Corrosion protection performance of porous strontium hydroxyapatite coating on polypyrrole coated 316L stainless steel

Gopi, D.; Ramya, S.; Rajeswari, D.; Kavitha, L.

doi:10.1016/j.colsurfb.2013.01.065

Cited by 91 publications

(64 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Compared with AZ31, the TA/AZ31 has a higher R p value, which can be attributed to the effective protection of TA coating as the passivation film. However, the HA/TA double-coated AZ31 Mg alloys shows the largest value of the polarization resistance due to the superposition of the protection of double coating [31]. It is also clear that the Nyquist plot of the HA/TA/AZ31 has two capacitive semicircles-the first semicircle is attributed to the porous HA coating, and the second semicircle to the dense TA coating [31].…”

Section: Eis Studiesmentioning

confidence: 95%

“…However, the HA/TA double-coated AZ31 Mg alloys shows the largest value of the polarization resistance due to the superposition of the protection of double coating [31]. It is also clear that the Nyquist plot of the HA/TA/AZ31 has two capacitive semicircles-the first semicircle is attributed to the porous HA coating, and the second semicircle to the dense TA coating [31]. We infer that the HA/TA double coating can significantly improve the corrosion resistance of AZ31.…”

Section: Eis Studiesmentioning

confidence: 98%

“…Compared with the direct formation of HA, tannic acid can induce a more uniform HA coating, which may be attributed to the increase in the number of the centers of HA growth [19,20]. The pores in the HA/TA coating may be caused by hydrogen evolution [23,31]. The cross-section morphologies of the HA, TA, and HA/TA coatings are presented in Figure 1e-g, and the thickness of the coatings are shown in Table 1.…”

Section: Sem Analysis Of the Samplesmentioning

confidence: 99%

See 2 more Smart Citations

Preparation of Hydroxyapatite/Tannic Acid Coating to Enhance the Corrosion Resistance and Cytocompatibility of AZ31 Magnesium Alloys

Zhu

Wang

et al. 2017

Coatings

View full text Add to dashboard Cite

Hydroxyapatite/tannic acid coating (HA/TA) were prepared on AZ31 magnesium alloys (AZ31) via chemical conversion and biomimetic methods. The characterization and properties of the coating were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), corrosion testing, MC3T3-E1 cell proliferation assay, and MC3T3-E1 cell morphology observation. The results showed that tannic acid as an inducer increased the number of nucleation centers of hydroxyapatite and rendered the morphology more uniform. Compared to bare AZ31 magnesium (Mg) alloys (E corr = −1.462 ± 0.006 V, I corr = (4.8978 ± 0.2455) × 10 −6 A/cm 2 ), the corrosion current density of the HA/TA-coated magnesium alloys ((5.6494 ± 0.3187) × 10 −8 A/cm 2 ) decreased two orders of magnitude, and the corrosion potential of the HA/TA-coated Mg alloys (E corr = −1.304 ± 0.006 V) increased by about 158 mV. This indicated that the HA/TA coating was effectively protecting the AZ31 against corrosion in simulated body fluid (SBF). Cell proliferation assays and cell morphology observations results showed that the HA/TA coating was not toxic to the MC3T3-E1 cells.

show abstract

Section: Eis Studiesmentioning

confidence: 95%

Section: Eis Studiesmentioning

confidence: 98%

Section: Sem Analysis Of the Samplesmentioning

confidence: 99%

See 1 more Smart Citation

Preparation of Hydroxyapatite/Tannic Acid Coating to Enhance the Corrosion Resistance and Cytocompatibility of AZ31 Magnesium Alloys

Zhu

Wang

et al. 2017

Coatings

View full text Add to dashboard Cite

show abstract

“…As the most popular biomedical material, AISI 316L has advantageous mechanical properties and acceptable corrosion resistance [1][2][3]. However, its poor localized pitting corrosion resistant ability has limited its application.…”

Section: Introductionmentioning

confidence: 99%

Surface modification of biomedical AISI 316L stainless steel with zirconium carbonitride coatings

Wang

Zhao

Ding

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

“…One way to avoid ion release by the metal of the implant is to coat the metallic implant with a protective film, which in turn could be functionalized with the addition of bioactive particles. That way, the coating acts as a barrier, preventing the release of metal ions and aiding the formation of a bond with the old bone through formation of hydroxyapatite (HAp) [6][7][8]. Wollastonite particles have generated much interest due to its promise as a potential implantable material because it can form bonds with bone tissue through the development of a biological apatite layer on the surface [9,10].…”

Section: Introductionmentioning

confidence: 99%

Bioactive Sol Gel Coatings Applied Using the Pneumatic Spray Technique on AISI 316L Stainless Steel

A¹

2015

J Biotechnol Biomater

View full text Add to dashboard Cite

Bioactive coatings were obtained via the sol gel method and deposited on stainless steel AISI 316L using a pneumatic spray. TEOS and MTES were used as precursors, obtaining a hybrid sol; wollastonite bioactive particles were dispersed inside the sol. The corrosion resistance of the coatings was tested with potentiodynamic curves after immersion of the coatings in SBF for 7 and 40 days. It was possible to obtain coatings with a thickness of 47.7 ± 8 µm. In comparison with other methods of deposition, it was possible to obtain thicker coatings with the pneumatic spray deposition technique, giving the substrate a better protection factor against corrosion. After immersion in SBF (simulated physiologic fluid), the formation of an appetite film on the surface and inside the pores was observed. Deposition of the apatite film helps to promote Osseo integration, and the product formation inside the pores helps to improve corrosion resistance of the substrate.

show abstract

Corrosion protection performance of porous strontium hydroxyapatite coating on polypyrrole coated 316L stainless steel

Cited by 91 publications

References 46 publications

Preparation of Hydroxyapatite/Tannic Acid Coating to Enhance the Corrosion Resistance and Cytocompatibility of AZ31 Magnesium Alloys

Preparation of Hydroxyapatite/Tannic Acid Coating to Enhance the Corrosion Resistance and Cytocompatibility of AZ31 Magnesium Alloys

Surface modification of biomedical AISI 316L stainless steel with zirconium carbonitride coatings

Bioactive Sol Gel Coatings Applied Using the Pneumatic Spray Technique on AISI 316L Stainless Steel

Contact Info

Product

Resources

About