ArticleThe journal of physical chemistry. C, Nanomaterials and interfaces2022
Influence of Hydrophobicity on Excitonic Coupling in DNA-Templated Indolenine Squaraine Dye Aggregates.
Article in The journal of physical chemistry. C, Nanomaterials and interfaces, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Tunable and robust optical and structural properties of a cooperative squaraine-dye aggregate-DNA DX-DAE tile system.Nanoscale · 2025Article
- Overcoming aggregation-induced quenching in DNA-assembled rhodamine dimers.Physical chemistry chemical physics : PCCP · 2025Article
- Tuning Aggregation in Liquid-Crystalline Squaraine Chromophores.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Pursuing excitonic energy transfer with programmable DNA-based optical breadboards.Chemical Society reviews · 2023Review
- Exciton delocalization in a fully synthetic DNA-templated bacteriochlorin dimer.Physical chemistry chemical physics : PCCP · 2023Article
- Electronic Structure and Excited-State Dynamics of DNA-Templated Monomers and Aggregates of Asymmetric Polymethine Dyes.The journal of physical chemistry. A · 2023Article
- Effect of Substituent Location on the Relationship between the Transition Dipole Moments, Difference Static Dipole, and Hydrophobicity in Squaraine Dyes for Quantum Information Devices.Molecules (Basel, Switzerland) · 2023Article
- Molecular Dynamic Studies of Dye-Dye and Dye-DNA Interactions Governing Excitonic Coupling in Squaraine Aggregates Templated by DNA Holliday Junctions.International journal of molecular sciences · 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
- Exciton Chirality Inversion in Dye Dimers Templated by DNA Holliday Junction.The journal of physical chemistry letters · 2022Article
- 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
- Photocrosslinking Probes Proximity of Thymine Modifiers Tethering Excitonically Coupled Dye Aggregates to DNA Holliday Junction.Molecules (Basel, Switzerland) · 2022Article
- Data-Driven and Multiscale Modeling of DNA-Templated Dye Aggregates.Molecules (Basel, Switzerland) · 2022Article
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12 authors.
Funding
Abstract
Control over the strength of excitonic coupling in molecular dye aggregates is a substantial factor for the development of technologies such as light harvesting, optoelectronics, and quantum computing. According to the molecular exciton model, the strength of excitonic coupling is inversely proportional to the distance between dyes. Covalent DNA templating was proved to be a versatile tool to control dye spacing on a subnanometer scale. To further expand our ability to control photophysical properties of excitons, here, we investigated the influence of dye hydrophobicity on the strength of excitonic coupling in squaraine aggregates covalently templated by DNA Holliday Junction (DNA HJ). Indolenine squaraines were chosen for their excellent spectral properties, stability, and diversity of chemical modifications. Six squaraines of varying hydrophobicity from highly hydrophobic to highly hydrophilic were assembled in two dimer configurations and a tetramer. In general, the examined squaraines demonstrated a propensity toward face-to-face aggregation behavior observed via steady-state absorption, fluorescence, and circular dichroism spectroscopies. Modeling based on the Kühn-Renger-May approach quantified the strength of excitonic coupling in the squaraine aggregates. The strength of excitonic coupling strongly correlated with squaraine hydrophobic region. Dimer aggregates of dichloroindolenine squaraine were found to exhibit the strongest coupling strength of 132 meV (1065 cm
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