Online ISSN : 1884-6440
Print ISSN : 0385-1036
ISSN-L : 0385-1036
44 巻, 3 号
選択された号の論文の10件中1~10を表示しています
特集:膜学会若手特集号
原 著
  • 小坂 秀斗, 中田 孝広, 田島 史郎, 上田 太郎, 後藤 雅宏
    2019 年 44 巻 3 号 p. 130-135
    発行日: 2019年
    公開日: 2019/06/08
    ジャーナル フリー
    Bioactive macromolecules are receiving great interest due to their versatile functions in living life, and especially, they have been extensively examined in medical application. In most cases, they are administered by mouth or injection, which accompanied with some drawbacks such as digestion in organs and the first–pass effect, etc. Although transdermal administration is a promising methodology that enables successful administration without these drawbacks, transdermal delivery of bioactive macromolecules is inhibited by a barrier function of Stratum Corneum (SC). To overcome the barrier function, we prepared reverse micelle formulation (RMF), in which bioactive macromolecules are encapsulated in reverse micelles. A model bioactive macromolecule, Heparinoid (HD), was successfully encapsulated inside the aqueous core of reverse micelles, and RMF was proven to be stable for more than 6 months at 40 ℃. RMF showed 100 times higher skin permeability of HD compared to its aqueous solution, which verifies the effectiveness of RMF as a transdermal administration carrier for bioactive macromolecules.
製品& 技術
  • 石橋 亮
    2019 年 44 巻 3 号 p. 136-139
    発行日: 2019年
    公開日: 2019/06/08
    ジャーナル 認証あり
    With the increasing threat of global water scarcity, reverse osmosis (RO) membrane is being accepted for the applications in desalination or waste water reuse. Moreover, the global water environmental is suffering from declining source water quality and increasing discharge requirements. As a solution, industrial water users are recycling and reusing more and more of limited water available to them. However, such water contains higher salts and organic contamination than fresh water sources, and thus fouling of RO system is an unavoidable challenge. Fouling of RO membrane leads to frequent chemical cleanings, system down time and high energy consumption.
    In this report, our newest fouling resistance membrane, DOW FILMTECTM FORTILIFETM CR100 is introduced. Performance of this elements was compared with other fouling resistance elements by side-by-side plot test, and showed high fouling resistant of lower pressure drop and less CIP frequency. This demonstrates that this element would be an essential tool to solve challenges of water
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