A study on the Concentration-dependent Relaxometric Transition in Manganese Oxide Nanocolloid as MRI Contrast Agent

摘要

A green precipitation method has been used for the synthesis of ultra-small APTMS-mPEG conjugated Mn3O4 nanoparticles. Spherical cores in the uniform size of 4±1 nm were charac- terized by HRTEM. Zeta potential of -45 mV and the invariant turbidimetry results during the time, confirmed super-stability of the colloids.