TY  - JOUR
AU  - Eraković, Sanja
AU  - Janković, Ana
AU  - Veljović, Đorđe N.
AU  - Palcevskis, Eriks
AU  - Mitrić, Miodrag
AU  - Stevanović, Tatjana
AU  - Janaćković, Đorđe T.
AU  - Mišković-Stanković, Vesna B.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5321
AB  - Hydroxyapatite is the most suitable biocompatible material for bone implant coatings. However, its brittleness is a major obstacle, and that is why, recently, research focused on creating composites with various biopolymers. In this study, hydroxyapatite coatings were modified with lignin in order to attain corrosion stability and surface porosity that enables osteogenesis. Incorporating silver, well known for its antimicrobial properties, seemed the best strategy for avoiding possible infections. The silver/hydroxyapatite (Ag/HAP) and silver/hydroxyapatite/lignin (Ag/HAP/Lig) coatings were cathaphoretically deposited on titanium from ethanol suspensions, sintered at 900 degrees C in Ar, and characterized by X-ray diffraction, scanning electron microscopy, field emission scanning electron microscopy, attenuated total reflection Fourier transform infrared, and X-ray photoelectron spectroscopy. The corrosion stability of electrodeposited coatings was evaluated in vitro in Kokubos simulated body fluid (SBF) at 37 degrees C using electrochemical impedance spectroscopy. Bioactivity was estimated by immersion in SBF to evaluate the formation of hydroxyapatite on the coating surface. A microcrystalline structure of newly formed plate-shaped carbonate-hydroxyapatite was detected after only 7 days, indicating enhanced bioactive behavior. Both coatings had good corrosion stability during a prolonged immersion time. Among the two, the Ag/HAP/Lig coating had a homogeneous surface, less roughness, and low values of contact angle.
T2  - Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophysical
T1  - Corrosion Stability and Bioactivity in Simulated Body Fluid of Silver/Hydroxyapatite and Silver/Hydroxyapatite/Lignin Coatings on Titanium Obtained by Electrophoretic Deposition
VL  - 117
IS  - 6
SP  - 1633
EP  - 1643
DO  - 10.1021/jp305252a
ER  - 

@article{
author = "Eraković, Sanja and Janković, Ana and Veljović, Đorđe N. and Palcevskis, Eriks and Mitrić, Miodrag and Stevanović, Tatjana and Janaćković, Đorđe T. and Mišković-Stanković, Vesna B.",
year = "2013",
abstract = "Hydroxyapatite is the most suitable biocompatible material for bone implant coatings. However, its brittleness is a major obstacle, and that is why, recently, research focused on creating composites with various biopolymers. In this study, hydroxyapatite coatings were modified with lignin in order to attain corrosion stability and surface porosity that enables osteogenesis. Incorporating silver, well known for its antimicrobial properties, seemed the best strategy for avoiding possible infections. The silver/hydroxyapatite (Ag/HAP) and silver/hydroxyapatite/lignin (Ag/HAP/Lig) coatings were cathaphoretically deposited on titanium from ethanol suspensions, sintered at 900 degrees C in Ar, and characterized by X-ray diffraction, scanning electron microscopy, field emission scanning electron microscopy, attenuated total reflection Fourier transform infrared, and X-ray photoelectron spectroscopy. The corrosion stability of electrodeposited coatings was evaluated in vitro in Kokubos simulated body fluid (SBF) at 37 degrees C using electrochemical impedance spectroscopy. Bioactivity was estimated by immersion in SBF to evaluate the formation of hydroxyapatite on the coating surface. A microcrystalline structure of newly formed plate-shaped carbonate-hydroxyapatite was detected after only 7 days, indicating enhanced bioactive behavior. Both coatings had good corrosion stability during a prolonged immersion time. Among the two, the Ag/HAP/Lig coating had a homogeneous surface, less roughness, and low values of contact angle.",
journal = "Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophysical",
title = "Corrosion Stability and Bioactivity in Simulated Body Fluid of Silver/Hydroxyapatite and Silver/Hydroxyapatite/Lignin Coatings on Titanium Obtained by Electrophoretic Deposition",
volume = "117",
number = "6",
pages = "1633-1643",
doi = "10.1021/jp305252a"
}

Eraković, S., Janković, A., Veljović, Đ. N., Palcevskis, E., Mitrić, M., Stevanović, T., Janaćković, Đ. T.,& Mišković-Stanković, V. B.. (2013). Corrosion Stability and Bioactivity in Simulated Body Fluid of Silver/Hydroxyapatite and Silver/Hydroxyapatite/Lignin Coatings on Titanium Obtained by Electrophoretic Deposition. in Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophysical, 117(6), 1633-1643.
https://doi.org/10.1021/jp305252a

Eraković S, Janković A, Veljović ĐN, Palcevskis E, Mitrić M, Stevanović T, Janaćković ĐT, Mišković-Stanković VB. Corrosion Stability and Bioactivity in Simulated Body Fluid of Silver/Hydroxyapatite and Silver/Hydroxyapatite/Lignin Coatings on Titanium Obtained by Electrophoretic Deposition. in Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophysical. 2013;117(6):1633-1643.
doi:10.1021/jp305252a .

