XANES study of phenylalanine and glycine adsorption on single-walled carbon nanotubes

Jun Zhong,Jie Meng,Xianqing Liang,Li Song,Ting Zhao,Sishen Xie,Kurash Ibrahim,Haijie Qian,Jiaou Wang,Jinghua Guo,Haiyan Xu,Ziyu Wu

doi:10.1016/j.matlet.2008.11.013

XANES study of phenylalanine and glycine adsorption on single-walled carbon nanotubes

Jun Zhong, Jie Meng + Show 10 more

https://doi.org/10.1016/j.matlet.2008.11.013

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Journal: Materials letters	Publication Date: Nov 17, 2008
Citations: 13

Affiliation: Institute of High Energy Physics, Chinese Academy of Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Institute of Physics, Lawrence Berkeley National Laboratory

#X-ray Absorption Near Edge Structure #Single-walled Carbon Nanotubes + Show 8 more

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Abstract

We applied X-ray absorption near edge structure (XANES) spectroscopy to investigate the adsorption of amino acids (phenylalanine and glycine) onto single-walled carbon nanotubes (SWCNTs). The adsorption of amino acids has been confirmed by XANES analysis. Moreover, a clear energy shift of the C 1s to π C=O⁎ peak for glycine adsorbed on SWCNTs has been identified and assigned to the interaction between the amino acid and SWCNTs. The experimental data confirm the capability of the XANES spectroscopy as a powerful tool to characterize fine structural details at the interface of complex bio-systems.

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