Articles, Reviews

  1. Nanostructure-assisted optical tweezers for microspectroscopic polymer analysis
  2. Thermo-Plasmonic Trapping of Living Cyanobacteria on a Gold Nanopyramidal Dimer Array: Implications for Plasmonic Biochips
    • Shota Naka, Tatsuya Shoji, Sho Fujii, Kosei Ueno, Yumi Wakisaka, Kei Murakoshi, Tadashi Mizoguchi, Hitoshi Tamiaki, Yasuyuki Tsuboi
    • ACS Appl. Nano Mater., 3 (2020), 10067-10072.
    • DOI: 10.1021/acsanm.0c02071
  3. Optical Trapping of Polystyrene Nanoparticles on Black Silicon: Implications for Trapping and Studying Bacteria and Viruses
    • Sawa Komoto, Tatsuya Nagai, Ryota Takao, Kenta Ushiro, Mitsuhiro Matsumoto, Tatsuya Shoji*, Denver P. Linklater, Saulius Juodkazis, Yasuyuki Tsuboi*
    • ACS Appl. Nano Mater., 3 (2020), 9831-9841.
    • DOI: 10.1021/acsanm.0c01901
  4. Microanalysis of Single Poly(N-isopropylacrylamide) Droplet Produced by an Optical Tweezer in Water: Isotacticity Dependence of Growth and Chemical Structure of the Droplet
  5. Nanodot array deposition via single shot laser interference pattern using laser-induced forward transfer”
    • Yoshiki Nakata*, Eiki Hayashi, Koji Tsubakimoto, Noriaki Miyanaga, Aiko Narazaki, Tatsuya Shoji, Yasuyuki Tsuboi
    • Int. J. Extreme Manuf., 2 (2020), 025101.
    • DOI: 10.1088/2631-7990/ab88bf
  6. Electrophoretic Adhesion of Conductive Hydrogels
    • Taka-Aki Asoh*, Megumi Nakamura, Tatsuya Shoji, Yasuyuki Tsuboi, Hiroshi Uyama
    • Macromol. Rapid Commun., 41 (2020), 2000169.
    • DOI: 10.1002/marc.202000169
  7. Plasmonic Manipulation of DNA using a Combination of Optical and Thermophoretic Forces: Separation of Different-Sized DNA from Mixture Solution
    • Tatsuya Shoji, Kenta Itoh, Junki Saitoh, Noboru Kitamura, Takahiro Yoshii, Kei Murakoshi, Yuto Yamada, Tomohiro Yokoyama, Hajime Ishihara, Yasuyuki Tsuboi*
    • Sci. Rep., 10 (2020), 3349.
    • DOI: 10.1038/s41598-020-60165-5
  8. Regular Assembly of Polymer Nanoparticles by Optical Trapping Enhanced with a Random Array of Si Needles for Reconfigurable Photonic Crystals in Liquid
    • Itsuo Hanasaki*, Tatsuya Shoji, Yasuyuki Tsuboi*
    • ACS Appl. Nano Mater., 2 (2019), 7637-7643.
    • DOI: 10.1021/acsanm.9b01707
  9. Nanotraffic Lights: Rayleigh Scattering Microspectroscopy of Optically Trapped Octahedral Gold Nanoparticles
    • Tatsuya Shoji*, Mamoru Tamura, Tatsuya Kameyama, Takuya Iida, Yasuyuki Tsuboi, Tsukasa Torimoto
    • J. Phys. Chem. C, 123 (2019), 23096-23102.
    • DOI: 10.1021/acs.jpcc.9b05077
  10. Dynamics of the Phase Separation in a Thermoresponsive Polymer: Accelerated Phase Separation of Stereocontrolled Poly(N,N-diethylacrylamide) in Water.
    • Mitsuhiro Matsumoto, Takanori Tada, Taka-Aki Asoh, Tatsuya Shoji, Takashi Nishiyama, Hideo Horibe, Yukiteru Katsumoto, Yasuyuki Tsuboi*
    • Langmuir, 34 (2018), 13690-13696.
    • DOI: 10.1021/acs.langmuir.8b02848
  11. Laser Trapping/confocal Raman Spectroscopic Characterization of PLGA-PEG Nanoparticles.
    • Jie Yang, Ruo-Nan Zhang, Dong-Jie Liu, Xu Zhou, Tatsuya Shoji, Yasuyuki Tsuboi, Hu Yan*
    • Soft Matter, 14 (2018), 8090-8094.