Eraković, Sanja, Janković, Ana, Veljović, Đorđe N., Palcevskis, Eriks, Mitrić, Miodrag, Stevanović, Tatjana, Janaćković, Đorđe T., Mišković-Stanković, Vesna B., "Corrosion Stability and Bioactivity in Simulated Body Fluid of Silver/Hydroxyapatite and Silver/Hydroxyapatite/Lignin Coatings on Titanium Obtained by Electrophoretic Deposition" in Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophysical, 117, no. 6 (2013):1633-1643,
https://doi.org/10.1021/jp305252a . .

TY  - JOUR
AU  - Eraković, Sanja
AU  - Veljović, Đorđe N.
AU  - Diouf, Papa Niokhor
AU  - Stevanović, Tatjana
AU  - Mitrić, Miodrag
AU  - Janaćković, Đorđe T.
AU  - Matić, Ivana Z.
AU  - Juranić, Zorica D.
AU  - Mišković-Stanković, Vesna B.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5089
AB  - Composite coatings based on lignin, obtained by electrophoretic deposition (EPD) on titanium, were investigated. The aim of this work was to produce hydroxyapatite/lignin (HAP/Lig) coatings on titanium and to investigate the effect of the lignin concentration on microstructure, morphology, phase composition, thermal behavior and cytotoxicity of the HAP/Lig coatings. An organosolv lignin was used for the production of the composite coatings studied in this research. The properties of HAP/Lig coatings were characterized using X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FT-IR) and X-ray photoelectron spectroscopy (XPS), as well as the MTT test of cytotoxicity. The results showed that higher lignin concentrations protected the HAP lattice during sintering, thereby improving the stability of the HAP/Lig coatings. The cell survival of peripheral blood mononuclear cells (PBMC) after proliferation indicates that the HAP/Lig coating with 1 wt% Lig electrodeposited on titanium was non-toxic with significant promise as a potential bone-repair material. (C) 2012 Elsevier B.V. All rights reserved.
T2  - Progress in Organic Coatings
T1  - The effect of lignin on the structure and characteristics of composite coatings electrodeposited on titanium
VL  - 75
IS  - 4
SP  - 275
EP  - 283
DO  - 10.1016/j.porgcoat.2012.07.005
ER  - 

@article{
author = "Eraković, Sanja and Veljović, Đorđe N. and Diouf, Papa Niokhor and Stevanović, Tatjana and Mitrić, Miodrag and Janaćković, Đorđe T. and Matić, Ivana Z. and Juranić, Zorica D. and Mišković-Stanković, Vesna B.",
year = "2012",
abstract = "Composite coatings based on lignin, obtained by electrophoretic deposition (EPD) on titanium, were investigated. The aim of this work was to produce hydroxyapatite/lignin (HAP/Lig) coatings on titanium and to investigate the effect of the lignin concentration on microstructure, morphology, phase composition, thermal behavior and cytotoxicity of the HAP/Lig coatings. An organosolv lignin was used for the production of the composite coatings studied in this research. The properties of HAP/Lig coatings were characterized using X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FT-IR) and X-ray photoelectron spectroscopy (XPS), as well as the MTT test of cytotoxicity. The results showed that higher lignin concentrations protected the HAP lattice during sintering, thereby improving the stability of the HAP/Lig coatings. The cell survival of peripheral blood mononuclear cells (PBMC) after proliferation indicates that the HAP/Lig coating with 1 wt% Lig electrodeposited on titanium was non-toxic with significant promise as a potential bone-repair material. (C) 2012 Elsevier B.V. All rights reserved.",
journal = "Progress in Organic Coatings",
title = "The effect of lignin on the structure and characteristics of composite coatings electrodeposited on titanium",
volume = "75",
number = "4",
pages = "275-283",
doi = "10.1016/j.porgcoat.2012.07.005"
}

Eraković, S., Veljović, Đ. N., Diouf, P. N., Stevanović, T., Mitrić, M., Janaćković, Đ. T., Matić, I. Z., Juranić, Z. D.,& Mišković-Stanković, V. B.. (2012). The effect of lignin on the structure and characteristics of composite coatings electrodeposited on titanium. in Progress in Organic Coatings, 75(4), 275-283.
https://doi.org/10.1016/j.porgcoat.2012.07.005

Eraković S, Veljović ĐN, Diouf PN, Stevanović T, Mitrić M, Janaćković ĐT, Matić IZ, Juranić ZD, Mišković-Stanković VB. The effect of lignin on the structure and characteristics of composite coatings electrodeposited on titanium. in Progress in Organic Coatings. 2012;75(4):275-283.
doi:10.1016/j.porgcoat.2012.07.005 .

