Systems and methods for obtaining a droplet having a designated concentration of a substance-of-interest
First Claim
1. A method comprising:
- providing a droplet actuator having a droplet-operations gap and a plurality of electrodes positioned along the droplet-operations gap;
positioning an input droplet in the droplet-operations gap, the input droplet having a starting concentration of a substance-of-interest;
conducting droplet operations within the droplet-operations gap using the electrodes to generate discrete dilution droplets that are formed from the input droplet, wherein the dilution droplets and a remainder of the input droplet form a droplet set, at least two of the dilution droplets in the droplet set having different concentrations of the substance-of-interest; and
combining a select number of the droplets from the droplet set to form an output droplet having a modified concentration that is substantially equal to a designated target concentration.
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Abstract
Method includes providing a droplet actuator having a droplet-operations gap and a plurality of electrodes positioned along the droplet-operations gap. The method also includes positioning an input droplet in the droplet-operations gap. The input droplet has a starting concentration of a substance-of-interest. The method also includes conducting droplet operations within the droplet-operations gap using the electrodes to generate discrete dilution droplets that are formed from the input droplet. The dilution droplets and a remainder of the input droplet form a droplet set. At least two of the dilution droplets in the droplet set having different concentrations of the substance-of-interest. The method also includes combining a select number of the droplets from the droplet set to form an output droplet having a modified concentration that is substantially equal to a designated target concentration.
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Citations
20 Claims
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1. A method comprising:
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providing a droplet actuator having a droplet-operations gap and a plurality of electrodes positioned along the droplet-operations gap; positioning an input droplet in the droplet-operations gap, the input droplet having a starting concentration of a substance-of-interest; conducting droplet operations within the droplet-operations gap using the electrodes to generate discrete dilution droplets that are formed from the input droplet, wherein the dilution droplets and a remainder of the input droplet form a droplet set, at least two of the dilution droplets in the droplet set having different concentrations of the substance-of-interest; and combining a select number of the droplets from the droplet set to form an output droplet having a modified concentration that is substantially equal to a designated target concentration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a droplet actuator having a droplet-operations gap and a plurality of electrodes positioned along the droplet-operations gap, the droplet-operations gap configured to receive an input droplet, the input droplet having a starting concentration of a substance-of-interest; and a controller operably coupled to the electrodes of the droplet actuator, the controller configured to control the electrodes to; conduct droplet operations within the droplet-operations gap using the electrodes to generate discrete dilution droplets that are formed from the input droplet, wherein the dilution droplets and a remainder of the input droplet form a droplet set, at least two of the dilution droplets in the droplet set having different concentrations of the substance-of-interest; and combining a select number of the droplets from the droplet set to form an output droplet, the output droplet having a modified concentration of the substance-of-interest that is substantially equal to a designated target concentration. - View Dependent Claims (13, 14)
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15. A method comprising:
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loading sample droplets into a droplet actuator, the droplet actuator having a droplet-operations gap and a plurality of electrodes positioned along the droplet-operations gap, the sample droplets being separated from one another in the droplet-operations gap and including a substance-of-interest; and determining respective concentrations of the substance-of-interest in the sample droplets; adjusting the respective concentration of at least one of the sample droplets so that each of the respective concentrations of at least a plurality of the sample droplets is substantially equal to a target concentration, wherein adjusting the respective concentration of a corresponding sample droplet includes; conducting droplet operations within the droplet-operations gap using the electrodes to generate discrete dilution droplets that are formed from a corresponding sample droplet, wherein the dilution droplets and a remainder of the corresponding sample droplet form a droplet set, at least two of the dilution droplets in the droplet set having different concentrations of the sub stance-of-interest; combining a select number of the droplets from the droplet set to form an output droplet having a modified concentration, the select number of the droplets being based on the respective concentration of the corresponding sample droplet and the target concentration. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification