Flow control in microfluidics devices by controlled bubble formation
First Claim
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1. A fluid control device comprising:
- (a) a channel of capillary dimensions for conveying a liquid;
(b) a bubble-forming device for forming a channel-blocking bubble in the channel comprising two or more electrodes which operate, when sufficient voltage is applied to the electrodes, to form the bubble, wherein such a bubble formed in the channel impedes the flow of the liquid through the channel.
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Abstract
Provided is a fluid control device comprising: (a) a channel of capillary dimensions for conveying a liquid, (b) a bubble-forming device for forming a channel-blocking bubble in the channel, wherein such a bubble formed in the channel impedes the flow of the liquid through the channel.
257 Citations
14 Claims
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1. A fluid control device comprising:
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(a) a channel of capillary dimensions for conveying a liquid; (b) a bubble-forming device for forming a channel-blocking bubble in the channel comprising two or more electrodes which operate, when sufficient voltage is applied to the electrodes, to form the bubble, wherein such a bubble formed in the channel impedes the flow of the liquid through the channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of creating a diffusion barrier between segments of a liquid in a channel of capillary dimensions comprising:
operating a bubble-forming device for forming multiple channel-traversing bubbles in the channel to separate multiple segments of liquid.
Specification