Aligned Carbon Nanotube Stationary Phases for Electrochromatographic Chip Separations
| Autor: | Pulickel M. Ajayan, Navdeep Bajwa, Shubhodeep Goswami, Prashanth Asuri, Lijie Ci, Steven M. Cramer |
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| Rok vydání: | 2009 |
| Předmět: |
Capillary electrochromatography
Nanotube Capillary action Chemistry Organic Chemistry Clinical Biochemistry Analytical chemistry Carbon nanotube Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Biochemistry Analytical Chemistry law.invention Condensed Matter::Materials Science Electrochromatography Chemical engineering law Phase (matter) Solid phase extraction Microfabrication |
| Zdroj: | Chromatographia. 69:473-480 |
| ISSN: | 1612-1112 0009-5893 |
| DOI: | 10.1365/s10337-008-0948-0 |
| Popis: | This paper reports a novel approach for developing a microfluidic electrochromatographic chip device using patterned vertically aligned carbon nanotubes as the stationary phase material. Patterned growth of nanotubes in a specific location of the channel is carried out using a solid phase Fe–Al catalyst as well as a vapor deposited ferrocene catalyst. Proof-of-concept applications are demonstrated using reversed phase capillary electrochromatographic separations as well as solid phase extraction of a glycosylated protein using concanavalin A immobilized onto the nanotube bed. |
| Databáze: | OpenAIRE |
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