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Water-in-Water Pickering Emulsion Stabilized by Polydopamine Particles and Cross-Linking.

Jianrui ZhangJongkook HwangMarkus AntoniettiBernhard V K J Schmidt
Published in: Biomacromolecules (2018)
All aqueous multiphase systems have attracted significant attention recently, in particular water-in-water Pickering emulsions. In here, polydopamine nanoparticles (PDP) are investigated as stabilizers for dextran and poly(ethylene glycol) (PEG)-based aqueous emulsions. Remarkably, stable emulsions are obtained from the all-biocompatible materials that can be broken either via dilution or surfactant addition. Further cross-linking of PDP via poly(acrylic acid) and carbodiimide strengthens the stability of emulsion droplets in a colloidosome-like structure. After cross-linking, demulsification via dilution or surfactant addition was largely hindered. The PDP-mediated formation of all aqueous emulsions is expected to be generalized to different types of water-in-water emulsions with other polymers and offers new opportunities in surface modification as well as microencapsulation.
Keyphrases
  • ionic liquid
  • drug delivery
  • liquid chromatography tandem mass spectrometry
  • liquid chromatography
  • mass spectrometry
  • ms ms
  • tandem mass spectrometry
  • solid phase extraction