AbbVie Inc.
SYSTEMS AND METHODS FOR IDENTIFYING PROTEIN AGGREGATES IN BIOTHERAPEUTICS

Abstract:

Systems and methods for inspecting particles in a liquid beneficial agent are provided. Inspecting particles in a liquid beneficial agent includes selectively illuminating at least a portion of a liquid beneficial agent contained within a container using an excitation beam configured to excite photoluminescent particles in the liquid beneficial agent to emit an emission light and produce scattered excitation light, filtering the illuminated portion of the liquid beneficial agent to transmit the emission light and block the scattered excitation light, obtaining an image of the filtered emission light, analyzing image data representing the image of the filtered emission light to detect regions of the image representing the intrinsic photoluminescence of the photoluminescent particles, measuring an intensity of the regions of the image representing the intrinsic photoluminescence of the photoluminescent particles, and determining a size or number of the photoluminescent particles from the measured intensity of the regions.