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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10287964%21RIV15-MSM-11320___
rdf:type
n16:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1016/j.msec.2014.03.024
dcterms:description
A novel approach of surface treatment of orthopaedic implants combining electric discharge machining (EDM), chemical milling (etching) and shot peening is presented in this study. Each of the three techniques have been used or proposed to be used as a favourable surface treatment of biomedical titanium alloys. But to our knowledge, the three techniques have not yet been used in combination. Surface morphology and chemistry were studied by scanning electron microscopy and X-ray photoelectron spectroscopy, respectively. Fatigue life of the material was determined and finally several in-vitro biocompatibility tests have been performed. EDM and subsequent chemical milling leads to a significant improvement of osteoblast proliferation and viability thanks to favourable surface morphology and increased oxygen content on the surface. Subsequent shot-peening significantly improves the fatigue endurance of the material. Material after proposed combined surface treatment possesses favourable mechanical properties and enhanced osteoblast proliferation. EDM treatment and EDM with shot peening also supported early osteogenic cell differentiation, manifested by a higher expression of collagen type I. The combined surface treatment is therefore promising for a range of applications in orthopaedics. A novel approach of surface treatment of orthopaedic implants combining electric discharge machining (EDM), chemical milling (etching) and shot peening is presented in this study. Each of the three techniques have been used or proposed to be used as a favourable surface treatment of biomedical titanium alloys. But to our knowledge, the three techniques have not yet been used in combination. Surface morphology and chemistry were studied by scanning electron microscopy and X-ray photoelectron spectroscopy, respectively. Fatigue life of the material was determined and finally several in-vitro biocompatibility tests have been performed. EDM and subsequent chemical milling leads to a significant improvement of osteoblast proliferation and viability thanks to favourable surface morphology and increased oxygen content on the surface. Subsequent shot-peening significantly improves the fatigue endurance of the material. Material after proposed combined surface treatment possesses favourable mechanical properties and enhanced osteoblast proliferation. EDM treatment and EDM with shot peening also supported early osteogenic cell differentiation, manifested by a higher expression of collagen type I. The combined surface treatment is therefore promising for a range of applications in orthopaedics.
dcterms:title
Innovative surface modification of Ti-6Al-4V alloy with a positive effect on osteoblast proliferation and fatigue performance Innovative surface modification of Ti-6Al-4V alloy with a positive effect on osteoblast proliferation and fatigue performance
skos:prefLabel
Innovative surface modification of Ti-6Al-4V alloy with a positive effect on osteoblast proliferation and fatigue performance Innovative surface modification of Ti-6Al-4V alloy with a positive effect on osteoblast proliferation and fatigue performance
skos:notation
RIV/00216208:11320/14:10287964!RIV15-MSM-11320___
n3:aktivita
n6:S n6:P n6:I
n3:aktivity
I, P(GAP107/12/1025), P(TA01011141), S
n3:cisloPeriodika
-
n3:dodaniDat
n14:2015
n3:domaciTvurceVysledku
n9:2958244 n9:1754394 n9:5345553 n9:5648874
n3:druhVysledku
n8:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
21949
n3:idVysledku
RIV/00216208:11320/14:10287964
n3:jazykVysledku
n20:eng
n3:klicovaSlova
Osteogenic differentiation; Osteoblast viability; Mechanical properties; Surface roughness; Acid etching; Shot peening
n3:klicoveSlovo
n12:Osteoblast%20viability n12:Osteogenic%20differentiation n12:Mechanical%20properties n12:Acid%20etching n12:Shot%20peening n12:Surface%20roughness
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[10A2C2C9D8BA]
n3:nazevZdroje
Materials Science and Engineering C
n3:obor
n11:BM
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
7
n3:projekt
n10:GAP107%2F12%2F1025 n10:TA01011141
n3:rokUplatneniVysledku
n14:2014
n3:svazekPeriodika
39
n3:tvurceVysledku
Janeček, Miloš Vandrovcová, Marta Mhaede, Mansour Bacakova, Lucie Havlikova, Jana Harcuba, Petr Stráský, Josef
n3:wos
000343949200049
s:issn
0928-4931
s:numberOfPages
9
n5:doi
10.1016/j.msec.2014.03.024
n18:organizacniJednotka
11320