Biopolymer synthesis on polypropylene supports: oligonucleotide arrays.

High-density oligonucleotide arrays have been constructed on clear, aminated polypropylene film using conventional phosphoramidite-based synthesis chemistries. A semiautomated 64-channel fluidic chemical delivery system is used to prepare the 64 x 64 array containing 4096 oligonucleotide elements. The completed array has been successfully used in the hybridization and fluorescence (Streptavidin-FITC) detection of a biotinylated 18-mer oligonucleotide target complementary to the F508 codon region of the cystic fibrosis transmembrane conductance regulator gene. A hybridization simulation model based upon Nearest Neighbor approximations is used to predict the outcome of the array hybridization experiment.