Characterization and antibacterial efficacy of silver-coated Ca-Na-Zn-Si/Ti glasses


Wren A., Akgun B., Adams B., Coughlan A., Mellott N., Towler M.

JOURNAL OF BIOMATERIALS APPLICATIONS, cilt.27, ss.433-443, 2012 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 27 Konu: 4
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1177/0885328211411000
  • Dergi Adı: JOURNAL OF BIOMATERIALS APPLICATIONS
  • Sayfa Sayıları: ss.433-443

Özet

A glass series [xSiO(2[-y])center dot 0.36ZnO center dot 0.17Na(2)O center dot 0.05CaO (starting at x = 0.50, y = 0.08 TiO2)] was formulated with TiO2 substituting SiO2. Each glass/silver-coated glass was characterized using X-ray diffraction, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. Surface area analysis revealed significant changes after silver coating, 0.43-0.95 m(2)/g (control), to 0.53-1.85 m(2)/g (AU-1), and 0.20-1.11 m(2)/g (AU-2). Ion release from uncoated glasses included sodium (0.08 mg/L), calcium (0.07 mg/L), and zinc (0.008 mg/L), where silver-coated glasses presented 0.42 mg/L (silver), 0.33 mg/L (sodium), 0.02 mg/L (calcium), and 0.01 mg/L (zinc). Ag-coated glasses presented inhibition zones of 7.75 mm (control) compared to 1.04 mm (AU-2).