Diameter-selective separation of double-walled carbon nanotubes
"Here, we report a simple and effective way of separating double-walled carbon nanotubes as a function of their diameter using individually dispersed nanotube solutions with the aid of long and random single-stranded DNA. The subtle pHpH change in nanotube solutions gives rise to the preferenti...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | México |
| Institución: | Instituto Potosino de Investigación Científica y Tecnológica |
| Repositorio: | Repositorio Institucional del IPICYT |
| Idioma: | inglés |
| OAI Identifier: | oai:ipicyt.repositorioinstitucional.mx:1010/1098 |
| Acceso en línea: | http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1098 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Autor/Carbon nanotubes info:eu-repo/classification/Autor/Disperse systems info:eu-repo/classification/Autor/DNA info:eu-repo/classification/Autor/pH info:eu-repo/classification/Autor/Phase separation info:eu-repo/classification/Autor/Solubility info:eu-repo/classification/Autor/Texture info:eu-repo/classification/Autor/Van der Waals forces info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 |
| Sumario: | "Here, we report a simple and effective way of separating double-walled carbon nanotubes as a function of their diameter using individually dispersed nanotube solutions with the aid of long and random single-stranded DNA. The subtle pHpH change in nanotube solutions gives rise to the preferential coagulation of large-diameter tubes and allows the easy preparation of small-diameter tubes. The stronger van der Waals forces between large-diameter tubes, combined with the decreased solubility of DNA in water at low pHpH, lead to the preferential agglomeration of large-diameter tubes." |
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