Zn-Doped CaP-Based Coatings on Ti-6Al-4V and Ti-6Al-7Nb Alloys Prepared by Magnetron Sputtering: Controllable Biodegradation, Bacteriostatic, and Osteogenic Activities; Coatings; Vol. 11, iss. 7
| Parent link: | Coatings Vol. 11, iss. 7.— 2021.— [809, 13 p.] |
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| Autor corporatiu: | , |
| Altres autors: | , , , , , , , , , , , , , , , , , , , , |
| Sumari: | Title screen New TiNb-based alloys, such as Ti-6Al-7Nb, are currently being studied around the world as an alternative to other Ti alloys, e.g., instead of Ti-6Al-4V. We conducted a pilot study where thin (approximately 1.2 micron) CaP coatings containing low doses of Zn2+ (0.4-0.8 wt.%) were prepared by the radio frequency magnetron sputtering (RFMS) of Zn-hydroxyapatite (HA) target on Ti-6Al-4V and Ti-6Al-7Nb substrates and investigated their physicochemical properties, in vitro solubility, cytotoxicity, and antibacterial and osteogenic activities. The thickness of the obtained coatings was approximately 1.2-1.3 microns. Zn substitution did not result in roughness or structural or surface changes in the amorphous CaP coatings. The distributions of Ca, P, and Zn were homogeneous across the film thickness as shown by the EDX mapping of these elements. Zn doping of CaP coatings on both types of Ti-based alloys statistically influenced the results of the scratch-test. However, obtained values are satisfactory to use Zn-CaP coatings on biomedical implants. Increased Zn2+ release vs. tapered output of Ca and phosphate ions occurred during 5 weeks of an in vitro immersion test in 0.9% NaCl solution. Ti-6Al-7Nb alloy, unlike Ti-6Al-4V, promoted more linear biodegradation of CaP coatings in vitro. As a result, CaP-based surfaces on Ti-6Al-7Nb, compared with on Ti-6Al-4V alloy, augmented the total areas of Alizarin red staining in a 21-day culture of human adipose-derived mesenchymal stem cells in a statistically significant manner. Moreover, Zn-CaP coatings statistically reduced leukemic Jurkat T cell survival within 48 h of in vitro culture. Along with the higher solubility of the Zn-CaP surface, a greater reduction (4- to 5.5-fold) in Staphylococcus aureus growth was observed in vitro when 7-day extracts of the coatings were added into the microbial culture. Hence, Zn-CaP-coated Ti-6Al-7Nb alloy with controllable biodegradation as prepared by RFMS is a prospective material suitable for bone applications in cases where there is a risk of bacterial contamination with severe consequences, for example, in leukemic patients. Further research is needed to closely investigate the mechanical features and pathways of their solubility and antimicrobial, antitumor, and osteogenic activities. |
| Idioma: | anglès |
| Publicat: |
2021
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| Matèries: | |
| Accés en línia: | https://doi.org/10.3390/coatings11070809 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667935 |
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| 200 | 1 | |a Zn-Doped CaP-Based Coatings on Ti-6Al-4V and Ti-6Al-7Nb Alloys Prepared by Magnetron Sputtering: Controllable Biodegradation, Bacteriostatic, and Osteogenic Activities |f K. A. Prosolov, D. V. Mitrichenko, A. B. Prosolov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 60 tit.] | ||
| 330 | |a New TiNb-based alloys, such as Ti-6Al-7Nb, are currently being studied around the world as an alternative to other Ti alloys, e.g., instead of Ti-6Al-4V. We conducted a pilot study where thin (approximately 1.2 micron) CaP coatings containing low doses of Zn2+ (0.4-0.8 wt.%) were prepared by the radio frequency magnetron sputtering (RFMS) of Zn-hydroxyapatite (HA) target on Ti-6Al-4V and Ti-6Al-7Nb substrates and investigated their physicochemical properties, in vitro solubility, cytotoxicity, and antibacterial and osteogenic activities. The thickness of the obtained coatings was approximately 1.2-1.3 microns. Zn substitution did not result in roughness or structural or surface changes in the amorphous CaP coatings. The distributions of Ca, P, and Zn were homogeneous across the film thickness as shown by the EDX mapping of these elements. Zn doping of CaP coatings on both types of Ti-based alloys statistically influenced the results of the scratch-test. However, obtained values are satisfactory to use Zn-CaP coatings on biomedical implants. Increased Zn2+ release vs. tapered output of Ca and phosphate ions occurred during 5 weeks of an in vitro immersion test in 0.9% NaCl solution. | ||
