CD81 and non-small cell lung carcinoma: Three ExoMPs, CD81, EpCAM, andCD151, were chosen as target biomarkers to capture exosomes, cancerousexosomes, and non-small cell lung cancer (NSCLC)-derived exosomes,respectively.13,14 Polystyrene microspheres (PSMs),which are functionalized with respective antibodies of the aforementionedproteins, were utilized as capturing agents.