Dendritic Elastin-like peptides: The effect of branching on thermoresponsiveness

Yotam Navon, Mingjun Zhou, John B. Matson, Ronit Bitton

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Elastin-like peptides (ELPs) have been used widely to confer thermoresponsive characteristics onto various materials, but to this point mostly linear ELPs have been studied. A class of linear and dendritic (branched) ELPs based on the GLPGL pentamer repeat unit was synthesized using an on-resin divergent strategy. The effect of peptide topology on the transition temperature (Tt) was examined using circular dichroism to study the peptide secondary structure transition and turbidity to measure the macroscopic phase transition (coacervation). Secondary structure transitions showed no dependence on topology, but a higher Tt was observed for dendritic peptides than for linear peptides with the same number of GLPGL repeats. The data support a phase transition model that consists of two neighboring processes: a secondary structure transition, related to intramolecular interactions, followed by coacervation, associated with intermolecular interactions.

Original languageEnglish
Pages (from-to)262-270
Number of pages9
JournalBiomacromolecules
Volume17
Issue number1
DOIs
StatePublished - 11 Jan 2016

ASJC Scopus subject areas

  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Dendritic Elastin-like peptides: The effect of branching on thermoresponsiveness'. Together they form a unique fingerprint.

Cite this