2013 Fiscal Year Final Research Report
Design of Optical Function of Metallic Nanoparticle Composite and Application for Highly-Sensitive Sensor
| Project/Area Number |
23655072
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
TOKONAMI Shiho 大阪府立大学, 21世紀科学研究機構, 講師 (60535491)
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| Co-Investigator(Kenkyū-buntansha) |
IIDA Takuya 大阪府立大学, 21 世紀科学研究機構, 講師 (10405350)
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| Project Period (FY) |
2011 – 2013
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| Keywords | バイオセンサ / 光検出 / ラベルフリー / 金属ナノ粒子 |
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| Research Abstract |
In this study, we performed the chemical design of the arrangement of metallic nanoparticles and the shape of nanostructures for aiming at the development of highly sensitive optically-driven biosensor, the local temperature sensor and so on. As a fundamental achievement, it has been clarified that linear and nonlinear optical responses can be significantly enhanced by fixing metallic (Au or Ag) nanoparticles densely onto a plastic bead with binder molecules. Also, in the similar system, we have revealed that the optical control of heat coagulation, and we have obtained an important knowledge for the development of temperature sensor based on the optical detection in nano- and micro-spaces. Furthermore, we have clarified that light scattering decreases or increases at particular wavelength regions by binding heterogeneous metallic nanostructures via DNA. This result indicates the possibility that a small amount of DNA less than amol can be detected even by white light irradiation.
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[Journal Article] Selective Optical Assembly of Highly Uniform Nanoparticles by Doughnut-Shaped Beams2013
Author(s)
S. Ito, H. Yamauchi, S. Hidaka, M.Tamura, H. Hattori, T. Hamada, K. Nishida, S. Tokonami, T. Itoh, H. Miyasaka, T. Iida
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Journal Title
Sci. Rep. (NPG)
Volume: 3
Pages: 3047, 1-7
DOI
Peer Reviewed
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[Presentation] 揺らぎの下でのナノ光アセンブリングの理論2014
Author(s)
飯田琢也, 田村守, 日高慎平, 服部祐徳, 濱田大地, 西田敬亮, 床波志保, 伊藤民武, 山内宏昭, 宮坂博, 伊都将司
Organizer
第61年応用物理学会春季大会
Place of Presentation
青山学院大学
Year and Date
2014-03-17
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[Remarks] Yahoo!ニュース,「金属ナノ粒子の水溶液から均一な粒子だけを操作することに成功」, 2013年10月30日(水).(メディア発表, プレスリリース)
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[Remarks] 大阪府立大学, 大阪大学共同プレスリリース, 「ドーナツビームと揺らぎの効果でナノ粒子の高均一化と配列に成功-医薬品の分離抽出, 光エネルギー変換の革新に期待-」, 2013年10月25日.(メディア発表, プレスリリース)
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[Remarks] VerticalNews, "Researchers Submit Patent Application, "Device and Method Utilizing a Metallic Nanoparticle Assembly Structure for Detecting a Target Substance", for Approval", 2013年10月14日(月).(メディア発表, プレスリリース)
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[Remarks] VerticalNews, "New Nanoparticles Findings from National Institute for Materials Science Discussed", 2013年9月30日(月).(メディア発表, プレスリリース)
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[Remarks] 日経産業新聞『先端人「一瞬の喜び」糧に研究』2012年4月5日(メディア発表, プレスリリース)
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