Functionalization of polymer microspheres using click chemistry

Dana R. Breed, Raymond Thibault, Fang Xie, Qian Wang, Craig J. Hawker, David J. Pine

Research output: Contribution to journalArticlepeer-review


We describe a new method to covalently link a wide variety of molecules to the surface of colloidal polymer microspheres using the Cu(I)-catalyzed azide-alkyne reaction, most commonly known under the class of reactions identified by the term click chemistry. The method is generic and readily applied to a spectrum of colloidal particle systems allowing surfaces to be tailored with virtually any desired functionality. To demonstrate this method, polystyrene microspheres were functionalized with two different polyethylene oxide-based polymers, and changes in hydrodynamic radii after functionalization were measured using dynamic light scattering. Control of surface functional groups was demonstrated by fluorescently labeling the colloidal microspheres using the same Cu-catalyzed azide-alkyne cycloaddition reaction.

Original languageEnglish (US)
Pages (from-to)4370-4376
Number of pages7
Issue number8
StatePublished - Apr 21 2009

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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