Method of reaction in flow channel of microchip and analysis device
First Claim
1. A reaction method for performing a reaction in a reaction flow channel of a microchip, the microchip including (i) the reaction flow channel, wherein a reacting material is fixed on an inner wall surface of the reaction flow channel, (ii) a first flow channel connected upstream of the reaction flow channel, wherein a gas is stored in the first flow channel, and (iii) a second flow channel connected downstream of the reaction flow channel, and the reaction method comprising:
- flowing a first reagent liquid into the second flow channel through the first flow channel and the reaction flow channel in a forward direction, whereby a peripheral portion of a gas-liquid interface at a front end of the first reagent liquid passes along the inner wall surface of the reaction flow channel in the forward direction;
flowing back the first reagent liquid into the first flow channel through the reaction flow channel in a reverse direction, whereby the peripheral portion passes along the inner wall surface of the reaction flow channel in the reverse direction; and
flowing the first reagent liquid into the second flow channel through the reaction channel again in the forward direction, whereby the peripheral portion once again passes along the inner wall surface of the reaction flow channel in the forward direction,wherein the reaction is performed by contacting the first reagent liquid with the reaction material fixed on the inner wall surface of the reaction flow channel.
0 Assignments
0 Petitions
Accused Products
Abstract
In the case of passing a reagent in a reaction channel in a microchip, which carries a reactant capable of reacting with the reagent on the wall thereof, and bringing the reactant into contact with the reagent so as to carry out a reaction, the reagent is efficiently passed to the reactant to thereby promote the progress of the reaction. In carrying out the reaction as described above, the reagent (30a) is passed in such a manner that the periphery of the gas/liquid interface at the front end of the reagent moves forward and backward along the wall face of the reaction channel (10). After the completion of the reaction between the reagent (30a) and the reactant, another reagent (30b), which is to be reacted with the reactant capable of reacting with the reagent that is carried on the reaction channel, is passed into the reaction channel (10) while providing a gas in the front edge side thereof. In carrying out the reaction, the reagent (30b) is passed in such manner that the periphery of the gas/liquid interface at the front end of the reagent moves forward and backward along the wall face of the reaction channel (10).
15 Citations
7 Claims
-
1. A reaction method for performing a reaction in a reaction flow channel of a microchip, the microchip including (i) the reaction flow channel, wherein a reacting material is fixed on an inner wall surface of the reaction flow channel, (ii) a first flow channel connected upstream of the reaction flow channel, wherein a gas is stored in the first flow channel, and (iii) a second flow channel connected downstream of the reaction flow channel, and the reaction method comprising:
-
flowing a first reagent liquid into the second flow channel through the first flow channel and the reaction flow channel in a forward direction, whereby a peripheral portion of a gas-liquid interface at a front end of the first reagent liquid passes along the inner wall surface of the reaction flow channel in the forward direction; flowing back the first reagent liquid into the first flow channel through the reaction flow channel in a reverse direction, whereby the peripheral portion passes along the inner wall surface of the reaction flow channel in the reverse direction; and flowing the first reagent liquid into the second flow channel through the reaction channel again in the forward direction, whereby the peripheral portion once again passes along the inner wall surface of the reaction flow channel in the forward direction, wherein the reaction is performed by contacting the first reagent liquid with the reaction material fixed on the inner wall surface of the reaction flow channel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification