Okamoto AKihiro

Profile Information

Affiliation: National Institute for Materials Science
: Graduate School of Chemical Sciences and Engineering, Hokkaido University

Degree: 博士（工学）(東京大学大学院工学系研究科)

ORCID iD: https://orcid.org/0000-0002-8102-4316
J-GLOBAL ID: 201801003199448720
researchmap Member ID: B000329915

External link: http://www.nims.go.jp/nanointerface/iecmc_nims/index.html

Group Leader, Electrochemical Nanobiotechnology Group
International Center for Materials Nanoarchitectonics (MANA)
National institute for Materials Science,
1-1 Namiki, Tsukuba, Ibaraki, 305-0044
tel 029-860-4430
okamoto.akihiro@nims.go.jp

Visiting Professor, Hokkaido University, Graduate School of Chemical Sciences and Engineering

Research Areas

Nanotechnology/Materials / Nanobioscience /

Papers

Decoding In-Cell Respiratory Enzyme Dynamics by Label-Free In-situ Electrochemistry

Yoshihide Tokunou, Tomohiko Yamazaki, Akihiro Okamoto

May 2, 2024
Colony-Based Electrochemistry Reveals Electron Conduction Mechanisms Mediated by Cytochromes and Flavins in Shewanella oneidensis.

Yoshihide Tokunou, Hiromasa Tongu, Yugo Kogure, Akihiro Okamoto, Masanori Toyofuku, Nobuhiko Nomura

Environmental science & technology, 58(10) 4670-4679, Mar 12, 2024
Osmium-grafted magnetic nanobeads improve microbial current generation via culture-free and quick enrichment of electrogenic bacteria

Chia-Lun Ho, Mohammed Y. Emran, Souta Ihara, Wenyuan Huang, Satoshi Wakai, Wei-Peng Li, Akihiro Okamoto

Chemical Engineering Journal, 466 142936-142936, Jun, 2023
Mechano-control of Extracellular Electron Transport Rate via Modification of Inter-heme Coupling in Bacterial Surface Cytochrome

Xizi Long, Yoshihide Tokunou, Akihiro Okamoto

Environmental Science & Technology, 57(19) 7421-7430, Apr 20, 2023
Optimizing LiMn_1.5M_0.5O₄ cathode materials for aqueous photo-rechargeable batteries

Kohei Shimokawa, Shogo Matsubara, Tomoya Kawaguchi, Akihiro Okamoto, Tetsu Ichitsubo

Chemical Communications, 2023
Electrochemical Enrichment and Isolation of Electrogenic Bacteria from 0.22 µm Filtrate

Sota Ihara, Satoshi Wakai, Tomoko Maehara, Akihiro Okamoto

Microorganisms, 10(10) 2051-2051, Oct 18, 2022
Electrode hydrophilicity enhanced the rate of extracellular electron uptake in Desulfovibrio ferrophilus IS5

Xiao Deng, Dan Luo, Akihiro Okamoto

Electrochimica Acta, 421 140504-140504, Jul, 2022
Defined and unknown roles of conductive nanoparticles for the enhancement of microbial current generation: A review

Xiao Deng, Dan Luo, Akihiro Okamoto

Bioresource Technology, 350 126844-126844, Apr, 2022
Biogenic Mn2O3 via the redox of Shewanella oneidensis MR-1 for peroxymonosulfate advanced oxidation

Xizi Long, Hongrui Zhang, Xian Cao, Hui Wang, Kohei Shimokawa, Huimei Chi, Chengming Zhang, Akihiro Okamoto, Xianning Li

Separation and Purification Technology, 303 122144, 2022 Peer-reviewed
Light-induced Li extraction from LiMn₂O₄/TiO₂ in a water-in-salt electrolyte for photo-rechargeable batteries

Kohei Shimokawa, Shogo Matsubara, Akihiro Okamoto, Tetsu Ichitsubo

Chemical Communications, 58(69) 9634-9637, 2022
Extracellular electron transfer by Microcystis aeruginosa is solely driven by high pH

Rita Vieira Lemos, Seiya Tsujimura, Pablo Ledezma, Yoshihide Tokunou, Akihiro Okamoto, Stefano Freguia

