Oleoscience
Online ISSN : 2187-3461
Print ISSN : 1345-8949
ISSN-L : 1345-8949
Volume 12, Issue 12
Displaying 1-3 of 3 articles from this issue
  • Makoto YUASA
    2012 Volume 12 Issue 12 Pages 617-625
    Published: 2012
    Released on J-STAGE: February 24, 2015
    JOURNAL FREE ACCESS
    The author explains in detail for the sensor research detecting reactive oxygen species (ROS) in vivo and for the research of antioxidant and anticancer drug as the studies on ROS by means of biomimetic approaches. Firstly, in the sensor research, he creates the electrochemical sensor that it is possible to detect and determine the quantity of ROS such as superoxide anion radical (O2– ·) in situ. Then, he obtains the knowledge for pathology and physiological actions based on ROS in various model as ischemia-perfusion, ovulation, etc. Secondly, in the drug research, he creates the antioxidant and anticancer drug on the basis of superoxide dismutase (SOD) mimics. Then, he fabricates the nano-drug delivery system (n-DDS) having a potential to act as a carcinostatic agent.
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  • Kenichi SAKAI
    2012 Volume 12 Issue 12 Pages 627-633
    Published: 2012
    Released on J-STAGE: February 24, 2015
    JOURNAL FREE ACCESS
    Gemini surfactants are dimers of monomeric surfactants linked with a spacer at the level of headgroups. One of the key properties of gemini surfactants is the remarkably low critical micelle concentration (cmc) in aqueous media, which enables us to reduce the total consumption of surfactants in waterborne chemical products. Nevertheless, the number of commercially available gemini surfactants is very limited because of their serious cost problem. In order to facilitate the widespread use of gemini surfactants in a variety of applications, low-cost strategies for the synthesis and purification of gemini surfactants have been essentially required. On the basis of this background, we have recently developed oleic acid-based gemini surfactants (as cost-effective surfactants) and polymerizable gemini surfactants (as high-quality surfactants). In this review, key interfacial properties of these surfactants are presented. In addition, adsorption properties of gemini surfactants at solid/aqueous solution interfaces are reviewed.
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