Mechanism-guided improvements to the single molecule oxidation of carbon nanotube sidewalls
| Autor: | Gregory A. Weiss, Jorge A. Lamboy, John G. Coroneus, Brett R. Goldsmith, Alexander Kane, Philip G. Collins |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Nanotube
Bioconjugation Molecular Structure Chemistry Nanotubes Carbon Surface Properties Carboxylic Acids Electric Conductivity Molecular electronics Conductance Nanotechnology Carbon nanotube Biosensing Techniques Chemical reaction Isotropic etching Atomic and Molecular Physics and Optics law.invention Kinetics Semiconductors law Electrochemistry Molecule Physical and Theoretical Chemistry Electrodes Oxidation-Reduction |
| Zdroj: | ChemPhysChem, vol 9, iss 7 |
| ISSN: | 1439-7641 |
| Popis: | Real-time monitoring of carbon nanotube conductance during electrochemical and chemical etching reveals the electronic signatures of individual bond alteration events on the nanotube sidewall. Tracking the conductance of multiple single-molecule experiments through different synthetic protocols supports putative mechanisms for sidewall derivatization. Insights gained from these mechanistic observations imply the formation of sidewall carboxylates, which are useful as handles for bioconjugation. We describe an electronic state required for efficacious chemical treatment. Such real-time monitoring can improve carboxylate yields to 45 % or more. The experiments illustrate the power of molecular nanocircuits to uncover and direct the mechanisms of chemical reactions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text