Eraković, Sanja, Veljović, Đorđe N., Diouf, Papa Niokhor, Stevanović, Tatjana, Mitrić, Miodrag, Janaćković, Đorđe T., Matić, Ivana Z., Juranić, Zorica D., Mišković-Stanković, Vesna B., "The effect of lignin on the structure and characteristics of composite coatings electrodeposited on titanium" in Progress in Organic Coatings, 75, no. 4 (2012):275-283,
https://doi.org/10.1016/j.porgcoat.2012.07.005 . .

TY  - JOUR
AU  - Eraković, Sanja
AU  - Veljović, Đorđe N.
AU  - Diouf, Papa Niokhor
AU  - Stevanović, Tatjana
AU  - Mitrić, Miodrag
AU  - Milonjić, Slobodan K.
AU  - Mišković-Stanković, Vesna B.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3837
AB  - In this work, electrophoretic deposition (EPD) was applied to obtain novel hydroxyapatite (HAP)/lignin (Lig) biocomposite coatings on titanium substrate. Nanosized hydroxyapatite powder, prepared by using the modified chemical precipitation method, was used for the fabrication of HAP/Lig composite coatings. EPD was performed at different values of constant voltage and constant deposition time. It was confirmed that control over deposited mass can be achieved by applied voltage and time. The uniform and compact coatings were successfully deposited at applied voltage of 60 V in various deposition times lower than 1 minute. The effect of lignin as natural non-toxic polymer on microstructure, morphology and thermal behavior of biocomposite HAP/Lig coatings was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). The electrophoretically deposited HAP/Lig coating has been successfully sintered at lower sintering temperature of 900 degrees C, producing non-fractured coating and indicating that lignin may exhibit adhesive role, strengthening the bonding between HAP particles and substrate surface.
T2  - International Journal of Chemical Reactor Engineering
T1  - Electrophoretic Deposition of Biocomposite Lignin/Hydroxyapatite Coatings on Titanium
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_vinar_3837
ER  - 

@article{
author = "Eraković, Sanja and Veljović, Đorđe N. and Diouf, Papa Niokhor and Stevanović, Tatjana and Mitrić, Miodrag and Milonjić, Slobodan K. and Mišković-Stanković, Vesna B.",
year = "2009",
abstract = "In this work, electrophoretic deposition (EPD) was applied to obtain novel hydroxyapatite (HAP)/lignin (Lig) biocomposite coatings on titanium substrate. Nanosized hydroxyapatite powder, prepared by using the modified chemical precipitation method, was used for the fabrication of HAP/Lig composite coatings. EPD was performed at different values of constant voltage and constant deposition time. It was confirmed that control over deposited mass can be achieved by applied voltage and time. The uniform and compact coatings were successfully deposited at applied voltage of 60 V in various deposition times lower than 1 minute. The effect of lignin as natural non-toxic polymer on microstructure, morphology and thermal behavior of biocomposite HAP/Lig coatings was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). The electrophoretically deposited HAP/Lig coating has been successfully sintered at lower sintering temperature of 900 degrees C, producing non-fractured coating and indicating that lignin may exhibit adhesive role, strengthening the bonding between HAP particles and substrate surface.",
journal = "International Journal of Chemical Reactor Engineering",
title = "Electrophoretic Deposition of Biocomposite Lignin/Hydroxyapatite Coatings on Titanium",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_vinar_3837"
}

Eraković, S., Veljović, Đ. N., Diouf, P. N., Stevanović, T., Mitrić, M., Milonjić, S. K.,& Mišković-Stanković, V. B.. (2009). Electrophoretic Deposition of Biocomposite Lignin/Hydroxyapatite Coatings on Titanium. in International Journal of Chemical Reactor Engineering, 7.
https://hdl.handle.net/21.15107/rcub_vinar_3837

Eraković S, Veljović ĐN, Diouf PN, Stevanović T, Mitrić M, Milonjić SK, Mišković-Stanković VB. Electrophoretic Deposition of Biocomposite Lignin/Hydroxyapatite Coatings on Titanium. in International Journal of Chemical Reactor Engineering. 2009;7.
https://hdl.handle.net/21.15107/rcub_vinar_3837 .

Eraković, Sanja, Veljović, Đorđe N., Diouf, Papa Niokhor, Stevanović, Tatjana, Mitrić, Miodrag, Milonjić, Slobodan K., Mišković-Stanković, Vesna B., "Electrophoretic Deposition of Biocomposite Lignin/Hydroxyapatite Coatings on Titanium" in International Journal of Chemical Reactor Engineering, 7 (2009),
https://hdl.handle.net/21.15107/rcub_vinar_3837 .