論文

査読有り
2018年3月1日

Pore size effect of MgO-templated carbon on enzymatic H2 oxidation by the hyperthermophilic hydrogenase from Aquifex aeolicus

Journal of Electroanalytical Chemistry
  • I. Mazurenko
  • ,
  • R. Clément
  • ,
  • D. Byrne-Kodjabachian
  • ,
  • A. de Poulpiquet
  • ,
  • S. Tsujimura
  • ,
  • E. Lojou

812
開始ページ
221
終了ページ
226
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jelechem.2017.12.041
出版者・発行元
Elsevier B.V.

Hydrogenase from the hyperthermophilic bacterium Aquifex aeolicus was immobilized in MgO-templated carbon (MgOC). Two different pore sizes were investigated, large pore size of 150 nm (MgOC150) and smaller pore size of 35 nm (MgOC35). Direct H2 oxidation proceeded in both MgOC150 and MgOC35. Hydrogenase embedded in the carbon material exhibited the expected properties in terms of onset for H2 oxidation and kinetics of formation of the inactive state at high potentials, whatever the size of the pores. Pore size much larger than the size of the enzyme favored the loading of the enzyme, yielding to high catalytic current reported to the capacitance. Pore size closer to the enzyme diameter, as determined by DLS, enhanced the stability of the enzyme at high temperature.

リンク情報
DOI
https://doi.org/10.1016/j.jelechem.2017.12.041
ID情報
  • DOI : 10.1016/j.jelechem.2017.12.041
  • ISSN : 1572-6657
  • SCOPUS ID : 85038883447

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