Sensing of human plasma fibrinogen on polished, chemically etched and carbon treated titanium surfaces by diffractive optical element based sensor
| Autor: | Heikki Tuononen, Patrik Prachár, Vladimír Vetterl, Ladislav Cvrček, Stanislav Hason, Raimo Silvennoinen, Jiri Vanek, Martti Silvennoinen, Kari Myller |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Permittivity
Optics and Photonics Time Factors Materials science Surface Properties chemistry.chemical_element 02 engineering and technology Surface finish Chemical vapor deposition 01 natural sciences 010309 optics Electrolytes chemistry.chemical_compound Optics Ellipsometry Plasma-enhanced chemical vapor deposition 0103 physical sciences Humans Nanotechnology Titanium Models Statistical Titanium carbide business.industry technology industry and agriculture Fibrinogen Equipment Design 021001 nanoscience & nanotechnology humanities eye diseases Atomic and Molecular Physics and Optics Models Chemical chemistry Nanoparticles Adsorption 0210 nano-technology business Layer (electronics) |
| Zdroj: | Optics Express. 16:10130 |
| ISSN: | 1094-4087 |
| Popis: | Adsorption of human plasma fibrinogen (HPF) on 6 differently treated titanium samples (polished, polished and etched, and 4 titanium carbide coatings samples produced by using plasma-enhanced chemical vapour deposition (PECVD) method) is investigated by using diffractive optical element (DOE) sensor. Permittivity (susceptibility) change and fluctuation in optical roughness (R(opt)) of treated titanium surface in the presence of background electrolyte without and with HPF molecules are sensed by using DOE sensor and optical ellipsometry. Correlation between transmitted light and thickness of molecule layer was found. The findings allow to sense temporal organization and severity of adsorption of nano-scale HPF molecules on polished, on polished and etched, and on titanium carbide surface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|