ArticleThe journal of physical chemistry letters2022
Tuning between Quenching and Energy Transfer in DNA-Templated Heterodimer Aggregates.
Article in The journal of physical chemistry letters, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Tunable Molecular Photonic Wires via Geometric Control of Excitonically Coupled Cyanine Dimer Relays.The journal of physical chemistry. C, Nanomaterials and interfaces · 2026Article
- Distinguishing packing configurations of molecular dimers using excited-state absorption peaks in two-dimensional electronic spectra.The Journal of chemical physics · 2025Article
- Multiconfigurational Excitonic Couplings in Homo- and Heterodimer Stacks of Azobenzene-Derived Dyes.The journal of physical chemistry. A · 2024Article
- DNA Framework-Engineered Assembly of Cyanine Dyes for Structural Identification of Nucleic Acids.JACS Au · 2024Article
- Pursuing excitonic energy transfer with programmable DNA-based optical breadboards.Chemical Society reviews · 2023Review
- The OpenMolcasJournal of chemical theory and computation · 2023Article
- Electronic Structure and Excited-State Dynamics of DNA-Templated Monomers and Aggregates of Asymmetric Polymethine Dyes.The journal of physical chemistry. A · 2023Article
- Article
- Intramolecular Charge Transfer and Ultrafast Nonradiative Decay in DNA-Tethered Asymmetric Nitro- and Dimethylamino-Substituted Squaraines.The journal of physical chemistry. A · 2023Article
- Structural and optical variation of pseudoisocyanine aggregates nucleated on DNA substrates.Methods and applications in fluorescence · 2023Article
- Activating charge-transfer state formation in strongly-coupled dimers using DNA scaffolds.Chemical science · 2022Article
- Tunable Electronic Structure via DNA-Templated Heteroaggregates of Two Distinct Cyanine Dyes.The journal of physical chemistry. C, Nanomaterials and interfaces · 2022Article
- Symmetry Breaking Charge Transfer in DNA-Templated Perylene Dimer Aggregates.Molecules (Basel, Switzerland) · 2022Article
- Molecular dynamics simulations of cyanine dimers attached to DNA Holliday junctions.RSC advances · 2022Article
- Data-Driven and Multiscale Modeling of DNA-Templated Dye Aggregates.Molecules (Basel, Switzerland) · 2022Article
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19 authors.
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Abstract
Molecular excitons, which propagate spatially via electronic energy transfer, are central to numerous applications including light harvesting, organic optoelectronics, and nanoscale computing; they may also benefit applications such as photothermal therapy and photoacoustic imaging through the local generation of heat via rapid excited-state quenching. Here we show how to tune between energy transfer and quenching for heterodimers of the same pair of cyanine dyes by altering their spatial configuration on a DNA template. We assemble "transverse" and "adjacent" heterodimers of Cy5 and Cy5.5 using DNA Holliday junctions. We find that the transverse heterodimers exhibit optical properties consistent with excitonically interacting dyes and fluorescence quenching, while the adjacent heterodimers exhibit optical properties consistent with nonexcitonically interacting dyes and disproportionately large Cy5.5 emission, suggestive of energy transfer between dyes. We use transient absorption spectroscopy to show that quenching in the transverse heterodimer occurs via rapid nonradiative decay to the ground state (∼31 ps) and that in the adjacent heterodimer rapid energy transfer from Cy5 to Cy5.5 (∼420 fs) is followed by Cy5.5 excited-state relaxation (∼700 ps). Accessing such drastically different photophysics, which may be tuned on demand for different target applications, highlights the utility of DNA as a template for dye aggregation.
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