| 000 | 03912nlm1a2200505 4500 | ||
|---|---|---|---|
| 001 | 668245 | ||
| 005 | 20231030042142.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\39469 | ||
| 035 | _aRU\TPU\network\39390 | ||
| 090 | _a668245 | ||
| 100 | _a20220706a2022 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aIn Vitro Biodegradation of a-C:H:SiOx Films on Ti-6Al-4V Alloy _fA. S. Grenaderov, A. Solovyev, K. V. Oskomov [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 55 tit.] | ||
| 330 | _aThis paper focuses mainly on the in vitro study of a five-week biodegradation of a-C:H:SiOx films of different thickness, obtained by plasma-assisted chemical vapor deposition onto Ti-6Al-4V alloy substrate using its pulsed bipolar biasing. In vitro immersion of a-C:H:SiOx films in a solution of 0.9% NaCl was used. It is shown how the a-C:H:SiOx film thickness (0.5-3 µm) affects the surface morphology, adhesive strength, and Na+ and Cl− precipitation on the film surface from the NaCl solution. With increasing film thickness, the roughness indices are reducing a little. The adhesive strength of the a-C:H:SiOx films to metal substrate corresponds to quality HF1 (0.5 µm in thickness) and HF2-HF3 (1.5-3 µm in thickness) of the Rockwell hardness test (VDI 3198) that defines strong interfacial adhesion and is usually applied in practice. The morphometric analysis of the film surface shows that on a-C:H:SiOx-coated Ti-6Al-4V alloy surface, the area occupied by the grains of sodium chloride is lower than on the uncoated surface. The reduction in the ion precipitation from 0.9% NaCl onto the film surface depended on the elemental composition of the surface layer conditioned by the thickness growth of the a-C:H:SiOx film. Based on the results of energy dispersive X-ray spectroscopy, the multiple regression equations are suggested to explain the effect of the elemental composition of the a-C:H:SiOx film on the decreased Na+ and Cl− precipitation. As a result, the a-C:H:SiOx films successfully combine good adhesion strength and rare ion precipitation and thus are rather promising for medical applications on cardiovascular stents and/or friction parts of heart pumps. | ||
| 461 | _tMaterials | ||
| 463 |
_tVol. 15, iss. 12 _v[4239, 17 p.] _d2022 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _adiamond-like nanocomposite | |
| 610 | 1 | _aa-C:H:SiOx film | |
| 610 | 1 | _aadhesion | |
| 610 | 1 | _afive-week biodegradation | |
| 610 | 1 | _a0.9% NaCl solution | |
| 610 | 1 | _aалмазоподобные соединения | |
| 610 | 1 | _aнанокомпозиты | |
| 610 | 1 | _aадгезия | |
| 701 | 1 |
_aGrenaderov _bA. S. _gAleksandr Sergeevich |
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| 701 | 1 |
_aSolovyev _bA. _gAndrey |
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| 701 | 1 |
_aOskomov _bK. V. _gKonstantin Vladimirovich |
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| 701 | 1 |
_aPorokhova _bE. _gEkaterina |
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| 701 | 1 |
_aBrazovsky (Brazovskii) _bK. S. _cspecialist in the field of electronics _ccandidate of medical Sciences, associate Professor Tomsk Polytechnic University _f1971- _gKonstantin Stanislavovich _2stltpush _3(RuTPU)RU\TPU\pers\36870 |
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| 701 | 1 |
_aGorokhova _bA. V. _gAnna Viktorovna |
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| 701 | 1 |
_aNasibov _bT. _gTemur |
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| 701 | 1 |
_aLitvinova _bL. _gLarisa |
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| 701 | 1 |
_aKhlusov _bI. A. _cbiophysicist _cProfessor of Tomsk Polytechnic University, doctor of medical Sciences _f1963- _gIgor Albertovich _2stltpush _3(RuTPU)RU\TPU\pers\34907 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа химических и биомедицинских технологий _c(2017- ) _h8120 _2stltpush _3(RuTPU)RU\TPU\col\23537 |
| 801 | 2 |
_aRU _b63413507 _c20220706 _gRCR |
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| 856 | 4 | _uhttps://doi.org/10.3390/ma15124239 | |
| 942 | _cCF | ||