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. 2018 May 26;3(4):385-388.
doi: 10.1016/j.bioactmat.2018.05.004. eCollection 2018 Dec.

Thin films of binary amorphous Zn-Zr alloys developed by magnetron co-sputtering for the production of degradable coronary stents: A preliminary study

Nathalie Annonay  1 , Fatiha Challali  1 , Marie-Noëlle Labour  2 , Valérie Bockelée  1 , A Garcia-Sanchez  1 , Florent Tetard  1 , Marie-Paule Besland  3 , Philippe Djemia  1 , Frédéric Chaubet  2
Affiliations

Thin films of binary amorphous Zn-Zr alloys developed by magnetron co-sputtering for the production of degradable coronary stents: A preliminary study

Nathalie Annonay et al. Bioact Mater. .

Erratum in

Abstract

Image 1.

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Figures

Image 1
Graphical abstract
Fig. 1
Fig. 1
(a) Schematic of the magnetron RF co-sputtering system and (b) image of ZnZr plasma deposition.
Fig. 2
Fig. 2
(A) XRD patterns of thin films of Zn, Zr and ZnZr4 and ZnZr5 samples as well as deposited by RF magnetron co-sputtering at room temperature (RT). (*) and (**) depict Zr hexagonal phases (JCPDS: 04-004-5064 and 04-006-2822 respectively) and (o) Zn hexagonal phase (JCPDS: 04-008-6027). Only films with Zn content from 29.8% at. were obtained in the amorphous state. (B) XPS profiles of ZnZr4 samples before and after 2 weeks in SBF.
Fig. 3
Fig. 3
SEM imaged of ZnZr5 thin layer. Top plan view of the film as deposited (A) and after 2 weeks in SBF (B). Cross-section views of the same sample film as deposited (C) and after 2 weeks in SBF. ZnZr4 samples presented a similar aspect (data not shown).
Fig. 4
Fig. 4
Resazurin in vitro HUVECs viability assay with ZnZr4 and ZnZr5 samples (see Table 1). A comparison is made with the deposition substrate (silicon) and pure zinc and zirconium films. Experiments were performed in triplicate with n = 8. Statistics were performed using One-way Anova and a Tukey post test. Results with ZnZr5 RT and ZnZr5 A300 are significantly different from all except Zn and ZnZr5 200 (*p < 0.01 and ***p < 0.0001).
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