Redox- and pH-Responsive Polymersomes with Ferrocene Moieties Exhibiting Peroxidase-like, Chemoenzymatic Activity and H<sub>2</sub>O<sub>2</sub>-Responsive Release Behavior

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Silvia Moreno - , Leibniz Institute of Polymer Research Dresden (Author)
  • Hanna Huebner - , Saarland University (Author)
  • Christiane Effenberg - , Leibniz Institute of Polymer Research Dresden (Author)
  • Susanne Boye - , Leibniz Institute of Polymer Research Dresden (Author)
  • Anthony Ramuglia - , Chair of Electrochemistry, TUD Dresden University of Technology (Author)
  • Deborah Schmitt - , Saarland University (Author)
  • Brigitte Voit - , Chair of Organic Chemistry of Polymers, Leibniz Institute of Polymer Research Dresden, TUD Dresden University of Technology (Author)
  • Inez M. Weidinger - , Chair of Electrochemistry, TUD Dresden University of Technology (Author)
  • Markus Gallei - , Saarland University (Author)
  • Dietmar Appelhans - , Leibniz Institute of Polymer Research Dresden (Author)

Abstract

The development of compartments for the design of cascade reactions in a local space requires a selective spatiotemporal control. The combination of enzyme-loaded polymersomes with enzymelike units shows a great potential in further refining the diffusion barrier and the type of reactions in nanoreactors. Herein, pH-responsive and ferrocene-containing block copolymers were synthesized to realize pH-stable and multiresponsive polymersomes. Permeable membrane, peroxidaselike behavior induced by the redox-responsive ferrocene moieties and release properties were validated using cyclovoltammetry, dye TMB assay, and rupture of host-guest interactions with beta-cyclodextrin, respectively. Due to the incorporation of different block copolymers, the membrane permeability of glucose oxidase-loaded polymersomes was changed by increasing extracellular glucose concentration and in TMB assay, allowing for the chemoenzymatic cascade reaction. This study presents a potent synthetic, multiresponsive nanoreactor platform with tunable (e.g., redox-responsive) membrane properties for potential application in therapeutics.

Details

Original languageEnglish
Pages (from-to)4655-4667
Number of pages13
JournalBiomacromolecules
Volume23
Issue number11
Publication statusPublished - 14 Nov 2022
Peer-reviewedYes

External IDs

PubMed 36215725
Scopus 85141933696
ORCID /0000-0002-4531-691X/work/148608043

Keywords

Keywords

  • Block-copolymers, Drug-delivery, Fenton reaction, Ferric ions, Nanocarriers, Nanoreactors, Oxidation, Membrane, Nanocontainers, Polymerization