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Deliberate Switching of Single Photochromic Triads
Photochromic molecules can be reversibly converted between two bistable conformations by light, and are considered as promising building blocks in novel macromolecular structures for sensing and imaging techniques. We have studied individual molecular triads consisting of two strong fluorophores (pe...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5282491/ https://www.ncbi.nlm.nih.gov/pubmed/28139764 http://dx.doi.org/10.1038/srep41739 |
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author | Maier, Johannes Pärs, Martti Weller, Tina Thelakkat, Mukundan Köhler, Jürgen |
author_facet | Maier, Johannes Pärs, Martti Weller, Tina Thelakkat, Mukundan Köhler, Jürgen |
author_sort | Maier, Johannes |
collection | PubMed |
description | Photochromic molecules can be reversibly converted between two bistable conformations by light, and are considered as promising building blocks in novel macromolecular structures for sensing and imaging techniques. We have studied individual molecular triads consisting of two strong fluorophores (perylene bisimide) that are covalently linked via a photochromic unit (dithienylcyclopentene) and distinguished between deliberate switching and spontaneous blinking. It was verified that the probability for observing deliberate light-induced switching of a single triad (rather than stochastic blinking) amounts to 0.8 ± 0.1. In a few exceptional cases this probability can exceed 0.95. These numbers are sufficiently large for application in sensitive biosensing, and super-resolution imaging. This opens the possibility to develop devices that can be controlled by an external optical stimulus on a truly molecular length scale. |
format | Online Article Text |
id | pubmed-5282491 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-52824912017-02-03 Deliberate Switching of Single Photochromic Triads Maier, Johannes Pärs, Martti Weller, Tina Thelakkat, Mukundan Köhler, Jürgen Sci Rep Article Photochromic molecules can be reversibly converted between two bistable conformations by light, and are considered as promising building blocks in novel macromolecular structures for sensing and imaging techniques. We have studied individual molecular triads consisting of two strong fluorophores (perylene bisimide) that are covalently linked via a photochromic unit (dithienylcyclopentene) and distinguished between deliberate switching and spontaneous blinking. It was verified that the probability for observing deliberate light-induced switching of a single triad (rather than stochastic blinking) amounts to 0.8 ± 0.1. In a few exceptional cases this probability can exceed 0.95. These numbers are sufficiently large for application in sensitive biosensing, and super-resolution imaging. This opens the possibility to develop devices that can be controlled by an external optical stimulus on a truly molecular length scale. Nature Publishing Group 2017-01-31 /pmc/articles/PMC5282491/ /pubmed/28139764 http://dx.doi.org/10.1038/srep41739 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Maier, Johannes Pärs, Martti Weller, Tina Thelakkat, Mukundan Köhler, Jürgen Deliberate Switching of Single Photochromic Triads |
title | Deliberate Switching of Single Photochromic Triads |
title_full | Deliberate Switching of Single Photochromic Triads |
title_fullStr | Deliberate Switching of Single Photochromic Triads |
title_full_unstemmed | Deliberate Switching of Single Photochromic Triads |
title_short | Deliberate Switching of Single Photochromic Triads |
title_sort | deliberate switching of single photochromic triads |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5282491/ https://www.ncbi.nlm.nih.gov/pubmed/28139764 http://dx.doi.org/10.1038/srep41739 |
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