2021
DOI: 10.1002/jbm.b.34866
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Degradation‐triggered release from biodegradable metallic surfaces

Abstract: This work is dedicated to the investigation of drug‐release control by a direct effect of degradation from biodegradable metallic surfaces. Degradation behaviors characterized by surface morphology, immersion, and electrochemical techniques demonstrated that curcumin‐coated zinc (c‐Zn) had a higher degradation rate compared to curcumin‐coated Fe (c‐Fe). High anodic dissolution rate due to the higher degradation rate and widely extended groove‐like degradation structure of c‐Zn propelled a higher curcumin relea… Show more

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Cited by 9 publications
(3 citation statements)
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“…However, the corrosion kinetics of a metal is determined by the corrosion current density which is directly proportional to the corrosion rate of the metal. [ 28 ] As tabulated in Table 1, bare Fe had the highest current density followed by PXDD140‐Fe and PXDD140/HA‐Fe scaffolds. Despite being hydrophilic, HA incorporation into the PXDD in PXDD140/HA‐Fe scaffolds did not enhance Fe corrosion as its corrosion density is lower than that of PXDD140‐Fe scaffolds.…”
Section: Resultsmentioning
confidence: 99%
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“…However, the corrosion kinetics of a metal is determined by the corrosion current density which is directly proportional to the corrosion rate of the metal. [ 28 ] As tabulated in Table 1, bare Fe had the highest current density followed by PXDD140‐Fe and PXDD140/HA‐Fe scaffolds. Despite being hydrophilic, HA incorporation into the PXDD in PXDD140/HA‐Fe scaffolds did not enhance Fe corrosion as its corrosion density is lower than that of PXDD140‐Fe scaffolds.…”
Section: Resultsmentioning
confidence: 99%
“…Bear in mind that, higher absolute impedance, |Z| value at the minimum frequency of 0.1 Hz indicate a lower corrosion current flow on a material surface. [ 28 ] Based on the figure, PXDD140‐HA‐Fe scaffolds showed an impedance of about 10 232.18 Ω.cm 2 after 14 days of immersion indicating lower current density flow on its surface. Bare porous Fe samples had the lowest |Z| value of 454.62 Ω.cm 2 and this implied a greater current flow on its surface.…”
Section: Resultsmentioning
confidence: 99%
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