    • DOI: 10.1039/C8SM01364K
  12. Local Melting of Gold Thin Films by Femtosecond Laser-Interference Processing to Generate Nanoparticles on a Source Target.
    • Yoshiki Nakata*, Keiichi Murakawa, Noriaki Miyanaga, Aiko Narazaki, Tatsuya Shoji, Yasuyuki Tsuboi
    • Nanomaterials, Vol. 8 (2018), 477.
    • DOI: 10.3390/nano8070477
  13. Optical tweezing and binding at high irradiation powers on black-Si.
    • Tatsuya Shoji, Ayaka Mototsuji, Armandas Balčytis, Denver Linklater, Saulius Juodkazis, Yasuyuki Tsuboi*
    • Sci. Rep., 7 (2017), 12298.
    • DOI: 10.1038/s41598-017-12470-9
    • プレスリリースはこちら　（PDF）
    • 9月29日付の化学工業日報（朝刊4面）、10月19日付の日刊工業新聞にて紹介
    • 2017年Sci. Rep.誌の年間アクセスランキングTop100（物理分野）に選出link
  14. “Plasmonic optical trapping of nanometer-sized J- /H- dye aggregates as explored by fluorescence microspectroscopy.” link
    • Ayaka Mototsuji, Tatsuya Shoji, Yumi Wakisaka, Kei Murakoshi, Hiroshi Yao, and Yasuyuki Tsuboi
    • Opt. Exp., Vol. 25, (2017), 13617-13625.
    • DOI: 10.1364/OE.25.013617 (Open Access)
  15. “Rapid hydrogel repair utilizing microgel architectures.” link
    • Taka-Aki Asoh, Hisayoshi Kinoshita, Tatsuya Shoji, Akihiko Kikuchi and Yasuyuki Tsuboi
    • Mater. Chem. Front., Vol. 1 (2017), 1594-1599.
    • DOI: 10.1039/C6QM00370B
  16. “Highly Sensitive Detection of Organic Molecules on the Basis of a Poly(N-isopropylacrylamide) Microassembly Formed by Plasmonic Optical Trapping.” link
    • Tatsuya Shoji*, Daiki Sugo, Fumika Nagasawa, Kei Murakoshi, Noboru Kitamura, and Yasuyuki Tsuboi
    • Anal. Chem., Vol. 89 (2017), 532–537.
    • DOI: 10.1021/acs.analchem.6b04024
    • 日本光学会「2016年　日本の光学研究」に選出。
    • 日本分析化学会　第77回分析化学討論会「展望とトピックス」に選出。
  17. “Rapid Phase Separation in Aqueous Solution of Temperature-Sensitive Poly(N,N-diethylacrylamide)” link
    • Mitsuhiro Matsumoto, Ryo Wakabayashi, Takanori Tada, Taka-Aki Asoh, Tatsuya Shoji, Noboru Kitamura, Yasuyuki Tsuboi
    • Macromol. Chem. Phys., Vol. 217 (2016), 2576–2583.
    • DOI: 10.1002/macp.201600239
    • Selection of a journal back cover
  18. “Effects of Syndiotacticity on the Dynamic and Static Phase Separation Properties of Poly(N-Isopropylacrylamide) in Aqueous Solution” link
    • Takanori Tada, Tomohiro Hirano, Koichi Ute, Yukiteru Katsumoto, Taka-Aki Asoh, Tatsuya Shoji, Noboru Kitamura, Yasuyuki Tsuboi
    • J. Phys Chem. B, Vol. 120 (2016), 7724-7730.
    • DOI: 10.1021/acs.jpcb.6b03200
  19. “Biodegradable PLGA Nanoparticles Loaded with Hydrophobic Drugs: Confocal Raman Microspectroscopic Characterization” link
    • Hu Yan, Yi-Fan Hou, Peng-Fei Niu, Ke Zhang, Tatsuya Shoji, Yasuyuki Tsuboi, Fang-Yao Yao, Li-Min Zhao and Junbiao Chang
    • J. Mater. Chem. B, Vol. 3 (2015), 3677-3680.