Bioelectrochemistry, 137 107637-107637, Feb, 2021
Outer membrane compositions enhance the rate of extracellular electron transport via cell-surface MtrC protein in Shewanella oneidensis MR-1

Xizi Long, Akihiro Okamoto

Bioresource Technology, 320 124290-124290, Jan, 2021
Synechococcus and Other Bloom‐Forming Cyanobacteria Exhibit Unique Redox Signatures

Yoshihide Tokunou, Rita Vieira Lemos, Seiya Tsujimura, Akihiro Okamoto, Pablo Ledezma, Stefano Freguia

ChemElectroChem, Nov 24, 2020
Single-Cell Mass Spectroscopic Analysis for Quantifying Active Metabolic Pathway Heterogeneity in a Bacterial Population on an Electrode

Junki Saito, Xiao Deng, Akihiro Okamoto

Analytical Chemistry, Nov 18, 2020
Enhancement of cell growth by uncoupling extracellular electron uptake and oxidative stress production in sediment sulfate-reducing bacteria

Xiao Deng, Junki Saito, Anna Kaksonen, Akihiro Okamoto

Environment International, 144 106006-106006, Nov, 2020
Mechanism of Anaerobic Microbial Corrosion Suppression by Mild Negative Cathodic Polarization on Carbon Steel

Marina Shiibashi, Xiao Deng, Waheed Miran, Akihiro Okamoto

Environmental Science & Technology Letters, Sep 8, 2020
Microbial current production from Streptococcus mutans correlates with biofilm metabolic activity

Divya Naradasu, Alexis Guionet, Waheed Miran, Akihiro Okamoto

Biosensors and Bioelectronics, 162 112236-112236, Aug, 2020
Metabolic Current Production by an Oral Biofilm Pathogen Corynebacterium matruchotii

Divya Naradasu, Waheed Miran, Akihiro Okamoto

Molecules, 25(14) 3141-3141, Jul 9, 2020
Microbially influenced corrosion—Any progress?

B.J. Little, D.J. Blackwood, J. Hinks, F.M. Lauro, E. Marsili, A. Okamoto, S.A. Rice, S.A. Wade, H.-C. Flemming

Corrosion Science, 170 108641-108641, Jul, 2020
Improvement of Electrochemical Conditions for Detecting Redox Reaction of K₃[Fe(CN)₆] toward the Application in Norovirus Aptasensor

Seiya HIRANO, Junki SAITO, Tomoki YUKAWA, Daisuke SANO, Akihiro OKAMOTO, Satoshi OKABE, Masaaki KITAJIMA

Electrochemistry, 88(3) 205-209, May 5, 2020

Misc.

Development of genetic and electrochemical diagnosis and inhibition technologies for invisible corrosion caused by microorganisms (Contract Research); FY2021 Nuclear Energy Science & Technology and Human Resource Development Project

Jan, 2023 Peer-reviewed
Extracellular electron transfer mechanism affected by bacteriophages infecting an iron-reducing bacterium, Shewanella oneidensis

石原令梧, 岡本章玄, 岡部聡, 北島正章

日本水環境学会年会講演集, 54th, 2020
電気細菌学者は電気羊の夢を見るか？

岡本章玄

日本微生物生態学会誌, 14-16, 2020
ブラック電気細菌たちが来た

岡本章玄

SEIBUTSU-KOGAKU KAISHI, 549-549, 2020
ブラック電気細菌はなぜ・どうやって電子を流すのか？電子移動を自在に操る鉄腐食細菌、病原細菌

岡本章玄

Chemistry, 66-67, 2020
金属腐食抑制への応用に向けた鉄還元細菌Shewanellaの溶菌性バクテリオファージの単離と特性解析

石原令梧, 岡本章玄, 高木達馬, 岡部聡, 北島正章

日本水環境学会年会講演集, 52nd, 2018
微生物燃料電池によるエネルギーと物質生産の同時実現へ向けて

岡本章玄

月刊バイオインダストリー, (7) 75-83, 2018

Books and Other Publications

Extracellular Electron Uptake Mechanisms in Sulfate-Reducing Bacteria

岡本章玄, Xiao Deng

2020 (ISBN: 9789811547621)
ELECTROCHEMICAL TECHNIQUES AND APPLICATION TO CHARACTERIZE SINGLE- AND MULTICELLULAR ELECTRIC MICROBIAL FUNCTIONS

