Raman spectroscopy enabled investigation of carbon nanotubes quality upon dispersion in aqueous environments
| Autor: | Irma Kuljanishvili, Dzhuliya Vasileva, Silviya P. Zustiak, Yang Wang |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Sonication Detergents Mixing (process engineering) General Physics and Astronomy Nanotechnology 02 engineering and technology Carbon nanotube 010402 general chemistry Spectrum Analysis Raman 01 natural sciences General Biochemistry Genetics and Molecular Biology law.invention Biomaterials symbols.namesake Suspensions law General Materials Science Aqueous solution Nanotubes Carbon Water General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences symbols Surface modification Nanomedicine 0210 nano-technology Dispersion (chemistry) Raman spectroscopy |
| Zdroj: | Biointerphases. 12(1) |
| ISSN: | 1559-4106 |
| Popis: | Dispersion of high quality carbon nanotubes (CNTs) in aqueous solutions is of central importance for their potential biological and biomedical applications. Although it is now possible to obtain highly dispersed CNT solutions by means of surfactant assisted processing, organic functionalization, and mechanical mixing, a concern remains about preservation of CNTs' quality during these dispersion procedures. In this report, the authors demonstrate that by employing Raman spectroscopy, one can study changes in CNTs' quality post-dispersion. Specifically, the authors focused on mechanical mixing via sonication and quantitatively determined the effects of various parameters such as surfactants, CNTs' geometry, sonication time, and sonication method on CNTs' quality post-sonication. While not addressed here, our method could be extended to monitor CNTs' quality as a function of other parameters that could potentially compromise their quality, such as chemical functionalization or doping. |
| Databáze: | OpenAIRE |
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