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. 2020 Apr 21;15:2659–2668. doi: 10.2147/IJN.S243037

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© 2020 Xu et al.

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TEM image (A) and particle sizes (B) of mesoporous silica nanoparticles (×70.0k). The size distribution curve (C) of MSN and Zeta potential (D) of MSN, MSN-NH₂ and MSN-COOH. N2 adsorption−desorption isothermals of MSN-CTAB (E) and MSN (F).

Notes: The X axis labeling of (E) and (F) is “Quantity Absorbed (cm³/g STP)”; the Y axis labeling of (E) and (F) is “relative pressure (P/P_o)”.

Abbreviations: TEM, transmission electron microscopy; MSN, mesoporous silica nanoparticle; CTAB, cetyltrimethylammonium bromide.