Aipore Inc.

Akihide Arima

Tomoji Kawai

Masateru Taniguchi

Makusu Tsutsui

Kazumichi Yokota

Wataru Tonomura

Takashi Washio

Provided is a channel device that is capable of increasing the concentration of fine particles in a liquid only by use of fluid-dynamic flows without relying on electrostatic interactions. A channel device () in accordance with an embodiment of the present invention includes: a main channel () configured to allow a liquid containing fine particles to flow therethrough; a chamber () that is provided at an end of the main channel () and that is configured to store target fine particles which have increased in concentration; and a side channel () that is connected to a side face of the main channel () and that is configured to allow unwanted liquid to drain therethrough, wherein at least one of a height and a width of the side channel () is smaller than a particle size of the fine particles.

Channel device and method for concentrating fine particles

It is an object to improve detection accuracy of an object as compared with prior arts. A flow passage () provided in a detection device () includes a substrate () and a covering member () provided at a position corresponding to the substrate (). A covering member opening (HL) of the covering member () is provided such that a substrate opening (HL) of the substrate () is not covered with the covering member (). The covering member () is arranged onto the substrate () such that a substrate capacitance and a covering member capacitance are connected in series. The covering member capacitance is lower than the substrate capacitance.

Flow passage

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Suita, Japan

Akihide Arima