ムルガンムラリダハラン, グイヨネアレクシ, 齋藤淳貴, ミランワヒード, 鄧驍, 岡本章玄

2019
Electrochemical Techniques and Applications to Characterize Single- and Multicellular Electric Microbial Functions

齋藤淳貴, ムルガンムラリダハラン, 鄧驍, グイヨネアレクシ, ミランワヒード, 岡本章玄

2019 (ISBN: 9781119611103)

Presentations

Extracellular Electron Transport Mechanisms by Sulfate-reducing Bacteria

岡本章玄

2020KSBB Fall Meeting and International Symposium: Hybrid Conference, Oct 21, 2020
「健全性崩壊をもたらす微生物による視認不可腐食の分子生物・電気化学的診断及び抑制技術の開発」

岡本章玄

2020年10月20日第1回腐食分科会, Oct 20, 2020
Interplay of low electron export and redox-repressor rex in modulation of pathogen’s metabolism – a new form for antibiotic assessment

岡本章玄, ナラダスディビア

1st virutual meeting ISMET 2020, Oct 7, 2020
Open up extracellular nanoparticles! -Their diversity and biodynamics-

岡本章玄

第58回日本生物物理学会年会, Sep 16, 2020
電気細菌による嫌気鉄腐食反応機構と応用へ向けた課題

岡本章玄

NIMSインフラ構造材料パートナーシップ 2020年度第1回研究会, Aug 4, 2020
Electrochemical catalytic function of membrane vesicle from bacteria

岡本章玄

第93回日本細菌学会総会, Feb 19, 2020
Genomic Characterization of an Uncultivated Actinobacterial Acetogen from a Serpentine-Hosted Environment, Hakuba Happo Hot Springs

Nancy Merino, 岡本章玄

The Gordon Research Seminar on Geobiology, Jan 11, 2020
FeGenie: a bioinformatics tool and database to identify microbial iron-related genes and gene operons in genomes and metagenome assemblies

Nancy Merino, 岡本章玄

The Gordon Research Seminar on Merging and Emerging Disciplines in Geobiology, Jan 11, 2020
Effects of electric current on deep-sea hydrothermal vent Epsilonproteobacteria.

岡本章玄, 武藤久

マクロ生物学百花繚乱, Nov 11, 2019
Ubiquitous Transmembrane Electric Conduit in Microbial World

岡本章玄

MANA- i-MATE Joint Symposium, Nov 4, 2019
Low Extracellular Electron Transport Facilitate Fermentative Metabolism in oral Pathogen: Possibility of Electrical Symbiosis in Oral plaque

岡本章玄, ナラダスディビア

ISMET7 International Society for Microbial Electrochemistry and Technology Global Conference, Oct 7, 2019
Circular Dichroism spectroscopy for Engineered E.coli surface cytochrome detection

岡本章玄, ロンシズ

ISMET7 International Society for Microbial Electrochemistry and Technology Global Conference, Oct 7, 2019
Extracellular Electron Transport by Human Gut Bacteria: Electrochemical Techniques for Isolation and Characterization

岡本章玄, ミランワヒード

ISMET7 International Society for Microbial Electrochemistry and Technology Global Conference, Oct 7, 2019
Synergetic current generation across conductive bacterial networks in biomineralized coculture

岡本章玄, ムルガンムラリダハラン

ISMET7 International Society for Microbial Electrochemistry and Technology Global Conference, Oct 7, 2019
Extracellular electron transport mechanism for microbial electrode catalysis

岡本章玄

The 8th Asian Conference on Colloid & Interface Science, Sep 24, 2019
口腔内細菌叢における細胞外電子移動に関する研究

岡本章玄

第92回日本生化学会大会, Sep 18, 2019
Good and bad living electrode catalysts: Interfacial electron transfer mechanisms between bacteria and electrodes

