Terahertz Reflectometry Imaging of Carbon Nanomaterials for Biological Application.
Terahertz Reflectometry Imaging of Carbon Nanomaterials for Biological Application.
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DOI：
10.35248/2157-7439.19.10.535
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发表时间：
2019-01-01
期刊：
影响因子：
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通讯作者：
Uddin, Jamal
中科院分区：
文献类型：
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作者：
Ghann, William;Kang, Hyeonggon;Uddin, Jamal
多壁碳纳米管具有独特的电学和力学性能，具有广泛的应用前景。已报道的多壁碳纳米管在生物医学上的应用包括药物输送、医学成像、基因输送、组织再生和诊断。为了增强多壁碳纳米管的潜在应用，需要对其进行适当的表征。太赫兹技术是一种相对陌生的光谱技术，在有效表征多壁碳纳米管方面显示出前景。本文利用太赫兹成像技术对多壁碳纳米管进行了表征，并与其他表征技术，包括透射电子显微镜和场发射扫描电子显微镜进行了比较。从重建的太赫兹图像中得到的碳纳米管的平均直径为48.54 nm，而纤维的平均长度约为1.2微米。用红外光谱、拉曼光谱和X射线能谱对多壁碳纳米管进行了表征。
The multiwalled carbon nanotubes has a myriad of applications due to its unique electrical and mechanical properties. The biomedical application of multiwalled carbon nanotubes that have been reported include drug delivery, medical imaging, gene delivery, tissue regeneration, and diagnostics. Proper characterization is required to enhance the potential application of the multiwalled carbon nanotubes. Terahertz technology is a relatively unfamiliar spectrometric technique that show promise in efficiently characterizing multiwalled carbon nanotubes. In this paper, terahertz imaging was used to characterize multiwalled carbon nanotube in comparison with other characterization techniques, including transmission electron microscopy and field emission scanning electron microscopy. The average diameter of the carbon nanotubes from the reconstructed terahertz images was 48.54 nm, while the average length of a fiber was found to be approximately 1.2 mum. The multiwalled carbon nanotubes were additionally characterized by FTIR, Raman spectroscopy, and Energy-dispersive X-ray spectroscopy.