Structural, chemical and biological properties of carbon layers sputtered on polyethyleneterephtalate
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu hodnotící studie, časopisecké články, práce podpořená grantem
- MeSH
- biokompatibilní potahované materiály * MeSH
- buněčná adheze účinky léků MeSH
- buňky 3T3 MeSH
- mikroskopie atomárních sil MeSH
- myši MeSH
- polyethylenglykoly chemie MeSH
- polyethylentereftaláty MeSH
- povrchové vlastnosti MeSH
- proliferace buněk účinky léků MeSH
- testování materiálů MeSH
- uhlík chemie MeSH
- zvířata MeSH
- Check Tag
- myši MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- hodnotící studie MeSH
- práce podpořená grantem MeSH
- Názvy látek
- biokompatibilní potahované materiály * MeSH
- polyethylenglykoly MeSH
- polyethylentereftaláty MeSH
- uhlík MeSH
Carbon layers on polyethyleneterephtalate (PET) backing were prepared by sputtering from graphite target. UV-VIS, Raman spectroscopy, RBS (Rutherford backscattering) and ERDA (Elastic Recoil Detection Analysis) techniques were used for the characterization of the layers. Surface morphology of the layers was determined by AFM technique and the adhesion of 3T3 mouse fibroblasts on the layers was studied in vitro. It was found that the properties of the deposited carbon layer depend on the sputtering time. The concentration of conjugated double bonds, fraction of amorphous hydrogenated carbon (a-C:H) containing oxygen and surface roughness are increasing functions of the sputtering time. The changes of the layer surface morphology with increasing sputtering time were also observed. For the sputtering times up to 30' the number of adhering 3T3 cells increases with increasing sputtering time. For longer sputtering times, however, the cell adhesion becomes lower probably due to unfavorable changes in roughness and morphology of the layer.
