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Immobilization yield (%) of 1018K6 on PP surfaces determined by RP-HPLC chromatography on a C18 column after the coupling reaction. PP surfaces pre-activated by plasma treatment, were incubated with a water solution of 1018K6 (100 μM). After the coupling reactions, the supernatants were recovered and analysed by RP-HPLC. The peptide solution (100 μM) at time 0 (t = 0) was used as control. The reported chromatograms are representative of three independent experiments.