    • 10.1039/C5TB00434A
  20. “Plasmonic optical trapping of soft nanomaterials such as polymer chains and DNA: micro-patterning formation” link
  21. “A method for an approximate determination of a polymer-rich-domain concentration in phase-separated poly(N-isopropylacrylamide) aqueous solution by means of confocal Raman microspectroscopy combined with optical tweezers.” link
    • Tatsuya Shoji*, Riku Nohara, Noboru Kitamura and Yasuyuki Tsuboi
    • Anal. Chim. Acta, Vol. 854 (2015), pp. 118-121.
    • 10.1016/j.aca.2014.11.001
    • 日本分析化学会　第76回分析化学討論会「展望とトピックス」選出
  22. “Plasmonic Optical Tweezers toward Molecular Manipulation: Tailoring Plasmonic Nanostructure, Light Source, and Resonant Trapping”
    • Tatsuya Shoji* and Yasuyuki Tsuboi*
    • J. Phys. Chem. Lett., Vol. 5 (2014), pp. 2957-2967.
    • 10.1021/jz501231h
    • ACS Editor’s choice & Highlighted as a cover art
  23. “Permanent Fixing or Reversible Trapping and Release of DNA Micropatterns on a Gold Nanostructure Using Continuous-Wave or Femtosecond-Pulsed Near-Infrared Laser Light”
    • Tatsuya Shoji, Junki Saito, Noboru Kitamura, Fumika Nagasawa, Kei Murakoshi, and Yasuyuki Tsuboi*
    • J. Am. Chem. Soc., Vol. 135, No. 17 (2013), pp. 6643-6648.
    • 10.1021/ja401657j
    • 北海道新聞　2013年4月16日（火）付、科学新聞　2013年5月3日（金）付にて紹介
  24. “Resonant Excitation Effect on Optical Trapping of Myoglobin: The Important Role of a Heme Cofactor”
    • Tatsuya Shoji, Noboru Kitamura, and Yasuyuki Tsuboi*
    • J. Phys. Chem. C, Vol. 117, No. 20 (2013), pp. 10691-10697
    • 10.1021/jp311091u
  25. “Accelerating the Phase Separation in Aqueous Poly(N-isopropylacrylamide) Solutions by Slight Modification of the Polymer Stereoregularity: A Single Molecule Fluorescence Study”
    • Takanori Tada, Yukikteru Katsumoto, KarelGoossens, Hiroshi Uji-I, Johan Hofkens, Tatsuya Shoji, Noboru Kitamura*, and Yasuyuki Tsuboi*
    • J. Phys. Chem. C, Vol. 117, No. 20 (2013), pp. 10818-10824.
    • 10.1021/jp4027173
  26. “Reversible Photoinduced-Formation and Manipulation of a Two-dimensional Closely Packed Assembly of Polystyrene Nanospheres on a Metallic Nanostructure”
    • Tatsuya Shoji, Noboru Kitamura, Fumika Nagasawa, Kei Murakoshi, Hajime Ishihara, and Yasuyuki Tsuboi*
    • J. Phys. Chem. C. Vol. 117, No. 6 (2013), pp. 2500-2506.
    • 10.1021/jp306405j
  27. “Metallic-Nanostructure-Enhanced Optical Trapping of Flexible Polymer Chains in Aqueous Solution as Revealed by Confocal Fluorescence Microspectroscopy”
    • Mariko Toshimitsu, Yuriko Matsumura, Tatsuya Shoji, Noboru Kitamura, Mai Takase, Kei Murakoshi, Hiroaki Yamauchi, Syoji Ito, Hiroshi Miyasaka, Atsushi Nobuhiro, Yoshihiko Mizumoto, Hajime Ishihara, Yasuyuki Tsuboi
    • J. Phys. Chem. C, Vol. 116, No. 27 (2012), pp. 14610-14618.
    • 10.1021/jp305247a
  28. “Nano Porous Films Processing of Polymer Films Based on Localized Surface Plasmon Resonance of Au Nanoparticles”
    • Keita Muraoka, Kazushi Yamada, Tatsuya Shoji, Hiroyuki Sugimura, Noboru Kitamura, Yasuyuki Tsuboi
    • J. Laser Micro. Nanoen., Vol. 7, no. 3 (2012), pp. 260-263.
