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. 2021 Jun 10;14(12):3212. doi: 10.3390/ma14123212

Figure 3.

Figure 3

FTIR spectra showing (black curve, top) silane coupling agent (γ-MPS), (red curve, middle) zirconia nanoparticles after treatment with silane (γ-MPS) and (blue curve, bottom) zirconia nanoparticles without silane.