Figure 4

(a) TGA curves show the percentage of total weight loss of Arg@IONPs, and PEG-Arg@IONPs, (b) DSC thermograms of Bare IONPs, Arg@IONPs, and PEG-Arg@IONPs, (c) VSM curves of Bare IONPs, Arg@IONPs, and PEG-Arg@IONPs, (d) ζ-potential of Bare IONPs, Arg@IONPs, and PEG-Arg@IONPs.