Fig. 1. Characterization of anti-PD-1 nanoMIP. (A) The amount of the PD-1 epitope captured by anti-PD-1 nanoMIP and nanoNIP prepared with different ratios of the monomers; (B) TEM images for the imprinted nanoparticle with the optimal monomer ratio; (C) STEM Mapping for the imprinted nanoparticle with the optimal monomer ratio (Si: left upper; O: right upper; N: left down; Merge: right down); (D) XPS spectrum for the imprinted nanoparticles with the optimal monomer ratio. Error bars represent three parallel experiments.
