Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules
The photophysical properties of conjugated polymers (CPs) largely depend on the interactions between the CP and its environment. We present a study of two polymers with identical conjugated backbones, bare and insulated, that showed different fluorescence excitation modulation depth histograms. Howe...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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2013
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| _version_ | 1826297707630690304 |
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| author | Camacho, R Thomsson, D Sforazzini, G Anderson, H Scheblykin, I |
| author_facet | Camacho, R Thomsson, D Sforazzini, G Anderson, H Scheblykin, I |
| author_sort | Camacho, R |
| collection | OXFORD |
| description | The photophysical properties of conjugated polymers (CPs) largely depend on the interactions between the CP and its environment. We present a study of two polymers with identical conjugated backbones, bare and insulated, that showed different fluorescence excitation modulation depth histograms. However, the polarization differences are not related to differences in conformation, as commonly believed, but to the existence of "dark" chromophores in the bare polymer that are statically quenched. This results in inhomogeneous quenching of the polymer chain that breaks the correlation between excitation fluorescence polarization and conjugated polymer chain conformation. © 2013 American Chemical Society. |
| first_indexed | 2024-03-07T04:35:47Z |
| format | Journal article |
| id | oxford-uuid:cfdf5fdf-1ceb-4949-adc0-e872d510a4d9 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:35:47Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:cfdf5fdf-1ceb-4949-adc0-e872d510a4d92022-03-27T07:45:48ZInhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single MoleculesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cfdf5fdf-1ceb-4949-adc0-e872d510a4d9EnglishSymplectic Elements at Oxford2013Camacho, RThomsson, DSforazzini, GAnderson, HScheblykin, IThe photophysical properties of conjugated polymers (CPs) largely depend on the interactions between the CP and its environment. We present a study of two polymers with identical conjugated backbones, bare and insulated, that showed different fluorescence excitation modulation depth histograms. However, the polarization differences are not related to differences in conformation, as commonly believed, but to the existence of "dark" chromophores in the bare polymer that are statically quenched. This results in inhomogeneous quenching of the polymer chain that breaks the correlation between excitation fluorescence polarization and conjugated polymer chain conformation. © 2013 American Chemical Society. |
| spellingShingle | Camacho, R Thomsson, D Sforazzini, G Anderson, H Scheblykin, I Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules |
| title | Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules |
| title_full | Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules |
| title_fullStr | Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules |
| title_full_unstemmed | Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules |
| title_short | Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules |
| title_sort | inhomogeneous quenching as a limit of the correlation between fluorescence polarization and conformation of single molecules |
| work_keys_str_mv | AT camachor inhomogeneousquenchingasalimitofthecorrelationbetweenfluorescencepolarizationandconformationofsinglemolecules AT thomssond inhomogeneousquenchingasalimitofthecorrelationbetweenfluorescencepolarizationandconformationofsinglemolecules AT sforazzinig inhomogeneousquenchingasalimitofthecorrelationbetweenfluorescencepolarizationandconformationofsinglemolecules AT andersonh inhomogeneousquenchingasalimitofthecorrelationbetweenfluorescencepolarizationandconformationofsinglemolecules AT scheblykini inhomogeneousquenchingasalimitofthecorrelationbetweenfluorescencepolarizationandconformationofsinglemolecules |