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AuthorRadwan, A. Bahgat
AuthorOkonkwo, Paul C.
AuthorMurugan, Srinivasan
AuthorParande, Gururaj
AuthorTaryba, Maryna
AuthorMontemor, M. Fatima
AuthorAl-Mansoori, Layla
AuthorElrayess, Mohamed A.
AuthorAl-Qahtani, Noora
AuthorGupta, Manoj
AuthorYoussef, Khaled M.
AuthorCase, Raymundo
AuthorShakoor, R. A.
AuthorAbdullah, Aboubakr M.
Available date2023-09-29T06:33:22Z
Publication Date2023-04-18
Publication NameACS Biomaterials Science and Engineering
Identifierhttp://dx.doi.org/10.1021/acsbiomaterials.2c01366
CitationRadwan, A. B., Okonkwo, P. C., Murugan, S., Parande, G., Taryba, M., Montemor, M. F., ... & Abdullah, A. M. (2023). Evaluation of the Influence of Eggshell (ES) Concentration on the Degradation Behavior of Mg–2.5 Zn Biodegradable Alloy in Simulated Body Fluid. ACS Biomaterials Science & Engineering, 9(5), 2376-2391.
URIhttp://hdl.handle.net/10576/48118
AbstractCurrently, permanent vascular stents are fabricated using titanium and stainless steel implants that are nondegradable and offer high stability, but they have certain disadvantages. For example, the prolonged exposition of aggressive ions in the physiological media and the existence of defects in the oxide film create conditions for corrosion to occur, thus triggering unwanted biological events and compromising the mechanical integrity of the implants. Moreover, when the implant does not need to be permanent, there is the need to submit the patient for a second surgery for implant removal. As a solution for nonpermanent implants, biodegradable magnesium alloys have been deemed a promising substitute, for example, for cardiovascular-related applications and the construction of orthopedic devices. A biodegradable magnesium alloy (Mg–2.5Zn) reinforced by zinc and eggshell was employed in this study as an environment-conscious magnesium (eco) composite (Mg–2.5Zn–xES). Disintegrated melt deposition (DMD) was used to fabricate the composite. Experimental studies were conducted to investigate the biodegradation performance of Mg–Zn alloys containing 3 and 7 wt % eggshell (ES) in simulated body fluid (SBF) at 37 °C. Different corrosion techniques were used to study the corrosion behavior of the Mg–2.5Zn–xES composites, including weight loss measurements, hydrogen evolution, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and scanning vibrating electrode technique (SVET). Scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD) were employed to scrutinize the corroded surfaces’ morphology and composition. The outcomes indicated that Mg–2.5Zn–3ES possesses the lowest degradation activity.
Languageen
PublisherAmerican Chemical Society (ACS)
Subjectmagnesium
biodegradable
metal matrix composite
SBF
EIS
SVET
cytotoxicity
TitleEvaluation of the Influence of Eggshell (ES) Concentration on the Degradation Behavior of Mg–2.5Zn Biodegradable Alloy in Simulated Body Fluid
TypeArticle
Pagination2376-2391
Issue Number5
Volume Number9
ESSN2373-9878
dc.accessType Abstract Only


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