EIF3D and cancer: Selective and sensitive detection of eIF3d(eukaryotictranslation initiation factor 3 complex, subunit D), a protein biomarker,is of fundamental significance for the diagnosis of various cancers.Here, we report an electrochemical sensor based on MXene and asparticacid-functionalized fullerenol (F-Asp) for the biosensing of eIF3d.