Biodegradation kinetics of modified magnesium-based materials in cell culture medium

Carboneras, M.; García‐Alonso, M. C.; Escudero, M.L.

doi:10.1016/j.corsci.2011.01.014

Cited by 98 publications

(63 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…An inductive loop in the low frequency range was observed. This loop may be ascribed to the failure of the surface coating or relaxation of the adsorbed species, such as Mg (OH) or Mg (OH) 2 [54]. It was reported that the pitting corrosion can be defined as the appearance of the inductive loop [55].…”

Section: Electrochemical Impedance Spectroscopy (Eis) Datamentioning

confidence: 98%

Deposition of duplex MAO layer/nanostructured titanium dioxide composite coatings on Mg–1%Ca alloy using a combined technique of air plasma spraying and micro arc oxidation

Daroonparvar

Yajid

Yusof

et al. 2015

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Electrochemical Impedance Spectroscopy (Eis) Datamentioning

confidence: 98%

Deposition of duplex MAO layer/nanostructured titanium dioxide composite coatings on Mg–1%Ca alloy using a combined technique of air plasma spraying and micro arc oxidation

Daroonparvar

Yajid

Yusof

et al. 2015

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…Initial testing used immersion conditions in simple NaCl solutions, but these were found to be inappropriate [42]. Subsequently, a wide range of solutions and methodologies have been explored [36,[43][44][45][46], each with advantages and limitations, although some studies still continue to use NaCl solutions [47]. Table 1 provides a comparison of the constituent elements of several commonly used in vitro immersion solution [24,[48][49][50].…”

Section: Variability Of In Vitro Testing and The Need For Standardisamentioning

confidence: 99%

Building towards a standardised approach to biocorrosion studies: a review of factors influencing Mg corrosion in vitro pertinent to in vivo corrosion

2017

View full text Add to dashboard Cite

The factors that influence magnesium (Mg) corrosion in vitro are systematically evaluated from a review of the relevant literature. We analysed the influence of the following factors on Mg biocorrosion in vitro: (i) inorganic ions, including both anions and cations, (ii) organic components such as proteins, amino acids and vitamins, and (iii) experimental parameters such as temperature, pH, buffer system and flow rate. Considerations and recommendations towards a standardised approach to in vitro biocorrosion testing are given. Several potential simulated body fluids are recommended. Implementing a standardised approach to experimental parameters has the potential to significantly reduce variability between in vitro biocorrosion tests, and to help build towards a methodology that accurately and consistently mimics in vivo corrosion. However, there are also knowledge gaps with regard to how best to characterise the in vivo environment and corrosion mechanism. The assumption that blood plasma is the correct bodily fluid upon which to base in vitro methodologies is examined, and factors that influence the corrosion mechanism in vivo, such as specimen encapsulation, bear consideration for further studies.

show abstract

“…Se observa un pequeño incremento de los valores de impedancia total, alcanzando un valor de 1×10 4 ohm•cm 2 durante las primeras horas de inmersión, Fig. 4a; esto se debe probablemente a la formación de una capa de productos de corrosión, principalmente hidróxido de magnesio (Carboneras et al, 2011). Por otro lado, en la Fig.…”

Section: Ensayos De Impedancia Electroquímicaunclassified

Diseño de recubrimientos multicapa barrera-biomimético base TEOS-GPTMS sobre la aleación de magnesio Elektron 21 de potencial aplicación en la fabricación de implantes ortopédicos

Rueda¹,

Hernández²,

Viejo³

et al. 2016

REVMETAL

View full text Add to dashboard Cite

RESUMEN:En el presente estudio se sintetizaron recubrimientos híbridos multicapa barrera-biomimético vía sol-gel sobre la aleación de magnesio Elektron 21, de potencial aplicación en el diseño de implantes ortopédicos de uso temporal. Para la síntesis sol-gel se empleó mezclas de los precursores de películas inorgánicas, TEOS, orgánicas y GPTMS. Se prepararon soles para el desarrollo del recubrimiento barrera frente al proceso de corrosión (soles GT); y soles con incorporación de nitrato de calcio en diferentes concentraciones (soles GTCa), para el desarrollo de los recubrimientos biomiméticos que fueron depositados sobre el recubrimiento GT. Los resultados obtenidos revelaron que el recubrimiento GT incrementó la resistencia a la corrosión de la aleación en solución Hank, reduciendo la densidad de corriente de corrosión alrededor de dos órdenes de magnitud. Asimismo, la incorporación de Ca(II) a los recubrimientos GTCa favoreció la formación de una película discontinua de hidroxiapatita superficial, indicando que estos recubrimientos presentan carácter bioactivo. ABSTRACT: Design of barrier-biomimetic TEOS-GPTMS multilayer coatings deposited on the Elektron 21 magnesium alloy with potential application in the manufacture of orthopaedic implants.In the present work, barrierbiomimetic multilayer coatings were synthesized via sol-gel on the commercial Elektron 21 magnesium alloy, with potential interest in the fabrication of orthopaedic temporal implants. Sol-gel synthesis was carried out from a mixture of inorganic and organic precursors, TEOS and GPTMS. Two different sols were prepared: sols employed for the design of barrier coatings (named GT) which function were to protect the magnesium alloy against corrosion; and sols containing additionally calcium nitrate (named GTCa), in different concentrations, for the design of the biomimetic coatings, which were deposited over the GT coating. The results confirmed that the GT coatings enhanced the corrosion resistance of the base alloy in Hank solution, reducing the corrosion current density in about two orders of magnitude. Further, the presence of Ca(II) in GTCa coatings promoted the formation of discontinuous film of hydroxyapatite on the surface, indicating that those coatings exhibit bioactive properties.

show abstract

Biodegradation kinetics of modified magnesium-based materials in cell culture medium

Cited by 98 publications

References 33 publications

Deposition of duplex MAO layer/nanostructured titanium dioxide composite coatings on Mg–1%Ca alloy using a combined technique of air plasma spraying and micro arc oxidation

Deposition of duplex MAO layer/nanostructured titanium dioxide composite coatings on Mg–1%Ca alloy using a combined technique of air plasma spraying and micro arc oxidation

Building towards a standardised approach to biocorrosion studies: a review of factors influencing Mg corrosion in vitro pertinent to in vivo corrosion

Diseño de recubrimientos multicapa barrera-biomimético base TEOS-GPTMS sobre la aleación de magnesio Elektron 21 de potencial aplicación en la fabricación de implantes ortopédicos

Contact Info

Product

Resources

About