Nano- and Micro- fabrication process for novel hydro-gel devices

• Project/Area Number: 23560856
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Material processing/treatments
• Research Institution: The Institute of Physical and Chemical Research (2012-2014); Hokkaido University (2011)
• Principal Investigator: SHIMAMOTO Naonobu 独立行政法人理化学研究所, 創発物性科学研究センター, 客員研究員 (50386629)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 微細加工 / ナノ・マイクロ加工 / ハイドロゲル / フォトニック結晶 / 構造色 / フォトニッククリスタル / ナノ・マイクロ / ナノフォトニクス / ナン・マイクロ / 複合材料

Outline of Final Research Achievements

We have developed the fabrication method of nano- or micro-meter-scale metal thin film patterns on hydro-gels. In this method, patterned metal films, which were prepared by top-down method, e.g. lithography and vapor deposition, were immobilized on gels by the polymerization of gel monomers on the pattern films. In this work, we prepared Au dot array or line-and-space patterns on poly-acrylic acid hydrogels. These metallic periodic patterns on hydrogels make available for various applications. We succeeded in high-accuracy measurements of gel swelling and shrinking by using the laser diffraction with Au patterns on gels. Au nano-dot array on gels can produce iridescent color, and its spectral response can be finely modulated by changing the nano-dot spacing with hydrogel swelling and shrinking.

Research Products

• [Journal Article] Nanopattern fabrication of gold on hydrogels and application to tunable photonic crystal (2012)
  • Author(s): Naonobu Shimamoto, Yoshito Tanaka, Hideyuki Mitomo, Ryuzo Kawamura, Kuniharu Ijiro, Keiji Sasaki, Yoshihito Osada
  • Journal Title: Advanced Materials Volume: 24 Issue: 38 Pages: 5243-5248
  • DOI: 10.1002/adma.201201522
  • Peer Reviewed
• [Presentation] Metal array structures on the stimuli-responsive gel (2014)
  • Author(s): H. Mitomo, N. Shimamoto, K. Horie, Y. Matsuo, K. Niikura, K. Ijiro
  • Organizer: The International Society for Optics and Photonics
  • Place of Presentation: San Diego Convention Center, San Diego, CA, US
  • Year and Date: 2014-08-18
• [Presentation] Hybridization of inorganic matters to polymer gels for enhancing the strength and functionality (2013)
  • Author(s): H. Mitomo, N. Shimamoto, Ken-ichi Sano, Y. Osada, K. Ijiro
  • Organizer: International Symposium on Advanced Soft Materials
  • Place of Presentation: Hokkaido University
• [Presentation] ゲル表面への金属マイクロパターンの作製 (2011)
  • Author(s): 島本直伸，三友秀之，川村隆三，川端邦明，岸 良一，佐野健一，居城邦治，長田義仁
  • Organizer: 第60回 高分子討論会
  • Place of Presentation: 岡山大学津島キャンパス(岡山市)
• [Presentation] Fabrication of metal thin film patterns on hydro-gels (2011)
  • Author(s): Naonobu Shimamoto, Hideyuki Mitomo, Ryuzo Kawamura, Kuniaki Kawabata, Ryo-ichi Kishi, Ken-ichi Sano, Kunihiro Ijiro, Yoshihito Osada
  • Organizer: 24th International Microprocesses and Nanotechnology Conference
  • Place of Presentation: ANA Hotel Kyoto, Kyoto, Japan
• [Presentation] Thin film micro grating on hydro-gels for fine measurement (2011)
  • Author(s): Naonobu Shimamoto, Hideyuki Mitomo, Ryuzo Kawamura, Yoshihito Osada, Kunihiro Ijiro
  • Organizer: 12th International Symposium of Research Institute of Electronic Science of Hokkaido University
  • Place of Presentation: Chateraise Gateaux Kingdom Sapporo, Sapporo, Japan
• [Presentation] Fabrication of nano- or micro-meter scale pattern on hydrogels
  • Author(s): Naonobu Shimamoto, Hideyuki Mitomo, Ryuzo Kawamura, Ryo Kishi, Yoshito Tanaka, Keiji Sasaki, Kunniharu Ijiro, Yoshihi Osada
  • Organizer: 61st SPSJ Annual Meeting
  • Place of Presentation: Pacifico Yokohama, Yokohama
• [Presentation] ゲル表面への金属ナノ・マイクロパターンの作製と光学的応用
  • Author(s): 島本直伸, 三友秀之, 田中嘉人, 林 智弘, 川村隆三, 岸良一, 秋元彦太, 笹木敬司, 長田義仁, 居城邦治
  • Organizer: 第61回高分子討論会
  • Place of Presentation: 名古屋工業大学, 名古屋市
• [Presentation] Fabrication of metal thin film micro pattern on hydrogels for photonic applications
  • Author(s): Naonobu Shimamoto, Yoshito Tanaka, Hideyuki Mitomo, Tomohiro Hayashi, Ryuzo Kawamura, Hikota Akimoto, Kuniharu Ijiro, Keiji Sasaki, Yoshihito Osada
  • Organizer: 9th International Gel Symposium
  • Place of Presentation: Tsukuba International Congress Center, Tsukuba, Japan
• [Presentation] Preparation of Au Nano or Micro Pattern on Hydrogels for Optical Applications
  • Author(s): Naonobu Shimamoto, Yoshito Tanaka, Hideyuki Mitomo, Ryuzo Kawamura, Kuniharu Ijiro, Keiji Sasaki, Yoshihito Osada
  • Organizer: PRiME 2012 (222nd Meeting of The Electrochemical Society and 2012 Fall Meeting of The Electrochemical Society of Japan)
  • Place of Presentation: Hawaii Convention Center, Honolulu, USA
• [Patent(Industrial Property Rights)] 異種材料が接合した重合体、及びその製造方法 (2011)
  • Inventor(s): 長田義仁, 居城邦治, 島本直伸, 藤根学, 他4名
  • Industrial Property Rights Holder: 理研,北海道大学,トヨタ自動車
  • Industrial Property Number: 2011-198897
  • Filing Date: 2011