Short polypeptides with four pentad repeats, (VPGVG)(4) and (VPAVG)(4), were synthesised by manual fluorenylmethoxycarbonyl/tert-butyl (Fmoc/t-Bu) solid phase peptide synthesis using a convergent approach. In the next step, the peptides were coupled via their N-terminus with activated semi-telechelic poly(ethylene glycol) O-(N-Fmoc-2-aminoethyl)-O'-(2-carboxyethyl)undeca(ethylene glycol) (Fmoc-PEG-COOH) to yield monodisperse Fmoc-PEG-peptide diblock copolymer. Both the presence of the terminal hydrophobic Fmoc group and the hydrophilic PEG chain in the copolymers were shown to play a crucial role in their self-associative behaviour, leading to reversible formation of supramolecular thermoresponsive assemblies. The peptides and their PEG derivatives were characterised by HPLC, NMR and MALDI-TOF MS. The associative behaviour of the peptides and their PEG derivatives was studied by dynamic light scattering, MAS NMR and phase contrast microscopy. [image: see text].

• MeSH
• elastin chemie   MeSH
• financování organizované MeSH
• konformace proteinů MeSH
• magnetická rezonanční spektroskopie MeSH
• mikroskopie fázově kontrastní MeSH
• molekulární modely MeSH
• oligopeptidy chemická syntéza   chemie   MeSH
• peptidy chemie   MeSH
• polyethylenglykoly chemie   MeSH
• radiační rozptyl MeSH
• sekvence aminokyselin MeSH
• spektrometrie hmotnostní - ionizace laserem za účasti matrice MeSH
• termodynamika MeSH
• vysokoúčinná kapalinová chromatografie MeSH