The porosity and roughness of electrodeposited calcium phosphate coatings in simulated body fluid
Abstract
Calcium phosphate coatings were electrochemically deposited on titanium from an aqueous solution of Ca(NO3)(2) and NH4H2PO4 at a current density of 10 mA cm(-2) for a deposition time of 15 mm. The obtained brushite coatings (CaHPO4 center dot 2H(2)O), were converted to hydroxyapatite (HA) by soaking in simulated body fluid (SBF) for 2, 7 and 14 days. The brushite and hydroxyapatite coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). It was shown that increasing the soaking time increased the porosity, roughness and crystallite domain size of the HA coatings and decreased the unit cell parameters and unit cell volume, while the mean pore area of HA was unaffected. The calcium and phosphorus ions concentrations in SBF were determined by atomic absorption spectroscopy (AAS) and UV-Vis spectroscopy, respectively, and a mechanism of HA growth based on dissolution-precipitation was proposed.
Keywords:
hydroxyapatite / brushite / coatings / nanostructures / titaniumSource:
Journal of the Serbian Chemical Society, 2015, 80, 2, 237-251Funding / projects:
- Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
- Magnetic and radionuclide labeled nanostructured materials for medical applications (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45015)
- Phenomena and processes of the synthesis of new glassy and nano-structured glass-ceramics materials (RS-MESTD-Basic Research (BR or ON)-172004)
DOI: 10.2298/JSC140626098D
ISSN: 0352-5139
WoS: 000351326300011
Scopus: 2-s2.0-84924984599
Collections
Institution/Community
VinčaTY - JOUR AU - Djosic, Marija S. AU - Mitrić, Miodrag AU - Mišković-Stanković, Vesna B. PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/454 AB - Calcium phosphate coatings were electrochemically deposited on titanium from an aqueous solution of Ca(NO3)(2) and NH4H2PO4 at a current density of 10 mA cm(-2) for a deposition time of 15 mm. The obtained brushite coatings (CaHPO4 center dot 2H(2)O), were converted to hydroxyapatite (HA) by soaking in simulated body fluid (SBF) for 2, 7 and 14 days. The brushite and hydroxyapatite coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). It was shown that increasing the soaking time increased the porosity, roughness and crystallite domain size of the HA coatings and decreased the unit cell parameters and unit cell volume, while the mean pore area of HA was unaffected. The calcium and phosphorus ions concentrations in SBF were determined by atomic absorption spectroscopy (AAS) and UV-Vis spectroscopy, respectively, and a mechanism of HA growth based on dissolution-precipitation was proposed. T2 - Journal of the Serbian Chemical Society T1 - The porosity and roughness of electrodeposited calcium phosphate coatings in simulated body fluid VL - 80 IS - 2 SP - 237 EP - 251 DO - 10.2298/JSC140626098D ER -
@article{ author = "Djosic, Marija S. and Mitrić, Miodrag and Mišković-Stanković, Vesna B.", year = "2015", abstract = "Calcium phosphate coatings were electrochemically deposited on titanium from an aqueous solution of Ca(NO3)(2) and NH4H2PO4 at a current density of 10 mA cm(-2) for a deposition time of 15 mm. The obtained brushite coatings (CaHPO4 center dot 2H(2)O), were converted to hydroxyapatite (HA) by soaking in simulated body fluid (SBF) for 2, 7 and 14 days. The brushite and hydroxyapatite coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). It was shown that increasing the soaking time increased the porosity, roughness and crystallite domain size of the HA coatings and decreased the unit cell parameters and unit cell volume, while the mean pore area of HA was unaffected. The calcium and phosphorus ions concentrations in SBF were determined by atomic absorption spectroscopy (AAS) and UV-Vis spectroscopy, respectively, and a mechanism of HA growth based on dissolution-precipitation was proposed.", journal = "Journal of the Serbian Chemical Society", title = "The porosity and roughness of electrodeposited calcium phosphate coatings in simulated body fluid", volume = "80", number = "2", pages = "237-251", doi = "10.2298/JSC140626098D" }
Djosic, M. S., Mitrić, M.,& Mišković-Stanković, V. B.. (2015). The porosity and roughness of electrodeposited calcium phosphate coatings in simulated body fluid. in Journal of the Serbian Chemical Society, 80(2), 237-251. https://doi.org/10.2298/JSC140626098D
Djosic MS, Mitrić M, Mišković-Stanković VB. The porosity and roughness of electrodeposited calcium phosphate coatings in simulated body fluid. in Journal of the Serbian Chemical Society. 2015;80(2):237-251. doi:10.2298/JSC140626098D .
Djosic, Marija S., Mitrić, Miodrag, Mišković-Stanković, Vesna B., "The porosity and roughness of electrodeposited calcium phosphate coatings in simulated body fluid" in Journal of the Serbian Chemical Society, 80, no. 2 (2015):237-251, https://doi.org/10.2298/JSC140626098D . .