Modification of polycarbonateurethane surface with poly (ethylene glycol) monoacrylate and phosphorylcholine glyceraldehyde for anti-platelet adhesion

  • Jing Yang
  • Juan Lv
  • Bin Gao
  • Li Zhang
  • Dazhi Yang
  • Changcan Shi
  • Jintang Guo
  • Wenzhong LiEmail author
  • Yakai FengEmail author
Research Article


Poly(ethylene glycol) monoacrylate (PEGMA) is grafted onto polycarbonateurethane (PCU) surface via ultraviolet initiated photopolymerization. The hydroxyl groups of poly(PEGMA) on the surface react with one NCO group of isophorone diisocyanate (IPDI) and another NCO group of IPDI is then hydrolyzed to form amino terminal group, which is further grafted with phosphorylcholine glyceraldehyde to establish a biocompatible hydrophilic structure on the surface. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy confirm the successful grafting of both PEG and phosphorylcholine functional groups on the surface. The decrease of the water contact angle for the modified film is caused by synergic effect of PEG and phosphorylcholine, which both have the high hydrophilicity. Furthermore, the number of platelets adhered is relative low on the synergetically modified PCU film compared with the PCU film modified only by poly(PEGMA). Our synergic modification method using both PEG and phosphorylcholine may be applied in surface modification of blood-contacting biomaterials and some relevant devices.


poly(ethylene glycol) monoacrylate phosphorylcholine polycarbonateurethane surface modification anti-platelet adhesion biomaterials 


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Copyright information

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Jing Yang
    • 1
  • Juan Lv
    • 1
  • Bin Gao
    • 1
  • Li Zhang
    • 1
  • Dazhi Yang
    • 1
  • Changcan Shi
    • 1
  • Jintang Guo
    • 1
    • 2
  • Wenzhong Li
    • 4
    Email author
  • Yakai Feng
    • 1
    • 2
    • 3
    Email author
  1. 1.School of Chemical Engineering and TechnologyTianjin UniversityTianjinChina
  2. 2.Joint Laboratory for Biomaterials and Regenerative MedicineTianjin University-Helmholtz-Zentrum GeesthachtTianjinChina
  3. 3.Key Laboratory of Systems Bioengineering, Ministry of EducationTianjin UniversityTianjinChina
  4. 4.Department of Cardiac Surgery, Reference & Translation Center for Cardiac Stem Cell TherapyUniversity of RostockRostockGermany

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