Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
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77 巻 , 4 号
選択された号の論文の11件中1~11を表示しています
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  • Eiji MAEKAWA, Nao KITANO, Tomoyuki YASUKAWA, Fumio MIZUTANI
    77 巻 (2009) 4 号 p. 319-321
    公開日: 2012/03/22
    ジャーナル フリー
    A glucose-sensing electrode based on the cathodic detection of oxygen, which was consumed with the glucose oxidase-catalyzed reaction in the presence of glucose, was prepared by immobilizing the enzyme on a surface-modified poly(dimethylsiloxane) (PDMS) layer. A PDMS layer was prepared on a platinum electrode by casting an emulsion of the polymer, the polymer surface was treated with oxygen plasma to replace silane groups with silanol groups, and then a GOx layer was prepared on the PDMS layer by applying silanization and cross-linking chemistries. The oxygen plasma-treatment of PDMS did not cause significant changes in the permselectivity with the polymer layer so as to discriminate hydrophilic solutes, such as hydrogen peroxide, from oxygen. Thus, the resulting electrode could be used for the measurement for glucose (0.02–1.8 mM) without the error caused by L-ascorbic acid and uric acid.
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  • Shen YE, Toshihiro KONDO, Nagahiro HOSHI, Junji INUKAI, Soichiro YOSHI ...
    77 巻 (2009) 4 号 p. E1
    公開日: 2012/03/22
    ジャーナル 認証あり
    Until the mid 1980’s, there had been only few in situ methods available for structural determination of an electrode surface in solution at atomic and monolayer levels. Nowadays, many powerful in situ techniques, such as electrochemical scanning tunneling microscopy (EC-STM), infrared reflection absorption spectroscopy (IRAS), surface-enhanced Raman scattering (SERS), and surface-enhanced infrared reflection absorption spectroscopy (SEIRAS), second harmonic generation (SHG), sum frequency generation (SFG), and surface X-ray scattering (SXS) have been widely employed to characterize the electrode surfaces under potential control with atomic and/or molecular resolution. The object of this review is to highlight some of the progress on in situ methods at solid-liquid interface with atomic and molecular levels. Several selected topics are focused on, specifically adsorbed anions on metal surface, electrocatalysis of the carbon oxide oxidation and xygen reduction, and direct observation of single crystal electrode surfaces.
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使える解析テクニック具体例で説明する電気化学測定法
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