Publications

Molecular Assembly in Optical Cavities

K. Hirai, H. Uji-i

Chem. Asian J., in press.

Mechanical properties of modulative undulating layers in two-dimensional metal–organic frameworks

Y. Iwai, S. Kusumoto, R. Suzuki, M. Tachibana, K. Komatsu, T. Kikuchi, S. I. Kawaguchi, H. Kadobayashi, Y. Masubuchi, Y. Yamamoto, Y. Ozawa, M. Abe, K. Hirai, B. Le Ouay, M. Ohba, R. Ohtani

Chem. Mater., 2024, 36, 5446–5455.

Spatially Heterogeneous Dynamics of Droplets Formed by Arginine-Rich Dipeptides and Poly-A RNA during Liquid-Liquid Phase Separation

Y. Tian, Q. Zhang, K. Hirai, H. Wen, G. Feng, J. Li, F. Taemaitree, T. Inose, K. Kanekura, H. Uji-i

Mol. Cryst. Liq. Cryst., 2024, 768 (11), 403–409.

Optical Cavity Design and Functionality for Molecular Strong Coupling

K. Hirai, J. A. Hutchison, H. Uji-i

Chem. Eur. J., 2024, 30, e202303110.

Visualizing Ribbon-to-Ribbon Heterogeneity of Chemically Unzipped Graphene Nanoribbons by Silver Nanowire-Based Tip-Enhanced Raman Scattering Microscopy

T. Inose, S. Toyouchi, S. Hara, S. Sugioka, P. Walke, R. Oyabu, B. Fortuni, W. Peeters, Y. Usami, K. Hirai, S. De Feyter, Y. Fujita, H. Uji-i, H. Tanaka

Small, 2024, 20, 2301841. (Frontispiece)

A Light-mediated Covalently Patterned Graphene Substrate for Graphene-Enhanced Raman Scattering

G. Feng, N. Suzuki, Q. Zhang, J. Li, T. Inose, F. Taemaitree, K. M. M. Shameem, S. Toyouchi, Y. Fujita, K. Hirai, H. Uji-i

Chem. Commun., 2023, 59, 11417–11420.

Site-specific Synthesis of Conductive Graphitic Nanomaterials on a NiFe Thin Film by Localized Laser Irradiation

H. Fujiwara, S. Daikokuya, T. Mirokuin, K. Hayashi, M. Matsuzaka, Y. Ohashi, C. Pin, H. Kaiju, K. Hirai, H. Uji-i

ACS Appl. Nano Mater., 2023, 6, 13885–13893.

Molecular Chemistry in Cavity Strong Coupling

K. Hirai, J. A. Hutchison, H. Uji-i

Chem. Rev., 2023, 123, 8099–8126.

SERS Endoscopy for Monitoring Intracellular Drug Dynamics

B. Fortuni, M. Ricci, R. Vitale, T. Inose, Q. Zhang, J. A. Hutchison, K. Hirai, Y. Fujita, S. Toyouchi, S. Krzyzowska, I. van Zundert, S. Rocha, H. Uji-i

ACS Sensors, 2023, 8, 2340–2347.

Selective Detection of Intracellular Drug Metabolism by Metal-Organic Framework-Coated Plasmonic Nanowire

Q. Zhang, T. Murasugi, K. Watanabe, H. Wen, Y. Tian, M. Ricci, S. Rocha, T. Inose, H. Kasai, F. Taemaitree, H. Uji-i, K. Hirai, B. Fortuni

Adv. Opt. Mater. 2023, 11, 2300856.

Liquid-Phase Photo-induced Covalent Modification (PICM) of Single-Layer Graphene by Short-Chain Fatty Acids

G. Feng, T. Inose, N. Suzuki, H. Wen, F. Taemaitree, M. Wolf, S. Toyouchi, Y. Fujita, K. Hirai, H. Uji-i

Nanoscale 2023, 15, 4932–4939.

