ArticleMethods and applications in fluorescence2023
Structural and optical variation of pseudoisocyanine aggregates nucleated on DNA substrates.
Article in Methods and applications in fluorescence, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Tunable Molecular Photonic Wires via Geometric Control of Excitonically Coupled Cyanine Dimer Relays.The journal of physical chemistry. C, Nanomaterials and interfaces · 2026Article
- Syntheses, DNA interactions, and photodynamic antimicrobial properties of near-infrared indolium carbocyanine dyes.RSC advances · 2026Article
- Discovery of Crystallized and Weakly Coupled Aggregates of Pseudocyanine Iodide.The journal of physical chemistry. B · 2026Article
- Cell stress and phase separation stabilize the monomeric state of pseudoisocyanine chloride employed as a self-assembly crowding sensor.Communications chemistry · 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
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
Coherently coupled pseudoisocyanine (PIC) dye aggregates have demonstrated the ability to delocalize electronic excitations and ultimately migrate excitons with much higher efficiency than similar designs where excitations are isolated to individual chromophores. Here, we report initial evidence of a new type of PIC aggregate, formed through heterogeneous nucleation on DNA oligonucleotides, displaying photophysical properties that differ significantly from previously reported aggregates. This new aggregate, which we call the super aggregate (SA) due to the need for elevated dye excess to form it, is clearly differentiated from previously reported aggregates by spectroscopic and biophysical characterization. In emission spectra, the SA exhibits peak narrowing and, in some cases, significant quantum yield variation, indicative of stronger coupling in cyanine dyes. The SA was further characterized with circular dichroism and atomic force microscopy observing unique features depending on the DNA substrate. Then by integrating an AlexaFluor
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Registered trials
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