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Indicative TEM images: (a,b) particle size and morphology of the MSiCa50 nanoparticles; (c) identification of the hexagonal mesoporous channels in the MSiCa50 nanoparticles (NPs); (d,e) particle size and morphology of the MAk nanoparticles; (f) identification of hexagonal mesoporous structure in MAk NPs; (g,h) particle size and morphology of the MAkSr6 nanoparticles; (i) identification of hexagonal mesoporous structure in MAkSr6 NPs.
