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Title:
マイクロスケールにおけるガスバブルの移動を利用した流体ポンプ装置及びその方法
Document Type and Number:
Japanese Patent JP4192144
Kind Code:
B2
Abstract:
A fluid pumping method for micro-fluidic devices uses gas bubbles to move fluid by light beams. The light beams are emitted to the fluid near the gas bubble through an optically transparent cover and correspondingly heat the fluid in the micro channels. The liquid temperature variation changes the surface tension of the gas bubble near the heated fluid side, therefore, a pressure gradient between the end portions of the gas bubble generates accordingly. By moving the light beams, the moved pressure difference will be achieved, which will drive the gas bubbles and pump the fluid. Such a fluid pumping can simplify the structure of a micro-fluidic device and eliminate heat loss because of using a controllable light beam.

Inventors:
Zhao Kei
Natalia Ivanova
Application Number:
JP2004362234A
Publication Date:
December 03, 2008
Filing Date:
December 15, 2004
Export Citation:
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Assignee:
SAMSUNG ELECTRONICS CO.,LTD.
International Classes:
B01J4/00; B01J19/00; B81B5/00; G01N37/00; B81B7/02; F04B9/00; F04B19/00; F04B19/24
Domestic Patent References:
JP2005024544A
JP2005538287A
Attorney, Agent or Firm:
Yukio Ono
Tomoko Inazumi