PD-L1 targeted iron oxide SERS bioprobe for accurately detecting circulating tumor cells and delineating tumor boundary

Ting Pan, Dinghu Zhang, Guomei You, Xiaoxia Wu, Chenguang Zhang, Xinyu Miao, Wenzhi Ren, Yiwei He, Lulu He, Yuanchuan Gong, Jie Lin, Aiguo Wu, Guoliang Shao