Title:
流体の制御方法
Document Type and Number:
Japanese Patent JP4385166
Kind Code:
B2
Abstract:
There is provided a method of controlling a flow of a fluid in a microchannel, in which a part of a surface of the microchannel is a hydrophilization portion comprised of a substance being capable of decreasing a contact angle of water by irradiation of light, and the method comprises (1) irradiating the hydrophilization portion with light to decrease a contact angle of water of its surface (hydrophilization step), (2) releasing a substance for increasing a contact angle of water from a material for controlling a contact angle of water which contains the substance for increasing a contact angle of water which provides a surface having a contact angle of water larger than that of the hydrophilization portion after the decreasing of a contact angle of water (releasing step), and (3) bringing the released substance for increasing a contact angle of water into contact with the surface of the hydrophilization portion to adhere the substance for increasing a contact angle of water to the surface, thereby increasing the contact angle of water of the surface of the hydrophilization portion (hydrophobilization step). Also there is provided a valve utilizing the mentioned method. Thus, there are provided a fluid control method and valve which enable hydrophobilization and hydrophilization to be easily carried out in a noncontact manner in a microchannel without using a moving part.
Inventors:
Hidenori Nagai
Shinichi Wakita
Junko Takahashi
Shinichi Wakita
Junko Takahashi
Application Number:
JP2005514469A
Publication Date:
December 16, 2009
Filing Date:
October 01, 2004
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
Daikin Industries, Ltd.
Daikin Industries, Ltd.
International Classes:
B01J19/00; B01J35/02; B01L3/00; B81B1/00; C01G23/04; F15C5/00; F16K99/00; G01N27/447; G01N35/08; G01N37/00
Domestic Patent References:
| JP2003230829A | ||||
| JP2001158606A | ||||
| JP11156564A | ||||
| JP4071792A | ||||
| JP3124486A | ||||
| JP10267801A | ||||
| JP2003047832A |
Other References:
永井秀典,近接場光による光制御型マイクロバルブの集積化を利用したストレス計測用Point-of-Careデバイスの開発,独立行政法人新エネルギー・産業技術総合開発機構 平成17年度産業技術研究助成事業 研究成果報告書,日本,独立行政法人産業技術総合研究所,2006年 6月
Attorney, Agent or Firm:
Sota Asahina
Fumio Akiyama
Fumio Akiyama