Application of SERS Technology in Clinical Diagnosis and Prognosis of Lung Cancer Immunotherapy

The aim of this study is to explore the application of surface-enhanced Raman scattering (SERS) system in the diagnosis of benign and malignant lung cancer biopsy, and to promote the rapid diagnosis of lung cancer. In addition, the correlation between tumor PH value, PD-L1 expression detected by fluorescent probes and the efficacy and prognosis of immunotherapy was explored. Based on this, the immunotherapy efficacy and prognosis prediction models based on patients' clinical information, PD-L1 expression by immunohistochemistry, PD-L1 expression by fluorescent probes and PH value detected by SERS were constructed to promote the precision of tumor immunotherapy.