Shimadzu Corporation

Kazusa Dna Research Institute

Kazusa Dna Research Institute Foundation

Ken Nonaka

Osamu Ohara

Tetsuo Ohashi

The purpose of the present invention is to provide a simple measurement tool which can rapidly measure various chemical substances contained in environments or from inside a living body by a simple or inexpensive means/method. The present inventions relate to, for example, a simple measurement tool for test substances comprising:

Simple measurement tool having reaction regions separated by gel boundary regions

Disclosed is a particle manipulation method including steps of moving particles, which exist in a water-based liquid, into a gelled medium that is insoluble or hardly soluble in the water-based liquid in the water-based liquid, and moving the particles, which exist in the gelled medium, to the outside of the gelled medium. Preferably, the gelled medium is a gel that contains chemically crosslinking polymer. Preferably, the gelled medium has a consistency of 340 to 475. In one embodiment, the movement of the particles existing in the water-based liquid to the gelled medium and the movement of the particles existing inside the gelled medium to the water-based liquid are carried out inside a device, the device being loaded with a plurality of water-based liquids and a gelled medium interposed among the water-based liquids.

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Kisarazu, Japan

Ken Nonaka