| 摘要 |
A composition including the reaction product of: an organic silane of Formula SiR1mX14-m; a fluorescent dye-silane compound of Formula D-L′-(CH2)n—SiX23; water; and a hydrolysis catalyst; where R1 is a C1-C6 alkyl that is unsubstituted or substituted with one or more halogens or hydroxyl group, C2-C6 alkenyl that is unsubstituted or substituted with one or more halogens or hydroxyl group, or an aryl group that is unsubstituted or substituted with one or more halogens or hydroxyl group, m is 0 or 1; n is 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12, D is a radical having a fluorophore; L1 is a bond, O, S, C(O)O, C(O)NR2, SO2O, C(O)S, C(S), or S2; R2 is hydrogen, a C1-C12 alkyl that is unsubstituted or is substituted with hydroxyl; each X1 and X2 are independently a hydrolyzable substituent; and the reaction product is a silica-based fluorescent nanoparticle.
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