In vitro degradation of ZnO flowered coated Zn-Mg alloys in simulated physiological conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22350%2F17%3A43913817" target="_blank" >RIV/60461373:22350/17:43913817 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.msec.2016.08.071" target="_blank" >http://dx.doi.org/10.1016/j.msec.2016.08.071</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msec.2016.08.071" target="_blank" >10.1016/j.msec.2016.08.071</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In vitro degradation of ZnO flowered coated Zn-Mg alloys in simulated physiological conditions

Popis výsledku v původním jazyce

Flowered coatings composed by ZnO crystals were successfully electrodeposited on Zn-Mg alloys. The distinct coatings morphologieswere found to be dependent upon the solid interfaces distribution,with the smaller number of bigger flowers (? 46 ?m) obtained on Zn-Mg alloy containing 1 wt.% Mg (Zn-1Mg) contrasting with the higher number of smaller flowers (? 38 ?m) achieved on Zn-Mg alloy with 2 wt.% Mg (Zn-2Mg). To assess the in vitro behaviour of these novel resorbable materials, a detailed evaluation of the degradation behaviour, in simulated physiological conditions, was performed by electrochemical impedance spectroscopy (EIS). The opposite behaviours observed in the corrosion resistances resulted in the build-up of distinct corrosion layers. The products forming these layers, preferentially detected at the flowers, were identified and their spatial distribution disclosed by EDS and Raman spectroscopy techniques. The presence of smithsonite, simonkolleite, hydrozincite, skorpionite and hydroxyapatite were assigned to both corrosion layers. However the distinct spatial distributions depictedmay impact the biocompatibility of these resorbablematerials,with the bone analogue compounds (hydroxyapatite and skorpionite) depicted in-between the ZnO crystals and on the top corrosion layer of Zn-1Mg flowers clearly contrasting with the hindered layer formed at the interface of the substrate with the flowers on Zn-2Mg.

Název v anglickém jazyce

In vitro degradation of ZnO flowered coated Zn-Mg alloys in simulated physiological conditions

Popis výsledku anglicky

Flowered coatings composed by ZnO crystals were successfully electrodeposited on Zn-Mg alloys. The distinct coatings morphologieswere found to be dependent upon the solid interfaces distribution,with the smaller number of bigger flowers (? 46 ?m) obtained on Zn-Mg alloy containing 1 wt.% Mg (Zn-1Mg) contrasting with the higher number of smaller flowers (? 38 ?m) achieved on Zn-Mg alloy with 2 wt.% Mg (Zn-2Mg). To assess the in vitro behaviour of these novel resorbable materials, a detailed evaluation of the degradation behaviour, in simulated physiological conditions, was performed by electrochemical impedance spectroscopy (EIS). The opposite behaviours observed in the corrosion resistances resulted in the build-up of distinct corrosion layers. The products forming these layers, preferentially detected at the flowers, were identified and their spatial distribution disclosed by EDS and Raman spectroscopy techniques. The presence of smithsonite, simonkolleite, hydrozincite, skorpionite and hydroxyapatite were assigned to both corrosion layers. However the distinct spatial distributions depictedmay impact the biocompatibility of these resorbablematerials,with the bone analogue compounds (hydroxyapatite and skorpionite) depicted in-between the ZnO crystals and on the top corrosion layer of Zn-1Mg flowers clearly contrasting with the hindered layer formed at the interface of the substrate with the flowers on Zn-2Mg.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials science and engineering C

ISSN

0928-4931

e-ISSN

—

Svazek periodika

70

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

112-120

Kód UT WoS článku

000388046900014

EID výsledku v databázi Scopus

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