岡本章玄

5th International Water Industry Conference 2019, Sep 3, 2019
In-Situ Biosynthetically Produced Iron Sulfide Nanocluster by Sulfate reducing bacteria Enhanced Anodic Current Generation in Microbial Fuel Cells

岡本章玄, ムルガンムラリダハラン, 増田卓也, Dae Sung Lee, ミランワヒード

5th International Water Industry Conference 2019, Sep 3, 2019
In-Situ Biosynthetically Produced Iron Sulfide Nanocluster by Sulfate reducing bacteria Enhanced Anodic Current Generation in Microbial Fuel Cells

ムルガンムラリダハラン, ミランワヒード, 岡本章玄, 増田卓也, Dae Sung Lee

5th International Water Industry Conference 2019, Sep 3, 2019
発電細菌・固体界面における膜タンパクを介した電子とイオン移動研究の最前線

岡本章玄

第15回固体イオニクスセミナー, Sep 1, 2019

Research Projects

微生物鉄腐食を加速する可溶性レドックス分子のデータ駆動型研究

科学研究費助成事業, 基盤研究(B), 日本学術振興会, Apr, 2022 - Mar, 2025

岡本章玄, 今村岳, Deng Xiao
発電機能を持つ歯周病細菌におけると鉄イオン排出機構に関する研究

科学研究費助成事業, 特別研究員奨励費, 日本学術振興会, Nov, 2021 - Mar, 2024

岡本章玄, NARADASU DIVYA
Electrochemical acceleration of ammonium biosynthesis from nitrogen gas

Grants-in-Aid for Scientific Research, Grant-in-Aid for JSPS Fellows, Japan Society for the Promotion of Science, Nov, 2020 - Mar, 2023
ハイスループット電気化学培養法による電気細菌の同時複数単離法の開発

科学研究費助成事業, 新学術領域研究(研究領域提案型), 日本学術振興会, Apr, 2020 - Mar, 2022

岡本章玄
酸化還元特性を持つ膜小胞によるバイオフィルム活性の制御

科学研究費助成事業, 特別研究員奨励費, 日本学術振興会, Nov, 2019 - Mar, 2022

岡本章玄, MIRAN WAHEED
Control of extracellular Electron Transport to Enhance the Rate of Fermentation-hybrid Respiration

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (A), Japan Society for the Promotion of Science, Apr, 2017 - Mar, 2021

OKAMOTO Akihiro
Periplasmic proton accumulation mechanism in alkaliphilic bacteria capable of extracellular electron transport

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2016

okamoto akihiro
Pioneer the Physical Chemistry of Biological Electron Transfer based on Bacterial Extracellular Electron Transport

Grants-in-Aid for Scientific Research, Grant-in-Aid for Specially Promoted Research, Japan Society for the Promotion of Science, 2012 - 2016

HASHIMOTO Kazuhito, NAKAMURA Ryuhei, NAKANISHI Shuji, ISHIHARA Kazuhiko, TAJIMA Keisuke, OKAMOTO Akihiro, KAMIYA Kazuhide
in-vivo微生物電気化学を使った好アルカリ細菌のプロトン集積機構の研究

科学研究費助成事業, 研究活動スタート支援, 日本学術振興会, Aug, 2013 - Mar, 2015

岡本章玄

Industrial Property Rights

特開2016-182063 培地及び強光阻害抑制方法

岡本章玄, 橋本和仁, 戸島裕希, 中西周次, 上田巌, 青木信雄, 鈴木健吾
特開2016-117027 含窒素化合物含有水の処理装置、および、含窒素化合物含有水の処理方法

中西周次, 岡本章玄, 橋本和仁, 加藤創一郎, 磯和俊男, 石間智生
特開2016-087497 含窒素化合物含有水の処理方法

中西周次, 岡本章玄, 橋本和仁, 加藤創一郎, カラティル, シャフェール, 磯和俊男, 石間智生
特開2015-104687 汚染された土壌または水の浄化方法

橋本和仁, 中村龍平, 岡本章玄, 砂田香矢乃, 磯和俊男
特開2014-177676 微生物腐食防止方法及びカソード防食方法

橋本和仁, 中村龍平, 茂木岳人, 岡本章玄, 河西崇智, 久手幸徳