Patent ID: 8293271

Claim:
An apparatus, comprising: an outer nozzle operable to discharge at an egress of the outer nozzle an outer stream at a first flow rate, the outer stream comprising a shell solution; and an inner nozzle placed within the outer nozzle, wherein the inner nozzle is operable to discharge at an egress of the inner nozzle an inner stream at a second flow rate, the inner stream comprising a core solution intermixed with a plurality of materials, wherein the outer stream substantially surrounds the inner stream, thereby forming a combined stream, wherein a plurality of capsules are formed responsive to a force applied to the combined stream, 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, and wherein the core comprises at least one of the plurality of materials encapsulated by a portion of the core solution, a sensing device to detect undesirable capsules using image recognition; a charging device coupled to the sensing device, wherein the charging device recieves a signal from the sensing device responsive to the sensing device detecting the undesirable capsules, and wherein the charging device applies a bias only to the detected undesirable capsules responsive to receiving the signal from the sensing device; and a selection device to segregate the biased undesirable capsules from the unbiased desirable capsules.