    • 10.2961/jlmn.2012.03.0005
  29. “Phase-Separation Dynamics of Aqueous Poly (N-isopropylacrylamide) Solutions: Characteristic Behavior of the Molecular Weight and Concentration Dependences”
    • Yasuyuki Tsuboi, Takanori Tada, Tatsuya Shoji, Noboru Kitamura
    • Macromol. Chem. Phys., Vol. 213, No. 18 (2012), pp. 1879-1884.
    • 10.1002/macp.201200190
  30. “Plasmon-Based Optical Trapping of Polymer Nano-Spheres as Explored by Confocal Fluorescence Microspectroscopy: A Possible Mechanism of a Resonant Excitation Effect”
    • Tatsuya Shoji; Mizumoto, Yoshihiko; Ishihara, Hajime; Kitamura, Noboru; Takase, Mai; Murakoshi, Kei; Tsuboi, Yasuyuki
    • Jpn. J. Appl. Phys., Vol. 51, (2012), 092001.
    • 10.1143/JJAP.51.092001
    • 応用物理学会論文賞（論文奨励賞）受賞
    • Japanese Journal of Applied Physics誌　Spotlight Paper選出 (2012年9月号)
  31. “Acceleration of a photochromic ring-opening reaction of diarylethene derivatives by excitation of localized surface plasmon”
    • Tsuboi, Yasuyuki; Shimizu, Ryosuke; Tatsuya Shoji; Kitamura, Noboru; Takase, Mai; Murakoshi, Kei
    • J. Photochem. Photobiol., A, Vol. 221, No. 2-3 (2011), pp. 250-255.
    • 10.1016/j.jphotochem.2011.04.016
  32. “Optical trapping of amino acids in aqueous solutions”
    • Tsuboi, Yasuyuki; Tatsuya Shoji; Kitamura, Noboru
    • J. Phys. Chem. C, Vol. 114, No. 12 (2010), pp. 5589-5593.
    • 10.1021/jp9072334
  33. “Enhancement of 2-Photon Absorption of a Dye in a Polymer Microsphere Based on an Optical Cavity Effect”
    • Tsuboi, Yasuyuki; Shimizu, Ryosuke; Tatsuya Shoji; Kitamura, Noboru
    • Anal. Sci., Vol. 26, No. 12 (2010), pp. 1241-1245.
    • 10.2116/analsci.26.1241
    • Analytical Science 誌　Hot Article Award受賞 (2010年12月号)
  34. “Optical trapping of quantum dots based on gap-mode-excitation of localized surface plasmon”
    • Tsuboi, Yasuyuki; Tatsuya Shoji; Kitamura, Noboru; Takase, Mai; Murakoshi, Kei; Mizumoto, Yoshihiko; Ishihara, Hajime
    • J. Phys. Chem. Lett., Vol. 1, No. 15 (2010), pp. 2327-2333.
    • 10.1021/jz100659x
  35. “Near-Infrared Continuous-Wave Light Driving a Two-Photon Photochromic Reaction with the Assistance of Localized Surface Plasmon”
    • Tsuboi, Yasuyuki; Shimizu, Ryosuke; Tatsuya Shoji; Kitamura, Noboru
    • J. Am. Chem. Soc., Vol. 131, No. 35 (2009), pp. 12623-12627.
    • 10.1021/ja9016655
  36. “Optical manipulation of proteins in aqueous solution”
    • Tsuboi, Yasuyuki; Tatsuya Shoji; Nishino, Masayuki; Masuda, Seiji; Ishimori, Koichiro; Kitamura, Noboru
    • Appl. Surf. Sci., Vol. 255 (2009), No. 24, pp.9906-9908.
    • 10.1016/j.apsusc.2009.04.117
  37. “Preparation of large-scale 2D zeolite crystal array structures to achieve optical functionality”
    • Shuichi Hashimoto, Kazuo Samata, Tatsuya Shoji, Nobuyuki Taira, Takuro Tomita, Shigeki Matsuo
    • Micropor. Mesopor. Mat., Vol. 117, No. 1-2 (2009), 220-227.
    • 10.1016/j.micromeso.2008.06.028
  38. “Crystallization of lysozyme based on molecular assembling by photon pressure”
    • Tsuboi, Yasuyuki; Shoji, Tatsuya; Kitamura, Noboru
    • J.pn. J. Appl. Phys., Vol. 46, No. 45-49 (2007), L1234-L1236.
    • 10.1143/JJAP.46.L1234