EGFR and neoplasm: Active targeting of tumor cells is commonly realized by functionalization of nanoparticle surface with specific antibodies or ligands, e.g., hyaluronic acid (HA), a ligand of tumor-associated receptor CD44; folic acid, a ligand of folate receptor; transferrin, a ligand of transferrin receptor; RGD peptide, a ligand of integrins, or antibodies inhibiting epidermal growth factor receptor (EGFR), also known as HER1 (human epidermal receptor 1) [reviewed in Hong et al. (2023)].