Figure 1.
Immobilization of BAL-ODNs to SC-glass. BAL-ODN is spotted on an SC-glass slide in an acidic buffer and incubated at 37°C for 3 h in a humid chamber. During blocking excess BAL-ODN is removed and unreacted semicarbazide residues are blocked with negatively charged groups. The blocking step prevents spots from smearing and reduces background during hybridization.