Fig. 3From: Aptamer-modified Magnetic Nanosensitizer for in vivo MR imaging of HER2-expressing CancerThe characterization of WMNCs and AptHER2-MNS for using as in vivo MRI contrast agent. a hydrodynamic diameter (n = 5, WMNCs 28.8 ± 7.2 nm, AptHER2-MNS 34.1 ± 8.2 nm). b Relaxivity analysis graph (n = 3, WMNCs R2 = 265.7 mM−1 s−1, R2 = 0.99 and AptHER2-MNS R2 = 257.2 mM−1 s−1, R2 = 0.99)Back to article page