| Literature DB >> 16600577 |
Li Song1, Jie Meng, Jun Zhong, Lifeng Liu, Xinyuan Dou, Dongfang Liu, Xiaowei Zhao, Sudong Luo, Zengxing Zhang, Yanjuan Xiang, Haiyan Xu, Weiya Zhou, Ziyu Wu, Sishen Xie.
Abstract
The adsorption behavior of human fibrinogen (Hfg) on single-walled carbon nanotube (SWNT) films was investigated using scanning electron microscopy (SEM) and near edge X-ray absorption fine structure (NEXAFS) spectroscopy. It was shown in the SEM images that fibrinogen was adsorbed strongly on the surface of SWNT when the samples were incubated in the Hfg solutions for 10 min. The dependence of adsorption on the concentration of fibrinogen was also investigated and it was found that adsorption increased with increasing concentration. In order to further explore the adsorption of fibrinogen on SWNT surface, NEXAFS spectra were obtained at the N K-edge and the C K-edge. The results confirmed the conclusion regarding the dependence of adsorption on fibrinogen concentration. It is demonstrated that, due to its high sensitivity to the surface elements, NEXAFS spectroscopy is a powerful tool to investigate the adsorption of fibrinogen on SWNT films.Entities:
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Year: 2006 PMID： 16600577 DOI： 10.1016/j.colsurfb.2005.12.003
Source DB: PubMed Journal: Colloids Surf B Biointerfaces ISSN： 0927-7765 Impact factor: 5.268