Gallium-68 Labeled Iron Oxide Nanoparticles Coated with 2,3-Dicarboxypropane-1,1-diphosphonic Acid as a Potential PET/MR Imaging Agent: A Proof-of-Concept Study

Table 1

Stability analysis of Fe₃O₄-DPD MNPs, variation in PDI and zeta potential against time.

Time (months)	1	2	3	4	5	6
PDI	0.255	0.241	0.267	0.287	0.263	0.271
Zeta potential (mV)	−49.8	−50.1	−48.6	−49.2	−50.3	−50.4