array technology peptide array MI:0081 PSI-MI The peptide synthesis methods offer numerous opportunities to synthesise and subsequently screen large arrays of synthetic peptides on planar cellulose supports. Discrete spots are arranged as arrays on membrane sheets where each spot is individually accessed by manual or automated delivery of the appropriate reagent solutions. Over the past few years protein-protein recognition, peptide-metal ion interactions, peptide-nucleic acid binding, enzymatic modification of peptides experiments, have been explored using synthetic peptide arrays on planar support.