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. Author manuscript; available in PMC: 2021 Sep 15.
Published in final edited form as: Chem Eng J. 2020 Apr 28;396:125239. doi: 10.1016/j.cej.2020.125239

Fig. 1.

Fig. 1.

(a) Transmission electron microscopy (TEM) image of OA-capped MnFe2O4 NPs. (b) UV-vis spectrum of OVA-PEG-MnFe2O4 NPs and R837-OVA-PEG-MnFe2O4 NPs (the circle refers to R837 characteristic peaks). (c) FTIR spectrum of OA-capped MnFe2O4 NPs, PEG-MnFe2O4 NPs, and OVA-PEG-MnFe2O4 NPs, respectively. (d) TGA of PEG-MnFe2O4 NPs and OVA-PEG-MnFe2O4 NPs. (e) Zeta potential of PEG-MnFe2O4 NPs, OVA-PEG-MnFe2O4 NPs, and R837-OVA-PEG-MnFe2O4 NPs, respectively. (f) Temperature of water and R837-OVA-PEG-MnFe2O4 NPs dispersed in water at different concentrations under irradiation with an 805 nm laser (1.2 W/cm2).