Papers - Oaki, Yuya

Spatial Control of Crystallographic Direction in 2D Microarrays of Anisotropic Nanoblocks on Trenched Substrates

R. Matsumoto, Y. Nakagawa, K. Kato, Y. Oaki, H. Imai

Langmuir 33 ( 48 ) 13805 - 13810 2017.12

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0743-7463

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Hierarchical Textures on Aragonitic Shells of a Hyaline Radial Foraminifer Hoeglundina elegans

K. Nakajima, M. Suzuki, Y. Nagai, K. Izumida, Y. Oaki, T. Toyofuku, J. Bijma, G. Nehrke, M. Raitzsch, K. Tani, H. Imai

CrystEngComm 19 ( 47 ) 7191 - 7196 2017.11

Research paper (scientific journal), Joint Work, Accepted,  ISSN  1466-8033

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Enhanced quantum yield of fluorophores in confined spaces of supermicroporous silicas

S. Ogawa, T. Wakayama, H. Watanabe, K. Hayashi, S. Ogata, Y. Oaki, M. Hasegawa, H. Imai

The Bulletin of the Chemical Society of Japan (Bulletin of the Chemical Society of Japan)  91 ( 1 ) 87 - 91 2017.10

Research paper (scientific journal), Joint Work, Accepted,  ISSN  00092673

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The optical properties of polycyclic aromatic hydrocarbon fluorophores, such as pyrene and perylene, are controlled by confined spaces of meso- and supermicropores in a silica matrix. The quantum yield of fluorescence from monodispersed pyrene and perylene increases with limitation of the excimer formation in 1 nm supermicropores. When the pore diameter is close to the molecular size, solid-state fluorescence having a high quantum yield is achieved via the fluorophores in the confined spaces by suppressing the aggregation, the interaction with charge-transfer sites and the stabilization of the excited state.

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Polymer-Assisted Shapeable Synthesis of Porous Frameworks Consisting of Silica Nanoparticles with Mechanical Property Tuning

K. Sato, K. Ishii, Y. Oaki, K. Nakanishi, H. Imai

Polymer Journal 49 ( 12 ) 825 - 830 2017.10

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0032-3896

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Ultrasensitive Detection of Methylmercaptan Gas Using Layered Manganese Oxide Nanosheets with a Quartz Crystal Microbalance Sensor

Y. Tokura, G. Nakada, Y. Moriyama, Y. Oaki, H. Imai, S. Shiratori

Analytical Chemistry 89 ( 22 ) 12123 - 12130 2017.10

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0003-2700

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Evolution analysis of V2O5·nH2O gels for preparation of xerogels having a high specific surface area and their replicas

K. Ishii, Y. Kimura, T. Yamazaki, Y. Oaki, H. Imai

RSC Advances 7   35711 - 35716 2017.07

Research paper (scientific journal), Joint Work, Accepted

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Substrate coating by conductive polymers through spontaneous oxidation and polymerization

Kuwabara Kento, Masaki Hirotaka, Imai Hiroaki, Oaki Yuya

NANOSCALE 9 ( 23 ) 7895 - 7900 2017.06

ISSN  2040-3364

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Self-organized Formation of Parallel-banded Structures through Synchronization of Twisted Growth

S. Mizue, S. Ibaraki, R. Ise, G. Sazaki, Y. Oaki, H. Imai

Crystal Growth and Design 17 ( 7 ) 3694 - 3699 2017.05

Research paper (scientific journal), Joint Work, Accepted,  ISSN  1528-7483

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Synthesis of poly(amidoamine) dendrimer having a 1,10-bis(decyloxy)decane core and its use in fabrication of carbon nanotubes/calcium carbonate hybrids through biomimetic mineralization

S. Nishimura, T. Tajima, T. Hasegawa, T. Tanaka, Y. Takaguchi, Y. Oaki, H. Imai

Canadian Journal of Chemistry 2017 ( 9 ) 935 - 941 2017.04

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0008-4042

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Synthesis of dispersible nanosheets based on monolayer clays with imidazolium and ammonium ations aving long-chain alkyl groups

A. Suzuki, Y. Oaki, H. Imai

Journal of the Ceramics Society of Japan 125 ( 4 ) 353 - 356 2017.04

Research paper (scientific journal), Joint Work, Accepted,  ISSN  1882-0743

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Significant increase in bandgap and emission efficiency of In2O3 quantum dots by size-tuning around 1 nm in supermicroporous silicas

T. Suzuki, H. Watanabe, T. Ueno, Y. Oaki, H. Imai

Langmuir 33 ( 12 ) 3014 - 3017 2017.03

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0743-7463

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Oriented Attachment of Calcite Nanocrystals: Formation of Single-Crystalline Configurations as 3D Bundles via Lateral Stacking of 1D Chains

M. Takasaki, Y. Oaki, H. Imai

Langmuir 33 ( 6 ) 1516 - 1520 2017.02

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0743-7463

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Effects of Nanostructured Biosilica in Rice Plant Mechanics, RSC Advances

K. Sato, N. Ozaki, K. Nakanishi, Y. Sugahara, Y. Oaki, C. Salinas, S. Herrera, D. Kisailus, H. Imai

RSC Advances 7 ( 22 ) 13065 - 13071 2017.02

Research paper (scientific journal), Joint Work, Accepted

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Stepwise Rotation of Nanometric Building Blocks in Aragonite Helix of a Pteropod Shell

M. Suzuki, T. Sasaki, Y. Oaki, H. Imai

Crystal Growth and Design 17 ( 1 ) 191 - 196 2017.01

Research paper (scientific journal), Joint Work, Accepted,  ISSN  1528-7483

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Multistep Crystal Growth of Oriented Fluorapatite Nanorod Arrays for Fabrication of Enamel-Like Architectures on a Polymer Sheet

K. Nakamura, Y. Oaki, H. Imai

CrystEngComm 19 ( 4 ) 669 - 674 2017.01

Research paper (scientific journal), Joint Work, Accepted,  ISSN  1466-8033

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Crystal-Induced Nanoarchitectonics of Organic Polymer Materials

Oaki Y.

SUPRA-MATERIALS NANOARCHITECTONICS    221 - 246 2017

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Bio-inspired synthesis of xLi₂MnO₃-(1-x) LiNi_0.33Co_0.33Mn_0.33O₂ lithium-rich layered cathode materials

Hou, CX; Oaki, Y; Hosono, E; Lin, H; Imai, H; Fan, YQ; Dang, F

MATERIALS & DESIGN 109   718 - 725 2016.11

ISSN  0264-1275

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Orientation-Selective Alignments of Hydroxyapatite Nanoblocks through Epitaxial Attachment in <i>a</i> and <i>c</i> Directions

Nakamura, K; Nakagawa, Y; Kageyama, H; Oaki, Y; Imai, H

LANGMUIR 32 ( 16 ) 4066 - 4070 2016.04

ISSN  0743-7463

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UV-induced Epitaxial Attachment of TiO2 Nanocrystals in Molecularly Mediated 1D and 2D Alignments

T. Hiraide, H. Kageyama, Y. Nakagawa, Y. Oaki, H. Imai

Chemical Communications 52   7545 - 7548 2016

Research paper (scientific journal), Joint Work, Accepted

Selectively Assembled 2D Microarrays from Binary Nanocrystals

C. Hou, T. Liua, Y. Fan, H. Imai, R. Fan, H. Lin, Q. He, N. Wang, F. Dang, Z. Guo

CrystEngComm 18   3008 - 3014 2016

Research paper (scientific journal), Joint Work, Accepted