Length Controllable Gold-coated Silver Nanowire Probes for High AFM-TERS Activity

H. Wen, J. Li, Q. Zhang, T. Inose, W. Peeters, B. Fortuni, H. Asakawa, A. Masuhara, K. Hirai, S. Toyouchi, Y. Fujita, H. Uji-i

Nano Lett. 2023, 23, 1615–1621. (Supplementary Cover) 

Host and guest joining forces: a holistic approach for metal-organic frameworks in nonlinear optics

M. Wolf, K. Hirai, S. Toyouchi, B. Daelemans, E. Fron, H. Uji-i

J. Mater. Chem. C 2022, 10, 9471–9477. (Front Cover)

Autotuning of Vibrational Strong Coupling for Site-Selective Reactions

K. Hirai, H. Ishikawa, Y. Takahashi, J. A. Hutchison. H. Uji-i

Chem. Eur. J. 2022, 28, e202201260.

All-Optical and One-Color Rewritable Chemical Patterning on Pristine Graphene under Water  

S. Toyouchi, M. Wolf, G. Feng, Y. Fujita, B. Fortuni, T. Inose, K. Hirai, S. De Feyter, H. Uji-i

J. Phys. Chem. Lett. 2022, 13, 3796–3803.

Gold-Coated Silver Nanowires for Long Lifetime AFM-TERS Probes  

H. Wen, T. Inose, K. Hirai, T. Akashi, S. Sugioka, J. Li, W. Peeters, E. Fron, B. Fortuni, Y. Nakata, S. Rocha,  S. Toyouchi, Y. Fujita, H. Uji-i

Nanoscale 2022, 14, 5439–5446.

Li@C60 thin films: characterization and nonlinear optical properties  

M. Wolf, S. Toyouchi, P. Walke, K. Umemoto, A. Masuhara, H. Fukumura, Y. Takano, M. Yamada, K. Hirai, E. Fron, H. Uji-i

RSC Adv. 2022, 12, 389–394.

Gold-Photodeposited Silver Nanowire Endoscopy for Cytosolic and Nuclear pH Sensing 

Q. Zhang, T. Inose, M. Ricci, J. Li, Y. Tian, H. Wen, S. Toyouchi, E. Fron, A. Dao, H. Kasai, S. Rocha, K. Hirai, B. Fortuni, H. Uji-i

ACS Appl. Nano Mater. 2021, 4, 9886–9894.

Controlling polymorphism of metal-organic frameworks

K. Hirai, A. Nagahashi, T. Kitagawa, H. Uji-i

SPIE Proceedings, 2021, 11795–32.

Data Science Assisted Investigation of Catalytically Active Copper Hydrate in Zeolites for Direct Oxidation of Methane to Methanol Using H2O2

J. Ohyama, A. Hirayama, N. Kondou, H. Yoshida, M. Machida, S. Nishimura, K. Hirai, I. Miyazato, K. Takahashi 

Sci. Rep. 2021, 11, 2067.

Polariton Chemistry in Cavity Vacuum Fields

K. Hirai, H. Uji-i 

Chem. Lett. 2021, 50, 727–732. (Highlight Review)

Adaptive Optical Two-photon Microscopy for Surface Profiled Living Biological Specimens

K. Yamaguchi, K. Otomo, Y. Kozawa, M. Tsutsumi, T. Inose, K. Hirai, S. Sato, T. Nemoto, H. Uji-i 

ACS Omega 2021, 6, 438–447. (Supplementary Cover)

Label-free visualization of heterogeneities and defects in metal-organic frameworks using nonlinear optics 

M. Wolf, K. Hirai, S. Toyouchi, E. Fron, W. Peeters, S. De Feyter, H. Uji-i 

Chem. Commun. 2020, 56, 13331–13334. (Inside Back Cover)

Recent Progress in Vibropolaritonic Chemistry  

K. Hirai, J. A. Hutchison, H. Uji-i

ChemPlusChem 2020, 85, 1981–1988. (Very Important Paper)

Multicolour photochromic fluorescence of a fluorophore encapsulated in a metal–organic framework 

K. Hirai, T. Kitagawa, H. Fujiwara, J. Pirillo, Y. Hijikata, T. Inose, H. Uji-i

Chem. Commun. 2020, 56, 9651–9654.

