Topics in Current Chemistry (2020) 378:40
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if the homogeneity of pH within the solution is improved by adding urea to the
reaction mixture. There are also reports suggesting that particle size decreases
with increasing pH [17]. A similar trend is observed between particle stability
and iron concentration, but substantial studies are lacking to support this observation [23]. Particles with different morphologies, such as nanodots, ellipsoid,
Fig. 1 Methods used in the synthesis of iron oxide nanoparticles (IONPs)
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Reprinted from the journal