Detection of Hepatoma Serum Marker CD105 with Hemin/Graphene/Aptamer Nanoprobes

CD105 is a serum marker of hepatoma. In this study, we established a stable detection platform constructed using a hemin-graphene-aptamer complex (HGN-apt) by optimizing the ratio of graphene, hemin, and aptamer. We also optimized CD105 detection conditions. The detection limit of this platform is 5.5 ng/mL, enabling sensitive detection of CD105. These experiments facilitate an innovative approach for the construction of a detection platform with high sensitivity and an expanded detection range using an HGN-apt probe, enabling specific detection of the serum hepatoma marker CD105. Our findings provide an important foundation for early diagnosis of hepatomas, and would therefore help to alleviate patient suffering, including mental and economic burdens. Our platform also offers a quantitative indicator for the prognosis of hepatomas.