Oleoscience

Formation of Microscopic Structures in Molecular Films at Soft Interfaces

Ken-ichi IIMURA

2012 Volume 12 Issue 1 Pages 3-9
Published: 2012
Released on J-STAGE: February 01, 2015

DOIhttps://doi.org/10.5650/oleoscience.12.3

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Two-dimensionally organized structures formed in monolayers of amphiphilic molecules at the air/water interface, as well as their in situ observation techniques and formation mechanisms, are described after brief explanation of how to prepare the monolayers and interpretation of surface balance isotherms. Some examples of molecular arrangement and orientation evaluation using a grazing incidence X-ray diffraction (GIXD) technique are also mentioned. Various kinds of organized molecular structures are formed by diverse effects arising from intermolecular interactions at the air/water interface.

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X-ray Absorption Fine Structure

Hajime TANIDA , Makoto HARADA, Takanori TAKIUE , Hirohisa NAGATANI

2012 Volume 12 Issue 1 Pages 11-16
Published: 2012
Released on J-STAGE: February 01, 2015

DOIhttps://doi.org/10.5650/oleoscience.12.11

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X-ray absorption fine structure (XAFS) at the liquid/liquid (oil/water) interface has been recently developed to elucidate the molecular structure of the interfacial species. It reveals the concentration, valence state, molecular orientation, and solvation structure of the chemical spices at the interface. Here we describe the results for bromide and zinc ions at hexane-water and heptane/water interfaces.

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Precise Structural Analysis of Molecular Layer at Soft Interface II : X-ray Reflectometry

Hideki MATSUOKA

2012 Volume 12 Issue 1 Pages 17-23
Published: 2012
Released on J-STAGE: February 01, 2015

DOIhttps://doi.org/10.5650/oleoscience.12.17

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X-ray reflectometry is very useful technique for in situ nanostructure analysis of surfaces and interfaces with very high accuracy. Its principle and application to monolayer of ionic amphiphilic diblock copolymer at the air/water interface are described. Especially, information on the nanostructure and its transition of polyelectrolyte brush under the water could be quantitatively obtained. As a result, the differences of brush formation mechanism and response to added salt were clarified.

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The State of the Art and Perspective of Structural Study on Skin Stratum Cormeum

Ichiro HATTA

2012 Volume 12 Issue 1 Pages 25-32
Published: 2012
Released on J-STAGE: February 01, 2015

DOIhttps://doi.org/10.5650/oleoscience.12.25

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Based upon the wide q-range X-ray scattering study on stratum corneum, I will introduce that not only the structure of the intercellular lipid matrix but also the structure of soft keratin in the corneocytes plays an important role in function of the stratum corneum.

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[title in Japanese]

[in Japanese]

2012 Volume 12 Issue 1 Pages 33-35
Published: 2012
Released on J-STAGE: February 01, 2015

DOIhttps://doi.org/10.5650/oleoscience.12.33

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