Catalyst-mediated yet catalyst-free hydrogels formed by interfacial chemical activation

Chem Commun (Camb). 2014 Mar 18;50(22):2869-72. doi: 10.1039/c3cc49043b. Epub 2014 Jan 28.

Abstract

We introduce an entirely new method for forming hydrogels, wherein the formation is triggered by a catalyst, but the resulting hydrogels are catalyst-free. We unexpectedly found that a sufficient amount of crosslinkable catecholquinone/semiquinone free radicals is generated by the physical contact between catechol-containing polymers and surface-immobilized catalysts.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Catalysis
  • Catechols / chemistry*
  • Cell Survival / drug effects
  • Chitosan / chemistry*
  • Free Radicals / chemistry
  • Hemin / chemistry*
  • Hydrogels / chemical synthesis*
  • Hydrogels / pharmacology
  • Mice
  • NIH 3T3 Cells
  • Polyethylene Glycols / chemistry
  • Quinones / chemistry

Substances

  • Catechols
  • Free Radicals
  • Hydrogels
  • Quinones
  • Polyethylene Glycols
  • Hemin
  • Chitosan
  • catechol