Antimicrobial properties and corrosion behavior of TiO2-NTs electrodes modified with Ag and ZnO nanorod in simulated body fluid solution

Aydin E. B., SIĞIRCIK G., Takci H. A. M.

JOURNAL OF MOLECULAR STRUCTURE, cilt.1240, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1240
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.molstruc.2021.130569
  • Dergi Adı: JOURNAL OF MOLECULAR STRUCTURE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, INSPEC
  • Anahtar Kelimeler: TiO2-NTs, Ag, ZnO nanorods, Corrosion, Antimicrobial activity, ELECTROCHEMICAL-BEHAVIOR, NANOTUBE ARRAYS, ANTIBACTERIAL, TITANIUM, FABRICATION, COATINGS, FILMS, BIOACTIVITY, CAPACITANCE, MORPHOLOGY
  • Çukurova Üniversitesi Adresli: Evet

Özet

The synthesis of Ag nanoparticles (NPs) on titanium dioxide nanotubes (TiO2-NTs) was synthesized via chemical reduction technique. In addition, ZnO nanorods were deposited on TiO2-NTs via hydrothermal method. First of all, TiO2-NTs were produced by the two-step anodization method. The antibacterial/antifungal activity of the prepared materials was investigated in biological applications. Moreover, Ti-based nanostructures have been extensively used as an implant material. For this purpose, the corrosion behavior of the fabricated materials was examined in the simulated body fluid (SBF) solution by electrochemical techniques. Morphological and structural analysis of the materials was studied with field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) method. FE-SEM images showed that well-ordered top-open TiO2 nanotubes with pore diameter of around 85.29 +/- 6.09 nm and tube length of about 20.49 +/- 0.33 mu m were formed. Furthermore, micro hardness and contact angle tests were performed. From electrochemical impedance spectroscopy (EIS) results, the highest resistance value of ZnO-TiO2-NTs at exposure of 7th days showed that ZnO nanorods provide an important protection against corrosion by blocking the tube channels of TiO2-NTs. Furthermore, ZnO-TiO2-NTs showed antifungal activity, while Ag-TiO2-NTs exhibited antibacterial activity. (C) 2021 Elsevier B.V. All rights reserved.