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. 2019 Jul 29;14:5875–5894. doi: 10.2147/IJN.S212184

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© 2019 Li et al.

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(A) HPLC analysis of MAL-PEG-PLGA-F3 after modification. (B) HPLC analysis of MAL-PEG-PLGA-F3 after purification. (C) Optical microscopy image of F3-PLGA@MB/Gd NPs, scale bar: 20 μm. (D) SEM image of F3-PLGA@MB/Gd NPs, scale bar: 1 μm. (E) TEM image of F3-PLGA@MB/Gd NPs, scale bar:200 nm. (F) CLSM image of Dil-F3-PLGA@MB/Gd NPs, scale bar: 10 μm. (G) Size distribution of F3-PLGA@MB/Gd NPs. (H) Zeta potential of F3-PLGA@MB/Gd NPs (n=3).

Abbreviations: HPLC, high performance liquid chromatography; MAL, maleimide; PEG, polyethylene glycol; PLGA, poly(lactide-co-glycolic acid); NPs, nanoparticles; SEM, scanning electron microscope; TEM, transmission electron microscope; CLSM, confocal laser scanning microscope.