Substrate for transporting liquid, a system for analysis and a method for analysis
First Claim
1. A liquid transport substrate comprising:
- a first substrate;
an inlet into which a liquid droplet is inserted, provided on said first substrate;
an outlet from which said liquid droplet is ejected, provided on said first substrate;
a plurality of electrodes provided on said first substrate; and
an electrical conduction means to apply voltage at least a part of said plurality of electrodes, wherein said plurality of electrodes form a fluid channel through which liquid droplets are transported as a result of a voltage application by said electrical conduction means and a measuring section, wherein said fluid channel lies between said inlet and said outlet and said measuring section is located on at least a segment of said fluid channel,wherein said fluid channel at said outlet and/or a part of said fluid channel adjoining said outlet is open from above to outside of said liquid transport substrate and has ascending and descending slopes.
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Accused Products
Abstract
Conventional liquid transport substrates having a fluid channel formed along an array of electrodes have a problem in which throughput decreases, depending on driving conditions. In order to avoid two-way passage in a fluid channel from the inlet to a measuring section and a fluid channel from the measuring section to the outlet, the measuring section is located in the middle of the fluid channel connecting the inlet and the outlet, so that manipulation from the inlet to the outlet takes place in one direction on the substrate. Even when analyzing a large number of sample droplets, by transport of the droplets substantially in one direction, it is possible to complete measurement in a short time.
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Citations
18 Claims
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1. A liquid transport substrate comprising:
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a first substrate; an inlet into which a liquid droplet is inserted, provided on said first substrate; an outlet from which said liquid droplet is ejected, provided on said first substrate; a plurality of electrodes provided on said first substrate; and an electrical conduction means to apply voltage at least a part of said plurality of electrodes, wherein said plurality of electrodes form a fluid channel through which liquid droplets are transported as a result of a voltage application by said electrical conduction means and a measuring section, wherein said fluid channel lies between said inlet and said outlet and said measuring section is located on at least a segment of said fluid channel, wherein said fluid channel at said outlet and/or a part of said fluid channel adjoining said outlet is open from above to outside of said liquid transport substrate and has ascending and descending slopes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A liquid transport substrate comprising:
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a first substrate; a fluid channel provided on said substrate which is at least partly filled with an interstitial material; said fluid channel having an inlet into which liquid droplets are inserted and an outlet from which the liquid droplets are ejected; a plurality of electrodes provided on said first substrate; and a measuring section, wherein said fluid channel lies between said inlet and said outlet and said measuring section is located on at least a segment of said fluid channel, wherein said plurality of electrodes transport said droplets along said fluid channel between said inlet and said outlet, and wherein said fluid channel is open from above to outside of said liquid transport substrate and has an ascending sloped portion along which said droplets are transported by said plurality of electrodes to at least partly above a level of said interstitial material in said fluid channel. - View Dependent Claims (17, 18)
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Specification