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. 2019 Nov 18;14:8989–9006. doi: 10.2147/IJN.S209603

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© 2019 Qin et al.

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Morphology of microspheres.

Notes: BMs under optical microscope (A); FNMs under optical microscope (B); BMs under ESEM (C); FNMs under ESEM (D); FNMs under TEM at a magnification of 8 k (E) and 50 k (F).

Abbreviations: BMs, blank polymer microspheres; FNMs, magnetic polymer microspheres; ESEM, environmental scanning electron microscope; TEM, transmission electron microscopy.