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National Institute for Materials Science

4 ARTICLES PUBLISHED IN JoVE

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Chemistry

Synthesis of a Water-soluble Metal–Organic Complex Array
Purnandhu Bose 1, Pradip K. Sukul 1, Omar M. Yaghi 2,3,4, Kentaro Tashiro 1
1International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 2Department of Chemistry, University of California–Berkeley, 3Materials Sciences Division, Lawrence Berkeley National Laboratory, 4Kavli Energy NanoSciences Institute at Berkeley, University of California–Berkeley

A potential general method for the synthesis of water-soluble multimetallic peptidic arrays containing a predetermined sequence of metal centers is presented.

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Biochemistry

Electrochemical Detection of Deuterium Kinetic Isotope Effect on Extracellular Electron Transport in Shewanella oneidensis MR-1
Yoshihide Tokunou 1, Kazuhito Hashimoto 2, Akihiro Okamoto 2
1Department of Applied Chemistry, University of Tokyo, 2Global Research Center for Environment and Energy based on Nanomaterials Science, National Institute for Materials Science

Here we present a protocol of whole-cell electrochemical experiments to study the contribution of proton transport to the rate of extracellular electron transport via the outer-membrane cytochromes complex in Shewanella oneidensis MR-1.

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Environment

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site
Akihiro Okamoto 1, Annette Rowe 2, Xiao Deng 3, Kenneth H. Nealson 2
1International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 2Department of Earth Sciences, University of Southern California, 3Department of Applied Chemistry, The University of Tokyo

On-site microbial enrichment or in situ cultivation techniques can facilitate the isolation of difficult-to-culture microbial taxa, especially from low-biomass or geochemically extreme environments. Here, we describe an electrochemical set-up without using an external power source to enrich microbial strains that are capable of extracellular electron transport (EET).

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Chemistry

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Akira Yamaguchi 1,5, Toshihiro Takashima 2, Kazuhito Hashimoto 1,6, Ryuhei Nakamura 3,4
1Department of Applied Chemistry, The University of Tokyo, 2Clean Energy Research Center, University of Yamanashi, 3Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science, 4Earth-Life Science Institute (ELSI), Tokyo Institute of Technology, 5Department of Materials Science and Engineering, Tokyo Institute of Technology, 6National Institute for Materials Science

Here, we present a protocol to prepare charge transfer chromophores based on a polyoxometalate/polymer composite membrane.

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