Bonding structure and haemocompatibility of silicon-incorporated amorphous carbon

Zhang, Sam, Du, Hejun, Ong, Soon-Eng, Aung, Kyaw-Naing, Too, Hui-Chin, & Miao, Xigeng (2006) Bonding structure and haemocompatibility of silicon-incorporated amorphous carbon. Thin Solid Films, 515(1), pp. 66-72.

View at publisher


Although silicon doping of amorphous carbon films can lower the intrinsic compressive stress, doping alone cannot ensure a stress free state. An additional thermal processing is needed for complete stress relaxation. This additional process can, however, alter the surface properties of the film and its relative haemocompatibility. In this study, unhydrogenated amorphous carbon film incorporated with silicon was synthesized by magnetron sputtering and annealed to relieve stress. The evolution of the bonding structure and compatibility with blood were investigated. The results showed that the clustering of the sp2-bonded carbon was retarded, and the amorphous network disordering was increased when annealing temperature increased to 600 -C. Surface thrombogenesis of the films were evaluated using in-vitro platelet adhesion assay. The static evaluation of the films incubated in human platelet-rich-plasma showed an increase in the number of adherent platelets, but with lower activation percentage.

Impact and interest:

33 citations in Scopus
31 citations in Web of Science®
Search Google Scholar™

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 7123
Item Type: Journal Article
Refereed: Yes
Additional Information: For more information, please refer to the journal’s website (see link) or contact the author. Author contact details:
Keywords: Silicon, incorporated unhydrogenated amorphous carbon (a, C(Si)), Magnetron sputtering, Bonding structure, Surface energy, Human platelet adhesion, Haemocompatibility
DOI: 10.1016/j.tsf.2005.12.037
ISSN: 0040-6090
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomaterials (090301)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2006 Elsevier
Deposited On: 24 Apr 2007 00:00
Last Modified: 29 Feb 2012 13:25

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page