Techniques, systems, and devices are described for implementing a droplet array for single-cell analysis. A method of conducting single-cell analysis comprises generating a plurality of droplets, wherein each of the plurality of droplets contains a core material surrounded by a protective shell; loading the plurality of droplets, via a carrying fluid, onto an array including a plurality of trap structures, wherein the plurality of droplets are held by the plurality of trap structures; selecting a target droplet, held by a trap structure, from the plurality of droplets; and releasing the target droplet from the trap structure.
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