Table 2. Change in Fluorescence Intensity from 2 to 24 h Hybridizations for the Three Silanes and for the 20, 25, and 30 nt Probes.

Substrate	30mer (%)	25mer (%)	20mer (%)
monopodal monohydroxyl	–83	–82	–82
dipodal dihydroxyl	–31	–23	–25
dipodal monohydroxyl	–5	–23	–60