In addition tocell membrane coating techniques, several endogenousproteins with biomimetic attributes can also be used as efficientcarriers for drug delivery (Figure 3), leveraging their inherent nonimmunogenic and nontoxicproperties.198 Therefore, Zhao et al. developed an albumin-based carrier that could targetoverexpressed proteins in the tumor cells per se andfurther functionalized with TfR-T12 peptide to enhance BBB penetrationand tumor cell uptake. Here, TFRC is linked to neoplasm.