Search Results

You are looking at 1 - 4 of 4 items for :

  • Staphylococcus epidermidis x
  • Materials Sciences x
Clear All
Open access

A. Roguska, A. Belcarz, P. Suchecki, M. Andrzejczuk and M. Lewandowska

Abstract

Problem of post-operative infections of implant materials caused by bacterial adhesion to their surfaces is very serious. Enhancement of antibacterial properties is potentially beneficial for biomaterials value. Therefore, the metallic and metallic oxide nanoparticles attract particular attention as antimicrobial factors. The aim of this work was to create nanotubular (NT) oxide layers on Ti with the addition of ZnO nanoparticles, designed for antibacterial biomedical coatings. Antimicrobial activities of titanium, TiO2 NT and ZnO/TiO2 NT surfaces were evaluated against bacterial strain typical for orthopaedic infections: S. epidermidis. TiO2 NT alone killed the free bacterial cells significantly but promoted their adhesion to the surfaces. The presence of moderate amount of ZnO nanoparticles significantly reduced the S. epidermidis cells adhesion and viability of bacterial cells in contact with modified surfaces. However, higher amount of loaded nanoZnO showed the reduced antimicrobial properties than the medium amount, suggesting the overdose effect.

Open access

A. Roguska, A. Belcarz, P. Suchecki, M. Andrzejczuk and M. Lewandowska

Problem of Post-operative infections of implant materials caused by bacterial adhesion to their surfaces is very serious. Enhancement of antibacterial properties is potentially beneficial for biomaterials value. Therefore, the metallic and metallic oxide nanoparticles attract particular attention as antimicrobial factors. The aim of this work was to create nanotubular (NT) oxide layers on Ti with the addition of ZnO nanoparticles, designed for antibacterial biomedical coatings. Antimicrobial activities of titanium, TiO2 NT and ZnO/TiO2 NT surfaces were evaluated against bacterial strain typical for orthopaedic infections: S. epidermidis. TiO2 NT alone killed the free bacterial cells significantly but promoted their adhesion to the surfaces. The presence of moderate amount of ZnO nanoparticles significantly reduced the S. epidermidis cells adhesion and viability of bacterial cells in contact with modified surfaces. However, higher amount of loaded nanoZnO showed the reduced antimicrobial properties than the medium amount, suggesting the overdose effect.

Open access

B. Świeczko-Żurek, A. Pałubicka, M. Krzemiński and M. Supernak

staphylococcus epidermidis clinical isolates from orthopedic implant infections. Biomaterials 2005; 26; 6530-6535.

Open access

Agnese Stunda-Zujeva, Jana Vecstaudža, Guna Krieķe and Līga Bērziņa-Cimdiņa

the intensity of adhesion and colonization by Staphylococcus epidermidis and Pseudomonas aeruginosa on originally synthesized biomaterials with different chemical composition and modified surfaces and their effect on expression of TNF-α, β-defensin 2 and IL-10 in tissues,” Medicina (Kaunas) , vol. 47, no. 10, pp. 560–565, 2011. [7] F. F. Sene, J. R. Martinelli, and L. Gomes, “Synthesis and characterization of niobium phosphate glasses containing barium and potassium,” Journal of Non-Crystalline Solids , vol. 348, pp. 30–37, Nov. 2004. https://doi.org/10