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2019 Fiscal Year Final Research Report

Light-driven actuators based on energy confinement microchips

Research Project

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Project/Area Number 17K18849
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Mechanical dynamics, Robotics, and related fields
Research InstitutionYamagata University

Principal Investigator

Nishiyama Hiroaki  山形大学, 大学院理工学研究科, 准教授 (80403153)

Project Period (FY) 2017-06-30 – 2020-03-31
Keywords表面プラズモン共鳴 / MEMS / マイクロアクチュエータ
Outline of Final Research Achievements

Near-infrared light-stimulated actuations of microgels were investigated for highly functional microactuators in biological applications. Incident light of 830 nm wavelength was coupled to the plasmonic waves on metallic nanostructures buried inside microgels.The microgels exhibited marked deformation, depending on size, shape and layout of the metallic structures. Such plasmonic photothermal conversion was effective for soft microactuators with high controllability.

Free Research Field

光MEMS,レーザー工学

Academic Significance and Societal Importance of the Research Achievements

金属ナノ構造が特異的な光学応答性を持つことは学術的にはよく知られている.この研究はこの現象を材料変形に生かすことを狙ったものである.どのような光集束性を生み出せば,どのくらいの材料変形を生み出せるのか,制御性はどうなのかなどを定量的に明らかにした.
社会的意義としては,生体透過光で複雑変形が可能なマイクロアクチュエータは,応用上は新しい治療法の開発に貢献が出来る.生体内の微小部位に力学的作用を及ぼすことは現在なお容易ではなく,従来の生化学的な治療アプローチでは対応が困難な領域を補うことが期待できる.

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Published: 2021-02-19  

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