Novel near infra-red fluorescent pH sensors based on 1-aminoperylene bisimides covalently grafted onto poly(acryloylmorpholine).

Novel pH sensors relying on 1-aminoperylene bisimide dyes covalently grafted onto cross-linked poly(acryloylmorpholine) are presented. They feature fluorescence in the near infra-red range and a large Stokes shift (>90 nm).