Method of moving fluid in capillary chip

Details Method of moving fluid in capillary chip Method of moving fluid in capillary chip

2006-06-06

2006-06-06

Chambers, A. Michael (Department: 3753)

Fluid handling

Processes

C137S803000, C137S828000, C137S833000, C204S601000, C422S105000

Reexamination Certificate

active

07055540

ABSTRACT:
The present invention is a method of moving a fluid in a capillary using a capillary chip having a layer including a polymer composition and a capillary formed on the surface or inside of the aforementioned layer including a polymer composition, wherein the aforementioned capillary has a movement control part, and the aforementioned movement control part includes multiple and sequential opening/closing parts; the aforementioned opening/closing part blocks movement of the fluid that flows in the aforementioned capillary by increase in the volume of the aforementioned polymer composition to result in the closed state, while it permits movement of the fluid that flows in the aforementioned capillary by decrease in the volume of the aforementioned polymer composition to result in the open state; and the aforementioned method of moving the fluid includes a step (a) of switching the aforementioned multiple opening/closing parts from the open state to the closed state sequentially in a movement direction by changing the temperature of the aforementioned polymer composition in the aforementioned movement control part, thereby moving the fluid in the aforementioned capillary.

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Tashiro, K., et al. “A Particles and Biomolecules Sorting Micro Flow System Using Thermal Gelation of Methyl Cellulose Solution.” Department of Electronics, Information and Communication Engineering, Department of Physics, Micro Total Analysis System 2001, pp. 471-473.

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