Interaction of coumarin 6 with carbon nanotubes: Disintegration of the microcrystalline state by surfactant aggregation on the nanotube surface
| Autor: | Pradipta Purkayastha, Rajashree Banerjee |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Double layer (biology)
Nanotube Materials science 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Silver nanoparticle 0104 chemical sciences Electronic Optical and Magnetic Materials law.invention Adsorption Microcrystalline Chemical engineering Pulmonary surfactant law Materials Chemistry Physical and Theoretical Chemistry 0210 nano-technology Spectroscopy Vicinal |
| Zdroj: | Journal of Molecular Liquids. 271:397-402 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2018.08.146 |
| Popis: | The laser dye coumarin 6 (C6) readily forms microcrystals in water through π-π stacking and hence the compound loses its inherent fluorescence yield. However, the C6 molecules can be extracted from the aggregates by creating vicinal hydrophobic environment. Herein, we have used carboxylic acid derivatives of SWCNTs that could internalize the C6 microcrystals due to less microchannel polarity. Molecular C6 could be extracted from the microcrystals trapped inside the SWCNTs by inducing hydrophobicity developed by aggregating surfactants on the outer wall of the nanotube. Spectroscopic results prove the interaction and internalization of the C6 microcrystals in the SWCNT channel and disintegration by the externally adsorbed surfactants. Internalization of the C6 microcrystals has also been proved by a control experiment using solid silver nanoparticles coated with surfactant double layer. |
| Databáze: | OpenAIRE |
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