Plasma surface modification of poly vinyl chloride for improvement of antibacterial properties

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Wei Zhang
  • Junhui Ji
  • Yihe Zhang
  • Xuanyong Liu
  • Ricky K.Y. Fu
  • Peter C.T. Ha
  • Qi Yan

Detail(s)

Original languageEnglish
Pages (from-to)44-51
Journal / PublicationBiomaterials
Volume27
Issue number1
Publication statusPublished - Jan 2006

Abstract

Plasma immersion ion implantation (PIII) was used to modify medical-grade PVC coated by triclosan and bronopol to enhance the antibacterial properties. The surface was first activated by O2 plasma to produce more hydrophilic groups so that triclosan and bronopol could be coated more effectively on the surface. Subsequently, an argon plasma treatment was conducted under optimal conditions to improve the antibacterial properties of the triclosan and bronopol-coated PVC samples. The modified surfaces were characterized by XPS, ATR-FTIR, SEM, and contact angle measurements. The antibacterial properties were evaluated utilizing the method of plate-counting of Staphylococcus aureus (gram positive) and Escherichia coli (gram negative). Our experimental results show that the plasma-modified PVC with bronopol exhibits good antibacterial properties while the favorable bulk properties of PVC are retained. The plasma-modified PVC with triclosan has better antibacterial performance against E. coli than bronopol. The change in the antibacterial effect on the modified PVC with time was also investigated and the antibacterial effect was observed to decrease with time. © 2005 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Antibacterial, Bronopol, Medical poly vinyl chloride, Plasma immersion ion implantation, Triclosan

Citation Format(s)

Plasma surface modification of poly vinyl chloride for improvement of antibacterial properties. / Zhang, Wei; Chu, Paul K.; Ji, Junhui; Zhang, Yihe; Liu, Xuanyong; Fu, Ricky K.Y.; Ha, Peter C.T.; Yan, Qi.

In: Biomaterials, Vol. 27, No. 1, 01.2006, p. 44-51.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal