The mesoporous silica nanoparticle of claim 4, wherein the terminal aromatic moiety is derived from a silane source selected from the group consisting of trimethoxyphenylsilane TMPS, triethoxyphenylsilane, diphenyldiethoxysilane, 1 naphthyl trimethoxysilane, 2 hydroxy 4 3 triethoxy silylpropoxy diphenylketone, O 4 methylcoumarinyl N 3 triethoxysilyl propyl carbamate, 7 triethoxysilylpropoxy 5 hydroxyflavone, 3 carbazolylpropyltriethoxysilane, bis 2 diphenylphosphinoethyl methylsilylethyltriethoxysilane and 2 diphenylphosphino ethyl triethoxysilane
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