[[10]] developed the novel methods for the identification of Ser/Thr phosphatases, especially small C-terminal domain phosphatase 1 (Scp1), using the peptide-displayed phage library with AlF SB 4 sb SP - sp /BeF SB 3 sb SP - sp which they termed as "phosphorylation mimic phage display (PMPD) method". [[6]] developed a chromophore-based solid phase peptide reaction assay in vitro, using peptides immobilized on magnetic beads (C-SPRA-MB). The Aib peptide-pyrene exhibited excimer CPL (circularly polarized luminescence) in organic solvent upon increasing the number of pyrene units. Peptides have been gaining increasing attention for their applications in various fields, such as medical, biotechnological, and nanotechnological fields.