Figure 1

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Simulated NPs. HSNP: hydroxylated silica nanoparticle; FSNP25: nanoparticle covered by 25% –CF3 groups; FSNP55: nanoparticle covered by 55% –CF3 groups; FSNP75: nanoparticle covered by 75% –CF3 groups; FFSNP25: nanoparticle covered by 25% –CF2CF3 groups; FFSNP55: nanoparticle covered by 55% –CF2CF3 groups; FFSNP75: nanoparticle covered by 75% –CF2CF3 groups. Atom colors: Silicon, yellow; Oxygen, red; Hydrogen, white; Carbon, gray; Fluorine, cyan.