Low-Cytotoxic Gold-Coated Silver Nanoflowers for Intracellular pH Sensing 

Q. Zhang, H. Wen, K. Watanabe, I. Kotani, M. Ricci, B. Fortuni, A. Dao, A. Masuhara, K. Hirai, H. Kasai, T. Inose, H. Uji-i

ACS Appl. Nano Mater. 2020, 3, 7643–7650.

Pseudo-membrane jackets: Two-dimensional coordination polymers achieving visible phase separation in cell membrane

R. Ohtani, K. Kawano, M. Kinoshita, S. Yanaka, H. Watanabe, K. Hirai, S. Futaki, N. Matsumori, H. Uji-i, M. Ohba, K. Kato, S. Hayami

Angew. Chem. Int. Ed. 2020, 59, 17931–17937. (Hot Paper)　物質・デバイス領域共同研究拠点

Controlled Fabrication of Optical Signal Input/Output Sites on Plasmonic Nanowires

S. Toyouchi, M. Wolf, Y. Nakao, Y. Fujita, T. Inose, B. Fortuni, K. Hirai, J. Hofkens, S. De Feyter, J. A. Hutchison, H. Uji-i

Nano Lett. 2020, 20, 2460–2467.

Modulation of Prins Cyclization by Vibrational Strong Coupling 

K. Hirai, R. Takeda, J. A. Hutchison, H. Uji-i

Angew. Chem. Int. Ed. 2020, 59, 5332–5335. (Very Important Paper)　日本経済新聞等４誌に掲載

Water-Mediated Polyol Synthesis of Pencil-like Silver Nanowires Suitable for Nonlinear Plasmonics

T. Inose, S. Toyouchi, L. Gang, K. Umemoto, Y. Tezuka, B. Lyu, A. Masuhara, E. Fron, Y. Fujita, K. Hirai, H. Uji-i 

Chem. Commun. 2019, 55, 11630–11633. 

The Rise of Catalyst Informatics: Towards Catalyst Genomics

K. Takahashi, L. Takahashi, I. Miyazato, J. Fujima, Y. Tanaka, T. Uno, H. Satoh, K. Ohno, M. Nishida, K. Hirai, J. Ohyama, T. N. Nguyen, S. Nishimura

ChemCatChem 2019, 11, 1146–1152. 

Pyrolysis of Helical Coordination Polymers for Metal-Sulfide-Based Helices with Broadband Chiroptical Activity

K. Hirai, B. Yeom, K. Sada 

ACS Nano 2017, 11, 5309–5317. 

Infrared Laser Writing of MOFs

K. Hirai, K. Sada

Chem. Commun. 2017, 53, 5275–5278. (Inside Back Cover)

Solid-Solution Coordination Polymers as Precursors for ZnxCd1-xS/C Composite Nanowires 

S. Tajima, Y. Kuroshima, T. Katayama, N. Tamai, K. Sada, K. Hirai

Eur. J. Inorg. Chem. 2017, 11, 1469–1476. (Very Important Paper)

Nanoparticle Assemblies into Luminescent Dendrites in Shrinking Microdroplets

T. Kojima, K. Hirai, Y. Zhou, P. Weerappuli, S. Takayama, N. A. Kotov

Langmuir 2016, 32, 12468–12475 . 

Gas-generated thermal oxidation of a coordination cluster for an anion-doped mesoporous metal oxide

K.Hirai, S. Isobe, K. Sada

Sci. Rep. 2015, 5, 18468 . 

Coordination Assembly of Discoid Nanoparticles

K. Hirai, B. Yeom, S. H. Chang, H. Chi, J. F. Mansfield, B. Lee, S. Lee, C. Uher, N. A. Kotov

Angew. Chem. Int. Ed. 2015, 54, 8966–8970. (Inside Cover) 

Diffusion-Coupled Molecular Assembly: Structuring of Coordination Polymers across Multiple Length Scales

K. Hirai, J. Reboul, N. Morone, J. F. Heuser, S. Furukawa, S. Kitagawa

J. Am. Chem. Soc. 2014, 136, 14966–14973. 

Confined synthesis of CdSe quantum dots in the pores of metal-organic frameworks

T. Wakaoka, K. Hirai, K. Murayama, Y. Takano, H. Takagi, S. Furukawa, S. Kitagawa

J. Mater. Chem. C 2014, 2, 7173–7175. 

Trapping of a Spatial Transient State During the Framework Transformation of a Porous Coordination Polymer

