reading

References

Jul 21, 2004·The Journal of Chemical Physics·Gerald M SandoJ C Owrutsky
Jul 26, 2005·Proceedings of the National Academy of Sciences of the United States of America·Yung Sam Kim, Robin M Hochstrasser
Sep 2, 2005·Proceedings of the National Academy of Sciences of the United States of America·J D EavesP L Geissler
Mar 28, 2008·Chemical Reviews·Minhaeng Cho
Mar 29, 2008·The Journal of Physical Chemistry. B·Sungnam ParkM D Fayer
Jun 19, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Cosima StubenrauchIseult Lynch
Jul 10, 2009·The Journal of Chemical Physics·David E MoilanenMichael D Fayer
Jul 20, 2010·Annual Review of Analytical Chemistry·Michael D Fayer, Nancy E Levinger
Aug 10, 2010·The Journal of Physical Chemistry. B·Adam W SmithJasper Knoester
Feb 12, 2011·International Journal of Pharmaceutics·Judith KuntscheHeike Bunjes
Mar 23, 2011·Accounts of Chemical Research·Michael D Fayer
Mar 2, 2012·The Journal of Physical Chemistry. B·John T KingKevin J Kubarych
May 11, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Ranajay SahaSamir Kumar Pal
Sep 1, 2012·The Journal of Physical Chemistry. B·Daniel G KurodaRobin M Hochstrasser
Feb 16, 2013·The Journal of Physical Chemistry. B·Hyewon SonSungnam Park
Feb 21, 2013·Nature Chemistry·Daniel G KurodaRobin M Hochstrasser
Mar 8, 2013·Journal of the American Chemical Society·S K Karthick KumarMichael D Fayer
Jul 17, 2013·The Journal of Physical Chemistry. B·Prabhat K SinghRobin M Hochstrasser
Aug 29, 2013·The Journal of Physical Chemistry. B·Artem A BakulinMaxim S Pshenichnikov
Mar 4, 2014·The Journal of Physical Chemistry. B·Pengyun YuJianping Wang
Apr 10, 2014·The Journal of Physical Chemistry. B·Ayanjeet GhoshFeng Gai
Jul 1, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Emanuela NegroGer J M Koper
Mar 20, 2015·Accounts of Chemical Research·Milan DelorJulia A Weinstein
Apr 4, 2015·Accounts of Chemical Research·Laura M KieferKevin J Kubarych
Jun 8, 2015·The Journal of Chemical Physics·Youssef El KhouryJens Bredenbeck
Jun 8, 2015·The Journal of Chemical Physics·Masaki OkudaKeisuke Tominaga
Oct 3, 2015·Science·Martin ThämerAndrei Tokmakoff
Nov 13, 2015·The Journal of Physical Chemistry. B·Somnath M KashidYung Sam Kim
Feb 16, 2016·Journal of the American Chemical Society·Santanu RoyJames L Skinner
Aug 12, 2016·The Journal of Physical Chemistry. B·Andrew J SchmitzMatthew J Tucker
Sep 13, 2016·The Journal of Physical Chemistry Letters·Laura M Kiefer, Kevin J Kubarych

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray
nuclear magnetic resonance
infrared spectroscopy

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.