Electrochemical/chemical synthesis of hydroxyapatite on glassy carbon electrode for electroanalytical determination of cysteine

Vladislavić, Nives; Rončević, Ivana Škugor; Buzuk, Marijo; Buljac, Maša; Drventić, Ivana

doi:10.1007/s10008-020-04856-z

Cited by 13 publications

(5 citation statements)

References 77 publications

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“…This was done to meet regulatory requirements. The implants' corrosion resistance and biodegradability are also improved [123,124]. ZnO is added to HAp to improve its corrosion resistance and mechanical properties for use in bio-implants.…”

Section: Doping Results On Electrochemical and Mechanical Propertiesmentioning

confidence: 99%

Consequences of hydroxyapatite doping using plasma spray to implant biomaterials

Mehta

Singh

2023

J. Electrochem. Sci. Eng.

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Hydroxyapatite (HAp) is still one of the most common bioactive coatings used on metal implants in orthopaedics due to its biocompatibility. The application of HAp to metallic implants can be accomplished using a variety of processes. Plasma spray (PS) coating stands out as the method of choice due to its dependability, affordability, and ability to protect metal surfaces against rust and wear. The use of HAp in medicine has been limited due to the material's unfavorable mechanical characteristics, such as brittleness, a lack of fracture toughness, and inadequate tensile strength. In addition, the remodeling durations of HAp-covered implants are significantly longer, the rate of osseointegration is significantly lower, and no antimicrobial actions or features are present in these implants. The mechanical and biological properties of HAp have been improved by applying various approaches, all of which fall under the category of surface modification tactics. Dopants are one of those strategies that are extremely successful at changing the characteristics and using them in HAp is one of those methods. As a result, this review study aims to consolidate data on implant Hap coating using the plasma spray approach and assess the benefits and problems associated with employing this method. In addition, the paper addresses how altering the structural, chemical, and mechanical features of HAp can assist in overcoming these limitations. In conclusion, it explains how the incorporation of entering the HAp structure can change the features that, when coated using the plasma spraying approach, alter the functionality of the implant.

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Section: Doping Results On Electrochemical and Mechanical Propertiesmentioning

confidence: 99%

Consequences of hydroxyapatite doping using plasma spray to implant biomaterials

Mehta

Singh

2023

J. Electrochem. Sci. Eng.

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“…According to Eliaz [ 33 ], having achieved some nucleation already at −842 mV vs. SCE, potentials below −1.26 V vs. SCE were required to promote HA growth on Ti-6Al-4V substrate when potentiostatic deposition from an electrolyte containing 0.61 mM Ca(NO 3 ) 2 and 0.36 mM NH 4 H 2 PO 4 at pH = 6 was attempted. Although it is not strictly comparable with a galvanostatic pulse deposition scheme, potentiostatic (current-time) transients recorded during the DC deposition of HA on a glassy carbon electrode were associated with the nucleation and growth of deposits on a conducting surface [ 34 ], wherein the current density shifted towards more negative values as the applied potential was made more negative.…”

Section: Resultsmentioning

confidence: 99%

Surface Modified β-Ti-18Mo-6Nb-5Ta (wt%) Alloy for Bone Implant Applications: Composite Characterization and Cytocompatibility Assessment

Escobar

Careta

Navas

et al. 2023

JFB

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Commercially available titanium alloys such as Ti-6Al-4V are established in clinical use as load-bearing bone implant materials. However, concerns about the toxic effects of vanadium and aluminum have prompted the development of Al- and V-free β-Ti alloys. Herein, a new alloy composed of non-toxic elements, namely Ti-18Mo-6Nb-5Ta (wt%), has been fabricated by arc melting. The resulting single β-phase alloy shows improved mechanical properties (Young’s modulus and hardness) and similar corrosion behavior in simulated body fluid when compared with commercial Ti-6Al-4V. To increase the cell proliferation capability of the new biomaterial, the surface of Ti-18Mo-6Nb-5Ta was modified by electrodepositing calcium phosphate (CaP) ceramic layers. Coatings with a Ca/P ratio of 1.47 were obtained at pulse current densities, −jc, of 1.8–8.2 mA/cm2, followed by 48 h of NaOH post-treatment. The thickness of the coatings has been measured by scanning electron microscopy from an ion beam cut, resulting in an average thickness of about 5 μm. Finally, cytocompatibility and cell adhesion have been evaluated using the osteosarcoma cell line Saos-2, demonstrating good biocompatibility and enhanced cell proliferation on the CaP-modified Ti-18Mo-6Nb-5Ta material compared with the bare alloy, even outperforming their CaP-modified Ti-6-Al-4V counterparts.

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“…The slight change in sensitivity observed at higher cysteine concentrations and relatively good linearity could be due to adsorbed cysteine on the electrode surface and related to possible passivation of part of the surface or changes in complex morphology due to the interaction of copper and thiol compounds. [34] For the successful application of copper coordination complexes, it is necessary to implement interferences study of some species, especially those present in biological samples. Due to the properties of copper to interact easily with thiol contain compounds, possible interferences are precisely from these types of analytes.…”

Section: Analytical Applicability Of the Gc|swcnt|1 Electrodementioning

confidence: 99%

Copper(II) Coordination Compound with 2-Oxonicotinate: Synthesis, Spectroscopic and Electrochemical Studies

2023

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Metal organic frameworks (MOFs) are gaining interest for technological purposes due to their intriguing open structure properties such as ion exchange, catalytic properties and application as sensors. To prepare coordination compounds with desired properties, the choice of organic ligand is crucial. This work demonstrates the hydrothermal synthesis of a copper(II) coordination compound with 2-hydroxynicotinic acid. Characterization was based on elemental analyses, ESI-MS, MALDI-TOFMS, FT-IR spectra, thermogravimetric analysis (TGA), and cyclic voltammetry. Electrochemical characterization of the compound prepared was also carried out to find a sensitive and simple method to improve the determination of biologically active thiol substances. From the rectangular voltammetry results, a linear response between 0.2 and 20 μM was obtained with an estimated detection limit of 0.09 μM.

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Electrochemical/chemical synthesis of hydroxyapatite on glassy carbon electrode for electroanalytical determination of cysteine

Cited by 13 publications

References 77 publications

Consequences of hydroxyapatite doping using plasma spray to implant biomaterials

Consequences of hydroxyapatite doping using plasma spray to implant biomaterials

Surface Modified β-Ti-18Mo-6Nb-5Ta (wt%) Alloy for Bone Implant Applications: Composite Characterization and Cytocompatibility Assessment

Copper(II) Coordination Compound with 2-Oxonicotinate: Synthesis, Spectroscopic and Electrochemical Studies

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