M. Kondo, S. Furukawa, K. Hirai, N. Louvain, T. Tsuruoka, J. Reboul, H. Uehara, S. Diring, O. Sakata, S. Kitagawa 

J. Am. Chem. Soc. 2014, 136, 4032–4038 . 

Impact of crystal orientation on the adsorption kinetics of a porous coordination polymer/quartz crystal microbalance hybrid sensor 

K. Hirai, K. Sumida, M. Meilikhov, N. Louvain, M. Nakahama, H. Uehara, S. Kitagawa, S. Furukawa 

J. Mater. Chem. C 2014, 2, 3336–3344 . 

Host-Guest Metal-Organic Frameworks for Photonics

K. Hirai, P. Falcaro, S. Kitagawa, S. Furukawa 

Struct. Bond. 2014, 157, 167–186 . 

Programmed crystallization via epitaxial growth and ligand replacement towards hybridized porous coordination polymers 

K. Hirai, K. Chen, T. Fukushima, S. Horike, M. Kondo, M. Meilikhov, N. Louvain, C. Kim, Y. Sakata, O. Sakata, S. Kitagawa, S. Furukawa 

Dalton Trans. 2013, 42, 15868–15872. 

Shape Memory Nanopores Induced in Coordination Frameworks by Crystal Downsizing

Y. Sakata, S. Furukawa, M. Kondo, K. Hirai, N. Horike, Y. Takashima, H. Uehara, N. Louvain, M. Meilikhov, T. Tsuruoka, S. Isoda, W. Kosaka, O. Sakata, S. Kitagawa

Science 2013, 339, 193–196. 

Binary Janus Porous Coordination Polymer Coating for Sensor Devices with Tunable Analyte Affinity

M. Meilikhov, S. Furukawa, K. Hirai, R. A. Fischer, S. Kitagawa

Angew. Chem. Int. Ed. 2013, 52, 341–345. 

Mesoscopic architectures of porous coordination polymers fabricated by pseudomorphic replication

J. Reboul, S. Furukawa, N. Horike, M. Tsotsalas, K. Hirai, H. Uehara, M. Kondo, N. Louvain, O. Sakata, S. Kitagawa

Nature Mater. 2012, 11, 717–723. (Front Cover) 

Targeted functionalization of a hierarchically-structured porous coordination polymer crystal enhances its entire function

K. Hirai, S. Furukawa, M. Kondo, M. Meilikhov, Y. Sakata, O. Sakata, S. Kitagawa 

Chem. Commun. 2012, 48, 6472–6474. (Front Cover)

Redox reaction in tow-dimensional porous coordination polymers based on ferrocenedicarboxylate

K. Hirai, H. Uehara, S. Kitagawa, S. Furukawa

Dalton Trans. 2012, 41, 3924–3927. 

Porous Coordination Polymer Hybrid Device with Quartz Oscillator: Effect of Crystal Size on Sorption Kinetics

H. Uehara, S. Diring, S. Furukawa, Z. Kalay, M. Tsotsalas, M. Nakahama, K. Hirai, M. Kondo, O. Sakata, S. Kitagawa

J. Am. Chem. Soc. 2011, 133, 11932–11935. 

Liquid Phase Separation of Polyaromatics on [Cu2(BDC)2(dabco)]

M. Maes, S. Schouteden, K. Hirai, S. Furukawa, S. Kitagawa, D. E. De Vos

Langmuir 2011, 27, 9083–9087. 

Sequential Functionalization of Porous Coordination Polymer Crystals

K. Hirai, S. Furukawa, M. Kondo, H. Uehara, O. Sakata, S. Kitagawa

Angew. Chem. Int. Ed. 2011, 50, 8057–8061. 

MOF-on-MOF Heteroepitaxy: Perfectly oriented [Zn2(ndc)2(dabco)]n grown on [Cu2(ndc)2(dabco)]n thin films

O. Shekhah, K. Hirai, H. Wang, H. Uehara, M. Kondo, S. Diring, D. Zacher, R. A. Fischer, O. Sakata, S. Kitagawa, S. Furukawa, C. Wöll

Dalton Trans. 2011, 40,4954–4958. 

