For example, magnetosome nanoparticles functionalized with EGFR/HER2 targeting peptide could be used to detect breast cancer.[134] Magnetosome modified with anti‐EGFR produced higher signal‐to‐noise ratio than HSA‐coated (HAS: human serum albumin) iron oxide nanoparticles modified with anti‐EGFR.[135] Likewise, magnetosomes decorated with RGD peptide could specifically target glioblastoma U87 cells.[136]. Here, EGFR is linked to breast cancer.