Shifting molecular localization by plasmonic coupling in a single-molecule mirage
Over the last decade, two fields have dominated the attention of sub-diffraction photonics research: Plasmonics and fluorescence nanoscopy. Nanoscopy based on single-molecule localization offers a practical way to explore plasmonic interactions with nanometre resolution. However, this seemingly stra...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/87554 |
| Acceso en línea: | http://hdl.handle.net/11336/87554 |
| Access Level: | acceso abierto |
| Palabra clave: | PLASMON SINGLE MOLECULE SUPERRESOLUTION DNA ORIGAMI https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| Sumario: | Over the last decade, two fields have dominated the attention of sub-diffraction photonics research: Plasmonics and fluorescence nanoscopy. Nanoscopy based on single-molecule localization offers a practical way to explore plasmonic interactions with nanometre resolution. However, this seemingly straightforward technique may retrieve false positional information. Here, we make use of the DNA origami technique to both control a nanometric separation between emitters and a gold nanoparticle, and as a platform for super-resolution imaging based on single-molecule localization. This enables a quantitative comparison between the position retrieved from single-molecule localization, the true position of the emitter and full-field simulations. We demonstrate that plasmonic coupling leads to shifted molecular localizations of up to 30 nm: A single-molecule mirage. |
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