Controlling the sign of Excimer‐Origin Circularly Polarised Luminescence by Balancing Hydrophilicity/Hydrophobicity in Bipyrenyl Arginine Peptides

Abstract

In this paper, the circularly polarised luminescence (CPL) properties of peptides with pyrene in water is described. To consider new ways to control CPL in water, we synthesized a chiral LL-oligopeptide luminophores with two fluorescent pyrenyl and some hydrophilic arginine units. CPL from a transparent pyrenyl excimer was shown at 480 to 510 nm in water. Their CPL signs can be adjusted by changing the number and position of arginine units at the ends of the chiral peptide backbone. More information can be found in the Communication by Mizuki Kitamatsu, Yoshitane Imai et al.