Theoretical consideration and experimental investigation of existence of energy barrier in wetting of multi-pillar surface
Project/Area Number |
23540473
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Biophysics/Chemical physics
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Research Institution | Asahikawa Medical College (2012-2013) Hokkaido University (2011) |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
NONOMURA Yoshimune 山形大学, 大学院・理工学研究科, 准教授 (50451662)
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Project Period (FY) |
2011 – 2013
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
Keywords | ソフトマターの物理 / 濡れ現象 / 表面エネルギー / 自由エネルギー / エネルギー障壁 / ピン止め現象 / 表面張力 / 接触角 / ピン止めエネルギー |
Research Abstract |
Various surfaces can be seen in nature such as plants, insects and living matter. These surfaces are usually covered by hairs and flakes of organic compounds. Among them, lotus effect observed on lotus leave is well-known as a typical example of surface functions. Lotus leaves repel water completely and its surface is cleaned by rolling of water droplets (self-cleaning). On the other hand, one can find super-water-repellency on such surfaces in early stage, but, these show wettability by perturbation and passage of time. This physically means that the existence of an energy barrier between dewettable and wettable states. In this study, we have theoretically and experimentally studied wetting phenomena of multi-pillar surfaces as model surface of plants, insects and living matter to study the energy barrier.
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Report
(4 results)
Research Products
(98 results)
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[Presentation] マイクロ構造の変化による濡れ性への影響2014
Author(s)
山本峰秀、西川直樹、眞山博幸、中村振一郎、横島智、内田欣吾
Organizer
日本化学会第94春季大会(2014)
Place of Presentation
Tower hall Funabori (4-1-1 Funabori, Edogawa-ku, Tokyo)
Related Report
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[Presentation] Spatio-temporal change of BZ Gel2013
Author(s)
Hiroyuki Mayama and Yusuke Hara
Organizer
Joint Conference on Informatics in Biology, Medicine and Pharmacology, Tower hall Funabori
Place of Presentation
4-1-1 Funabori, Edogawa-ku, Tokyo
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[Presentation]2013
Author(s)
内田欣吾, 崎山慎吾, 西川直樹, 山添誠司, 小島優子, 山岡強, 眞山博幸, 横島智, 中村振一郎
Organizer
日本化学会第93春季年会
Place of Presentation
立命館大学びわこ・くさつキャンパス
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[Presentation] Fractal in Material2011
Author(s)
Hiroyuki Mayama
Organizer
Collraborative Conference on 3D & Materials Research (3DMR 2011)(招待講演)
Place of Presentation
Ramada Plaza Jeju Hotel, Jeju, South Korea
Related Report
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