Development of an immunoblot assay for carcinoembryonic antigen (CEA) in human serum using a portable UV illuminator

A rapid quantum dot (QD) based immunoblot assay is developed to detect CEA in human serum using a portable UV illuminator. Here, photostable QD-conjugated antibodies were utilized that bind CEA in human serum, previously blotted on a nitrocellulose membrane for point-of-care applications.