R
Riichiro Ohta
Researcher at Toyota
Publications - 16
Citations - 797
Riichiro Ohta is an academic researcher from Toyota. The author has contributed to research in topics: Hildebrand solubility parameter & Carbon nanotube. The author has an hindex of 5, co-authored 15 publications receiving 686 citations.
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Optically tunable amino-functionalized graphene quantum dots
Hiroyuki Tetsuka,Ryoji Asahi,Akihiro Nagoya,Kazuo Okamoto,Ichiro Tajima,Riichiro Ohta,Atsuto Okamoto +6 more
TL;DR: Amino-functionalized graphene quantum dots with discrete molecular weights and specific edges were self-limitedly extracted from oxidized graphene sheet and exhibit bright colorful fluorescence under a single-wavelength excitation.
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Nontoxic organic solvents identified using an a priori approach with Hansen solubility parameters
TL;DR: The nontoxicity of solvents originates from their exhibition of poor solubility or low diffusivity toward cell constituents and good stability against hydrolytic degradation.
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Efficient Catalytic Electrode for CO2 Reduction Realized by Physisorbing Ni(cyclam) Molecules with Hydrophobicity Based on Hansen’s Theory
TL;DR: The high hydrophobicity of BPh4(-)-containing Ni(cyclam) molecules inhibits their dissolution into aqueous electrolyte and retains their immobilization onto the electrode surface, which is believed to result in the improved catalytic activity of the electrode physisorbed with them.
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Anti-agglomerating effect in vertically aligned carbon nanotubes derived by antisolvent precipitation of naphthalene
Riichiro Ohta,Itaru Gunjishima,Kazuma Shinozaki,Tatsuya Hatanaka,Atsuto Okamoto,Koichi Nishikawa +5 more
TL;DR: A novel anti-agglomeration method that enables preservation of the vertical alignment of carbon nanotubes (CNTs) during desiccation of wet CNTs by utilizing antisolvent precipitation and sublimation of naphthalene (Nap).
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Electrodeposition of strontium apatite nanorod arrays and their cell compatibility
TL;DR: In this article, the authors electrodeposited strontium hydroxyapatite (SrHAp) thin films on a Ti substrate and evaluated their cell compatibility for the first time.