Wang Yanyan, Wang Zi, Hu Nantao, Wei Liangming, Xu Dong, Wei Hao, Kong Eric Siu-Wai, Zhang Yafei
National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, PR China.
J Nanosci Nanotechnol. 2011 Jun;11(6):4874-81. doi: 10.1166/jnn.2011.4193.
Hexafluorobisphenol A (6FBPA), as a novel nerve agents sensing molecule, has been successfully attached onto the surface of single-walled carbon nanotubes (SWNTs). The sensing groups have been confirmed by infrared spectroscopy, Raman spectroscopy and X-ray photoelectron spectrometry. The results revealed that the sensing groups had been successfully anchored on the surface of nanotubes. The quantitative determination of the functional groups has also been carried out through characterization by thermogravimetric analysis. Furthermore, the morphology of the resultant SWNT-6FBPA hybrids has been observed by transmission electron microscopy and scanning electron microscopy. Due to the existence of phenolic hydroxyl groups, which can form strong hydrogen-bonding with dimethyl methylphosphonate (DMMP) (simulant of nerve agent sarin), the functionalized SWNTs showed excellent sensitivity and selectivity while the sensing devices have been fabricated.
六氟双酚A（6FBPA）作为一种新型神经毒剂传感分子，已成功附着在单壁碳纳米管（SWNTs）表面。通过红外光谱、拉曼光谱和X射线光电子能谱对传感基团进行了确认。结果表明，传感基团已成功锚定在纳米管表面。还通过热重分析表征对官能团进行了定量测定。此外，通过透射电子显微镜和扫描电子显微镜观察了所得SWNT-6FBPA杂化物的形态。由于存在能与神经毒剂沙林的模拟物甲基膦酸二甲酯（DMMP）形成强氢键的酚羟基，功能化的单壁碳纳米管在制备传感装置时表现出优异的灵敏度和选择性。
