| 摘要 |
In FIG. 2(a), both laminar flows, solution including fine grains and buffer solution, are supplied in a microchannel in a micro chip device, and gel including drug is supplied at a position contacting with the buffer solution. The fine grains in the solution including fine grains starts to react after contacting with the gel including drug, but the reaction does not start since the drug is separated from the buffer solution in FIG. 2 (c). If supply of the buffer solution is stopped in the above-mentioned state, the solution including fine grains and the gel including drug are contacted and the reaction between the fine grains and the drug can be observed at a fixed point. In such a device, it is sufficient to supply the gel including drug from the supply passage without coating the drug on a wall face of the microchannel and the drug coating operation can be omitted thereby.
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