Self-assembly and drug release study of linear l,d-oligopeptide-poly(ethylene glycol) conjugates.

•Synthesis of pegylated regular alternating l,d tetra and hexapeptide is reported.•Structures of pegylated regular alternating l,d tetra and hexapeptide is reported.•The self-assembling capability was assessed by DLS, SEM, CD, fluorescence, NMR.•The self-assembling properties depend significantly on the length of the peptide.•The drug loading end release capacity of the model drug curcumin was investigated.