Multifunctional silane polymers for persistent surface derivatization and their antimicrobial properties

Varun Sambhy, Blake R. Peterson, Ayusman Sen

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


We demonstrate a versatile methodology combining both covalent surface anchoring and polymer cross-linking that is capable of forming long-lasting coatings on reactive and nonreactive surfaces. Polymers containing reactive methoxysilane groups form strong Si - O - Si links to oxide surfaces, thereby anchoring the polymer chains at multiple points. The interchain cross-linking of the methoxysilane groups provides additional durability to the coating and makes the coatings highly resistant to solvents. By tailoring the chemical structure of the polymer, we were able to control the surface energy (wetting) of a variety of surfaces over a wide range of water contact angles of 30-140°. In addition, we synthesized covalently linked layer-by-layer polymeric assemblies from diese novel metfioxysilane polymers. Finally, antibacterial agents, such as silver bromide nanoparticles and triiodide ions, were introduced into these functional polymers to generate long-lasting and renewable antiseptic coatings on glass, metals, and textiles.

Original languageEnglish (US)
Pages (from-to)7549-7558
Number of pages10
Issue number14
StatePublished - Jul 15 2008

All Science Journal Classification (ASJC) codes

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


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