Fabrication of Coordinatively Immobilized Monolayers on Porous Coordination Polymer Crystals

M. Kondo, S. Furukawa, K. Hirai, S. Kitagawa

Angew. Chem. Int. Ed. 2010, 49, 5327–5330. 

A block PCP crystal: anisotropic hybridization of porous coordination polymers by face-selective epitaxial growth

S. Furukawa, K. Hirai, Y. Takashima, K. Nakagawa, M. Kondo, T. Tsuruoka, O. Sakata, S. Kitagawa

Chem. Commun. 2009, 5097–5099. 

Heterogeneously Hybridized Porous Coordination Polymer Crystals: Fabrication of Heterometallic Core Shell Single Crystals with an In-Plane Rotational Epitaxial Relationship

S. Furukawa, K. Hirai, K. Nakagawa, Y. Takashima, R. Matsuda, T. Tsuruoka, M. Kondo, R. Haruki, D. Tanaka, H. Sakamoto, S. Shimomura, O. Sakata, S. Kitagawa

Angew. Chem. Int. Ed. 2009, 48, 1766–1770. (Hot Paper & Front Cover) 

Reactions and Assembly under Vibrational Strong Coupling

K. Hirai, H. Uji-i

Polariton Chemistry: Molecules in Cavities, Chapter 12, John Wiley & Sons.

Plasmon-Associated Control of Chemical Reaction at Nanometer Scale

S. Toyouchi, T. Inose, K. Hirai, H. Uji-i

Photosynergetic Responses in Molecules and Molecular Aggregates, p. 117–133, Springer Nature.

MOFの技術を用いたマイクロパターニングの開発とその応用

平井健二

ＰＣＰ／ＭＯＦおよび各種多孔質材料の作り方，使い方，評価解析, 第2章8節, 株式会社技術情報会. 

多孔性配位高分子の結晶膜

平井健二,  古川修平

配位空間の化学 –最新技術と応用–, 第6章3節, P. 249–257, CMC出版. 

光共振器を使った機能物性化学

平井健二

有機分子・バイオエレクトロニクス分科会会誌, 2023年, 第34巻2号, 58-61.

振動強結合による化学反応の制御と機能性材料の合成

平井健二

フォトニクスニュース, 2022年, 第8巻1号, 52, 応用物理学会

光共振器の中の化学反応 

平井健二

光学, 2022年, 第51巻1号, 28–33, 日本光学会

振動強結合と分子化学の交差 

平井健二

フロンティア, 2021年, 第3巻4号, 225–230, 理論化学会

光共振器で化学反応を制御　─量子ゆらぎと有機反応の接点 

平井健二

月刊化学2020年6月号, 12–15, 化学同人

光共振器を使った化学反応 – 化学反応と振動強結合

平井健二

academist Journal 研究コラム 2020年2月19日

プラズモン導波路を用いた単一細胞解析と操作

豊内秀一, 猪瀬朋子, 平井健二, 雲林院宏

月刊「細胞」2020年 2月号, 51–54, ニューサイエンス社 

金属錯体ナノスペースの創製と応用

平井健二,  北川進

科学と工業, 2012, 86, 151–155. 

多孔性金属錯体（PCP/MOF）の表面化学

平井健二,  古川修平

表面科学会誌, 2012, 33, 519–523 . 

Multifunctional Porous Crystals by Hybridizing Coordination Polymers

K. Hirai, O. Sakata, S. Kitagawa, S. Furukawa

SPring-8 Research Frontier 2011, 2012, 84–85. 

Evaluation of Structural Relationship in Hybridized Porous Coordination Polymer Crystals 

K. Hirai, S. Furukawa, O. Sakata, S. Kitagawa

SPring-8 Research Frontier 2009, 2010, 98–99. 

エピタキシャル成長によるハイブリッド型多孔性錯体結晶の創製 

平井健二

Bull. Jpn. Soc. Coord. Chem., 2010, 55, 121–122.