| 330 | |a Ti-6Al-7Nb alloy, unlike Ti-6Al-4V, promoted more linear biodegradation of CaP coatings in vitro. As a result, CaP-based surfaces on Ti-6Al-7Nb, compared with on Ti-6Al-4V alloy, augmented the total areas of Alizarin red staining in a 21-day culture of human adipose-derived mesenchymal stem cells in a statistically significant manner. Moreover, Zn-CaP coatings statistically reduced leukemic Jurkat T cell survival within 48 h of in vitro culture. Along with the higher solubility of the Zn-CaP surface, a greater reduction (4- to 5.5-fold) in Staphylococcus aureus growth was observed in vitro when 7-day extracts of the coatings were added into the microbial culture. Hence, Zn-CaP-coated Ti-6Al-7Nb alloy with controllable biodegradation as prepared by RFMS is a prospective material suitable for bone applications in cases where there is a risk of bacterial contamination with severe consequences, for example, in leukemic patients. Further research is needed to closely investigate the mechanical features and pathways of their solubility and antimicrobial, antitumor, and osteogenic activities. | ||
| 461 | |t Coatings | ||
| 463 | |t Vol. 11, iss. 7 |v [809, 13 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a element mapping | |
| 610 | 1 | |a hardness | |
| 610 | 1 | |a roughness | |
| 610 | 1 | |a in vitro solubility | |
| 610 | 1 | |a cytotoxicity | |
| 610 | 1 | |a leukemic cells | |
| 610 | 1 | |a human adipose-derived mesenchymal stem cells | |
| 610 | 1 | |a Alizarin red staining | |
| 610 | 1 | |a Staphylococcus aureus growth | |
| 610 | 1 | |a сопоставления | |
| 610 | 1 | |a твердость | |
| 610 | 1 | |a толщина | |
| 610 | 1 | |a шероховатость | |
| 610 | 1 | |a растворимость | |
| 610 | 1 | |a цитотоксичность | |
| 610 | 1 | |a клетки | |
| 610 | 1 | |a лейкоз | |
| 610 | 1 | |a стволовые клетки | |
| 610 | 1 | |a жировые ткани | |
| 610 | 1 | |a стафилококки | |
| 610 | 1 | |a сплавы | |
| 610 | 1 | |a магнетронные напыления | |
| 610 | 1 | |a биодеградация | |
| 701 | 1 | |a Prosolov |b K. A. |g Konstantin Aleksandrovich | |
| 701 | 1 | |a Mitrichenko |b D. V. |g Dmitry Vladimirovich | |
| 701 | 1 | |a Prosolov |b A. B. |g Aleksandr Borisovich | |
| 701 | 1 | |a Nikolaeva |b O. O. |g Olga Olegovna | |
| 701 | 1 | |a Lastovka |b V. V. |g Vladimir Viktorovich | |
| 701 | 1 | |a Belyavskaya |b O. A. |g Olga Andreevna | |
| 701 | 1 | |a Chebodaeva |b V. A. |g Valentina | |
| 701 | 1 | |a Glukhov |b I. A. |g Ivan | |
| 701 | 1 | |a Litvinova |b L. S. |g Larisa | |
| 701 | 1 | |a Shupletsova |b V. V. |g Valeria | |
| 701 | 1 | |a Khaziakhmatova |b O. G. |g Olga | |
| 701 | 1 | |a Malashchenko |b V. V. |g Vladimir | |
| 701 | 1 | |a Yurova |b K. A. |g Kristina | |
| 701 | 1 | |a Shunkin |b E. O. |g Egor | |
| 701 | 1 | |a Fedorov |b M. A. |g Maxim | |
| 701 | 1 | |a Komkov |b A. R. |g Andrei | |
| 701 | 1 | |a Pavlenko |b V. V. |g Vladimir | |
| 701 | 1 | |a Anisenya |b I. I. |g Ilya | |
| 701 | 1 | |a Sharkeev |b Yu. P. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1950- |g Yury Petrovich |3 (RuTPU)RU\TPU\pers\32228 |9 16228 | |
| 701 | 1 | |a Vladescu |b A. |g Alina | |
| 701 | 1 | |a Khlusov |b I. A. |c biophysicist |c Professor of Tomsk Polytechnic University, doctor of medical Sciences |f 1963- |g Igor Albertovich |3 (RuTPU)RU\TPU\pers\34907 |9 18225 | |
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