Gap-modulated versus constant current mode as a tool to discriminate between DNA and substrate structure in scanning tunneling microscopy
| Autor: | G. Chiarotti, Renato Generosi, F. Amaldi, M. Scarselli, Stefano Selci, Antonio Cricenti |
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| Rok vydání: | 1993 |
| Předmět: |
chemistry.chemical_classification
Materials science business.industry Optical engineering Biomolecule Mode (statistics) Nanotechnology Spin polarized scanning tunneling microscopy Substrate (printing) law.invention chemistry law Optoelectronics Constant current Graphite Scanning tunneling microscope business |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.146384 |
| Popis: | We present several experimental results of imaging DNA on graphite. Images have been taken simultaneously in constant-current and gap-modulated mode. This way of imaging has been very helpful in order to discriminate between structures due to biological molecules and substrate artifacts. A possible way of using the tip to confirm this conclusion is shown.© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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