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(11) | EP 1 270 066 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Method for transporting liquid, and microreactor |
| (57) The present invention provides a simple liquid (3) transportation method without
requiring high electric voltage or special external equipment, and a method for transporting
liquid based on this transportation method. The liquid transportation method comprises
a step of introducing a magnetic fluid (1) and a liquid (3) to be transported into
a conduit (2) or a chamber connected thereto so that the magnetic fluid and the liquid
to be transported are in contact with each other directly or indirectly via a medium,
a step of moving the magnetic fluid by applying a magnetic field (4), and a step of
moving above-mentioned liquid (3) to be transported by letting it follow the movement
of the magnetic fluid (1). The present invention also provides a simple transportation method of a specific amount of liquid without requiring high voltage or incorporation of specific actuator components such as valves. Using a conduit wherein at least three microchannels intersect one another and at least two of them have openings which can be opened or closed, opening and closing of the openings and liquid transportation are carried out in a controlled order, so that only a specific amount from a liquid introduced in an unspecific amount, is transported. |