Patent ID: 8663511

Claim:
A method, comprising: applying a force to a combined stream to produce a plurality of capsules, wherein the combined stream comprises an inner stream comprising a core solution intermixed with a plurality of materials, and an outer stream comprising a shell solution, wherein at least a portion of the plurality of capsules are desirable capsules, each comprising a core encapsulated by a portion of the shell solution, wherein the core comprises at least one of the plurality of materials encapsulated by a portion of the core solution, and wherein the at least one material in the core does not protrude an outer surface of the portion of the shell solution; detecting undesirable capsules with a sensing device and using image recognition; applying a bias charge only to the detected undesirable capsules via a charging device responsive to detecting the undesirable capsules; and segregating the biased undesirable capsules from the unbiased desirable capsules with a selection device.