Treating orthopedic prosthesis with diamond-like carbon: minimizing debris in Ti6Al4V

Oliveira, Luciane Yumi Suzuki de; Kuromoto, Neide K.; Siqueira, Carlos José Mesquita

doi:10.1007/s10856-014-5252-y

Cited by 12 publications

(10 citation statements)

References 21 publications

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“…To our best knowledge, few attempts have been conducted so far to apply Cu- or Ag-DLC coatings on PE surfaces [ 24 ]. DLC surface modifications could be promising, based on the finding that DLC applied at PE is known to exhibit excellent wear behavior [ 18 – 20 ]. A previous study described significant antibacterial potency of Ag-DLC-PE [ 24 ], whether DLC coatings enriched with Cu provide the same ability is still unclear.…”

Section: Discussionmentioning

confidence: 99%

Antibacterial potency of different deposition methods of silver and copper containing diamond-like carbon coated polyethylene

et al. 2016

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BackgroundAntibacterial coatings of medical devices have been introduced as a promising approach to reduce the risk of infection. In this context, diamond-like carbon coated polyethylene (DLC-PE) can be enriched with bactericidal ions and gain antimicrobial potency. So far, influence of different deposition methods and ions on antimicrobial effects of DLC-PE is unclear.MethodsWe quantitatively determined the antimicrobial potency of different PE surfaces treated with direct ion implantation (II) or plasma immersion ion implantation (PIII) and doped with silver (Ag-DLC-PE) or copper (Cu-DLC-PE). Bacterial adhesion and planktonic growth of various strains of S. epidermidis were evaluated by quantification of bacterial growth as well as semiquantitatively by determining the grade of biofilm formation by scanning electron microscopy (SEM). Additionally silver release kinetics of PIII-samples were detected.Results(1) A significant (p < 0.05) antimicrobial effect on PE-surface could be found for Ag- and Cu-DLC-PE compared to untreated PE. (2) The antimicrobial effect of Cu was significantly lower compared to Ag (reduction of bacterial growth by 0.8 (Ag) and 0.3 (Cu) logarithmic (log)-levels). (3) PIII as a deposition method was more effective in providing antibacterial potency to PE-surfaces than II alone (reduction of bacterial growth by 2.2 (surface) and 1.1 (surrounding medium) log-levels of PIII compared to 1.2 (surface) and 0.6 (medium) log-levels of II). (4) Biofilm formation was more decreased on PIII-surfaces compared to II-surfaces. (5) A silver-concentration-dependent release was observed on PIII-samples.ConclusionThe results obtained in this study suggest that PIII as a deposition method and Ag-DLC-PE as a surface have high bactericidal effects.

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Section: Discussionmentioning

confidence: 99%

Antibacterial potency of different deposition methods of silver and copper containing diamond-like carbon coated polyethylene

et al. 2016

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“…By release of Ag + these surfaces could act as local antibacterial agents (Cloutier et al 2014 ; Katsikogianni et al 2006 ). At the same time appropriate DLC surfaces can exhibit excellent tribological features as already shown for hip or knee arthroplasty (Saikko et al 2001 ; Dearnaley 1993 ; Oliveira et al 2014 ).…”

Section: Introductionmentioning

confidence: 73%

“…This leads to a major unprotected surface area of joint prostheses favoring reinfection, especially in septic revision surgery. To solve this problem addition of bactericidal agents to DLC surface modifications could be promising, based on the finding that DLC applied at PE is known to exhibit excellent wear behavior (Saikko et al 2001 ; Dearnaley 1993 ; Oliveira et al 2014 ). Some studies investigated Ag doped DLC coatings on hard wear surfaces e.g.…”

Section: Discussionmentioning

confidence: 99%

Antibacterial efficacy of ultrahigh molecular weight polyethylene with silver containing diamond-like surface layers

et al. 2015

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Antibacterial coating of medical devices is a promising approach to reduce the risk of infection but has not yet been achieved on wear surfaces, e.g. polyethylene (PE). We quantitatively determined the antimicrobial potency of different PE surfaces, which had been conversed to diamond-like carbon (DLC-PE) and doped with silver ions (Ag-DLC-PE). Bacterial adhesion and planktonic growth of various strains of S. epidermidis on Ag-DLC-PE were compared to untreated PE by quantification of colony forming units on the adherent surface and in the growth medium as well as semiquantitatively by determining the grade of biofilm formation by scanning electron microscopy. (1) A significant (p < 0.05) antimicrobial effect could be found for Ag-DLC-PE. (2) The antimicrobial effect was positively correlated with the applied fluences of Ag (fivefold reduced bacterial surface growth and fourfold reduced bacterial concentration in the surrounding medium with fluences of 1 × 1017 vs. 1 × 1016 cm−2 under implantation energy of 10 keV). (3) A low depth of Ag penetration using low ion energies (10 or 20 vs. 100 keV) led to evident antimicrobial effects (fourfold reduced bacterial surface growth and twofold reduced bacterial concentration in the surrounding medium with 10 or 20 keV and 1 × 1017 cm−2 vs. no reduction of growth with 100 keV and 1 × 1017 cm−2). (4) Biofilm formation was decreased by Ag-DLC-PE surfaces. The results obtained in this study suggest that PE-surfaces can be equipped with antibacterial effects and may provide a promising platform to finally add antibacterial coatings on wear surfaces of joint prostheses.

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“…The increasing value of the COF for the TiAl4V and the Ti6Al4V+SMAT groups can be explained by the tribological characteristic of a dry sliding system like that presented herein. During sliding against WC, the Ti6Al4V alloy undergoes plastic deformation and the release of wear debris of Ti, Al, and V at the interface between the two materials causes severe abrasive wear, increasing the COF 2,19 . The oscillation between the minimum and maximum COF values is a typical third body effect 20 .…”

Section: Resultsmentioning

confidence: 99%

Wear behavior of Diamond-like Carbon Deposited on Ti6Al4V Prepared with Surface Mechanical Attrition Treatment

et al. 2019

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Surface modification by deposition of hard coatings is a way to overpass the poor wear resistance of some metallic materials and one potential material is the Diamond-Like Carbon (DLC). We investigated the wear behavior, and the adhesion of the DLC deposited on a Ti6Al4V (Ti64) alloy after Surface Mechanical Attrition Treatment (SMAT). The SMAT was applied using 100Cr6 steel balls, and the DLC was deposited through the sputtering method. The nano-hardness was evaluated using a MTS Nano Indenter XP. The adhesion of the DLC was evaluated using a CSM Revetest, and the wear tests were performed in a reciprocating linear tribometer from CSM Instruments. The mean wear rate for the Ti64 was 437x10-6 mm 3 /N/m against 5x10-6 mm 3 /N/m for the Ti64+SMAT+DLC. The SMAT reduced the wear rate of the DLC coating, showing that the SMAT might be a viable treatment with promising results regarding the DLC wear resistance.

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Treating orthopedic prosthesis with diamond-like carbon: minimizing debris in Ti6Al4V

Cited by 12 publications

References 21 publications

Antibacterial potency of different deposition methods of silver and copper containing diamond-like carbon coated polyethylene

Antibacterial potency of different deposition methods of silver and copper containing diamond-like carbon coated polyethylene

Antibacterial efficacy of ultrahigh molecular weight polyethylene with silver containing diamond-like surface layers

Wear behavior of Diamond-like Carbon Deposited on Ti6Al4V Prepared with Surface Mechanical Attrition Treatment

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