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. 2021 May 18;16:3457–3472. doi: 10.2147/IJN.S306269

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© 2021 Zhang et al.

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(A) FTIR spectrum of MSN and MSN(Mn); (B) XPS spectrum of MSN for Si 2p, O 1s, and Mn 2p; (C) BJH pore size distributions of MSN and MSN(Mn); (D) N₂ adsorption and desorption isotherms of MSN and MSN(Mn).