Fig. 1From: Molecular imaging of HER2 expression in breast cancer patients using a novel peptide-based tracer 99mTc-HP-Ark2: a pilot studyChemical structure, stability and binding affinity. A Structure of 99mTc-HP-Ark2. B In vitro stability and in vivo metabolic stability of 99mTc-HP-Ark2. C Surface plasmon resonance results of H10F (70.2 nM), rk (52.3 nM) and Ark2 (9.7 nM) toward HER2Back to article page