Competitive Adsorption on Nanomaterials for Human Papillomavirus 16 L1 Protein Sensitive Detection

Human papillomavirus (HPV) L1 protein is a biomarker of HPV infection. The identification of HPV L1 protein provides valuable information regarding the viral infection status, reflect the status of HPV virus replication in cervical cells, and help understand cervical lesions Fade and progress. Graphene oxide is an important nanomaterial. Owing to the optical properties of graphene oxide (GO) itself and the interaction between GO and HPV16 L1 nucleic acid aptamer, we established a method for quantitative detection of HPV16 L1 protein by UV absorption spectrophotometry. The recovery rate of the method is 87%–102%, and the limit of detection is 2 pg/mL. We analyzed the HPV16 L1 protein quantitatively in clinical samples by adopting this method. The current method is simple and has promising reliability and profound sensitivity.