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Electrochim Acta 152:19–24
45. Armstrong FA, Hirst J (2011) Reversibility and efficiency in electrocatalytic energy conversion
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46. Kitazumi Y, Kano K, Bioelectrochemical and reversible interconversion in the proton/hydrogen
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47. Shiraiwa S, Kitazumi Y, Shirai O, Kano K, unpublished data
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four-way bioelectrocatalysis of CO2/formate and NAD+/NADH redox couples by tungstencontaining formate dehydrogenase adsorbed on gold nanoparticle-embedded mesoporous
carbon electrodes modified with 4-mercaptopyridine. Electrochem Commun 84:75
49. Sakai K, Sugimoto Y, Kitazumi Y, Shirai O, Takagi K, Kano K (2017) Direct electron transfertype bioelectrocatalytic interconversion of carbon dioxide/formate and NAD(+)/NADH redox
couples with tungsten-containing formate dehydrogenase. Electrochim Acta 228:537–544
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51. Marcus RA, Sutin N (1985) Electron transfers in chemistry and biology. Biochem Biophys
Acta 811:265–322
52. Marcus RA (1993) Electron transfer reactions in chemistry: theory and experiment (nobel
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34. Navaee A, Salimi A, Jafari F (2015) Electrochemical pretreatment of amino-carbon nanotubes
on graphene support as a novel platform for bilirubin oxidase with improved bioelectrocatalytic
activity towards oxygen reduction. Chem Eur J 21:4949–4953
35. Xia H, Kitazumi Y, Shirai O, Ozawa H, Onizuka M, Komukai T, Kano K (2017) Factors affecting
the interaction between carbon nanotubes and redox enzymes in direct electron transfer-type
bioelectrocatalysis. Bioelectrochemistry 118:70–74
36. Léger C, Bertrand P (2008) Direct electrochemistry of redox enzymes as a tool for mechanistic
studies. Chem Rev 108:2379–2438
37. Sensi M, del Barrio M, Baffert C, Fourmond V, Léger C (2017) New perspectives in hydrogenase
direct electrochemistry. Curr Opin Electrochem 5:135–145
38. Ogata H, Mizoguchi Y, Mizuno N, Miki K, Adachi S, Yasuoka N, Yagi T, Yamauchi O, Hirota
S, Higuchi Y (2002) Structural studies of the carbon monoxide complex of [NiFe]hydrogenase
from Desulfovibrio vulgaris Miyazaki F: suggestion for the initial activation site for dihydrogen.
J Am Chem Soc 124:11628–11635
39. Lojou E (2011) Hydrogenases as catalysts for fuel cells: strategies for efficient immobilization
at electrode interfaces. Electrochim Acta 56:10385–10397
40. Lojou É, Luo X, Brugna M, Candoni N, Dementin S, Giudici-Orticoni MT (2008) Biocatalysts
for fuel cells: efficient hydrogenase orientation for H 2 oxidation at electrodes modified with
carbon nanotubes. J Biol Inorg Chem 13:1157–1167
41. Luo X, Brugna M, Tron-Infossi P, Giudici-Orticoni MT, Lojou E (2009) Immobilization of
the hyperthermophilic hydrogenase from Aquifex aeolicus bacterium onto gold and carbon
nanotube electrodes for efficient H 2 oxidation. J Biol Inorg Chem 14:1275–1288
42. Hibino Y, Kawai S, Kitazumi Y, Shirai O, Kano K (2016) Mutation of heme c axial ligands
in d-fructose dehydrogenase for investigation of electron transfer pathways and reduction of
overpotential in direct electron transfer-type bioelectrocatalysis. Electrochem Commun 67:43–
46
43. Hibino Y, Kawai S, Kitazumi Y, Shirai O, Kano K (2017) Construction of a protein-engineered
variant of D-fructose dehydrogenase for direct electron transfer-type bioelectrocatalysis.
Electrochem Commun 77:112–115
44. Kawai S, Yakushi T, Matsushita K, Kitazumi Y, Shirai O, Kano K (2015) Role of a nonionic surfactant in direct electron transfer-type bioelectrocatalysis by fructose dehydrogenase.
Electrochim Acta 152:19–24
45. Armstrong FA, Hirst J (2011) Reversibility and efficiency in electrocatalytic energy conversion
and lessons from enzymes. Proc Natl Acad Sci 108:14049–14054
46. Kitazumi Y, Kano K, Bioelectrochemical and reversible interconversion in the proton/hydrogen
and carbon dioxide/formate redox systems and its significance in future energy systems. In:
Ishii M, Wakai S (eds) Electron-based bioscience and biotechnology), Chap. 7. Spring, Berlin,
in press
47. Shiraiwa S, Kitazumi Y, Shirai O, Kano K, unpublished data
48. Sakai K, Kitazumi Y, Shirai O, Takagi K, Kano K (2017) Direct electron transfer-type
four-way bioelectrocatalysis of CO2/formate and NAD+/NADH redox couples by tungstencontaining formate dehydrogenase adsorbed on gold nanoparticle-embedded mesoporous
carbon electrodes modified with 4-mercaptopyridine. Electrochem Commun 84:75
49. Sakai K, Sugimoto Y, Kitazumi Y, Shirai O, Takagi K, Kano K (2017) Direct electron transfertype bioelectrocatalytic interconversion of carbon dioxide/formate and NAD(+)/NADH redox
couples with tungsten-containing formate dehydrogenase. Electrochim Acta 228:537–544
50. Hori Y, Vayenas CG, White RE, Gamboa-Aldeco ME (2008) Modern aspects of electrochemistry, vol 42. Springer, New York, pp 89–189
51. Marcus RA, Sutin N (1985) Electron transfers in chemistry and biology. Biochem Biophys
Acta 811:265–322
52. Marcus RA (1993) Electron transfer reactions in chemistry: theory and experiment (nobel
lecture). Angew Chem Int Ed 32:1111–1121
53. Marcus RA (1964) Chemical and electrochemical electron-transfer theory. Annu Rev Phys
Chem 15:155–196