Fabrication and characterization of antimicrobial surface-modified stainless steel for bio-application

Kang Kyun Wang, Bong Jin Kim, Il-Heo, Seong Jin Jung, Jeong Wook Hwang, Yong Rok Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report a photofunctional stainless steel (PSS) that has antimicrobial property which is provided by reactive oxygen species (ROS) generated from the photosensitizer (PS). For the fabrication of the photofunctional stainless steel, the photosensitizer of hematoporphyrin (HP) was covalently bonded to the surface of 316L stainless steel (316LSS) through an esterification reaction. The PSS plate was investigated by x-ray photoelectron spectroscopy (XPS), reflectance UV–Vis absorption, and fluorescence spectroscopy. ROS generation from the PSS plate was studied by using the decomposition reaction of 1,3-diphenyl-isobenzofuran (DPBF). The results suggest that the immobilized photosensitizer molecules on the surface of the PSS plate still possess their intrinsic optical and functional properties including the ROS generation. The antimicrobial property of the PSS plate was successfully demonstrated with the decomposition of biofilm and the suppression of the biofilm formation on the surface of the PSS plate.

Original languageEnglish
Pages (from-to)256-262
Number of pages7
JournalSurface and Coatings Technology
Volume310
DOIs
Publication statusPublished - 2017 Jan 25

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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