Surface functionalisation significantly changes the physical and electronic properties of carbon nano-dots† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c8nr03430c ‡ ‡The raw data supporting this article are archived in the University of Bristol's Research Data Storage Facility (DOI: 10.5523/bris.30s3i070zb0qv2tipisop5a1h4)
| Autor: | Swift, Thomas A., Duchi, Marta, Hill, Stephen A., Benito-Alifonso, David, Harniman, Robert L., Sheikh, Sadiyah, Davis, Sean A., Seddon, Annela M., Whitney, Heather M., Galan, M. Carmen, Oliver, Thomas A. A. |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Nanoscale |
| ISSN: | 2040-3372 2040-3364 |
| Popis: | The electronic structure of glycan functionalised carbon nano-dots is greatly affected by the choice of carbohydrate. Biomolecule functionalisation of carbon nano-dots (CDs) greatly enhances their biocompatibility and applicability, however, little is known about their molecular structure. Using an arsenal of spectroscopic and analytical techniques, we provide new insights into the physical and electronic structure of uncoated and glycan-functionalised CDs. Our studies reveal that surface functionalisation does not always result in a homogenous corona surrounding the core, and the choice of carbohydrate significantly affects the electronic structure of the surface CD states. Further, the average surface coverage of an ensemble of CDs can be probed via transient absorption spectroscopy. These findings have implications for CDs targeted at interactions with biological systems or local sensors. |
| Databáze: | OpenAIRE |
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