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Nonfouling polyampholytes from an ion-pair comonomer with biomimetic adhesive groups

  • Guozhu Li
  • , Hong Xue
  • , Changlu Gao
  • , Fengbao Zhang
  • , Shaoyi Jiang*
  • *Corresponding author for this work
  • University of Washington
  • Tianjin University

Research output: Contribution to journalArticlepeer-review

Abstract

Two adhesive polyampholytes were synthesized by the polymerization of an ion-pair comonomer using two types of catecholic initiators. The molecular weight and polydispersity index (PDI) of the polyampholytes were determined by using an aqueous gel permeation chromatography (GPC). The film thickness of the polymers attached on surfaces was measured by an ellipsometer. Attenuated total reflectance Fourier transform infrared (ATR-FTIR) was used to monitor functional groups on the surface qualitatively. Electron spectroscopy for chemical analysis (ESCA) was employed to determine the surface composition quantitatively. The protein-resistant properties were determined by measuring protein adsorption from fibrinogen (Fg), lysozyme (Lyz), and bovine serum albumin (BSA) using a surface plasmon resonance (SPR) sensor. These neutral charged surfaces give excellent nonfouling properties from protein solutions of Fg, Lyz, and BSA.

Original languageEnglish
Pages (from-to)14-16
Number of pages3
JournalMacromolecules
Volume43
Issue number1
DOIs
StatePublished - 12 Jan 2010
Externally publishedYes

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