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. 2022 Mar 31;10:846446. doi: 10.3389/fbioe.2022.846446

FIGURE 2.

FIGURE 2

Characterizations of SSPNs. (A) TEM image. Scale bar = 200 nm. (B) The stability of SSPNs in PBS containing 10% FBS in 96 h. (C) XRD spectrums of SPIOs and SSPNs. (D) Magnetization curves of SPIOs and SSPNs.