Innovations in exosome separation, such as the application of ADSP array technology to hepatocellular carcinoma (HCC), have streamlined the isolation of pure exosomal samples, unveiled biomarkers such as OLFM4, HDGF, and GDF15, and demonstrated the method's efficiency and potential for high-throughput diagnostic applications [129]. Here, OLFM4 is linked to hepatocellular carcinoma.