Szczegóły publikacji
Opis bibliograficzny
Vibrational spectroscopic analysis of a metal/carbon nanotube coating interface and the effect of its interaction with albumin / Aleksandra Wesełucha-Birczyńska, Ewa STODOLAK-ZYCH, Sylvia Turrell, Franciszek Cios, Magdalena Krzuś, Elżbieta DŁUGOŃ, Aleksandra BENKO, Wiktor NIEMIEC, Marta BŁAŻEWICZ // Vibrational Spectroscopy ; ISSN 0924-2031. — 2016 — vol. 85, s. 185–195. — Bibliogr. s. 195, Abstr. — Publikacja dostępna online od: 2016-04-13
Autorzy (9)
- Wesełucha-Birczyńska Aleksandra
- AGHStodolak-Zych Ewa
- Turrell Sylvia
- Cios Franciszek
- Krzuś Magdalena
- AGHDługoń Elżbieta
- AGHBenko Aleksandra
- AGHNiemiec Wiktor
- AGHBłażewicz Marta
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 97917 |
|---|---|
| Data dodania do BaDAP | 2016-05-25 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.vibspec.2016.04.008 |
| Rok publikacji | 2016 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Vibrational Spectroscopy |
Abstract
Multi-walled carbon nanotubes (MWCNTs) as a modifying phase on the titanium support can be potentially used for medical purposes as a material for the production of implants or implantable electrodes or for applications for cardiac surgery. Developing better blood compatible biomaterials must be connected with the condition of their anti-thrombogenic characteristic. A carbon nanotube layer was formed on a titanium plate coated in half with MWCNTs to have admission to: MWCNTs coating, to the Ti/MWCNTs interface region at the MWCNTs coating edge and finally to the Ti support. The Raman measurements were performed in two different locations: in the interface/edge region of the titanium and MWCNTs coating and in the center of the MWCNTs layer. For each of these positions, measurements in two different depths were performed: on the sample top surface of the MWCNT layer and near the bottom of the MWCNTs layer, i.e. at the titanium support interface. The studied sample regions differ in G-, D- and D′-mode structural characteristics as dispersion, crystallinity, the size of the arranged domains, and the distance between the point defects. The phase boundary region is more disordered and exposed to a greater surface tension. These features influence the interactions with albumin which represented the material behavior in contact with the tissue. The MWCNTs coating is hydrophilic (contact angle ∼55°), in the border area this value increases to ∼60°, then Ti support is hydrophobic (∼98°). Two dimensional correlation analysis allows us to unravel albumin-MWCNTs' interaction. The cross-peaks show a contribution from G+ and G− carbon nanotubes bands and protein secondary structure demonstrating the formation of a film on the surface of the test sample and indicate the change of the albumin conformation during adhesion.
