ArticleNucleic acids research2018
DNA as UV light-harvesting antenna.
Article in Nucleic acids research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 42 citations in OpenAlex.
- Toward Bright Polymetallic Biopolymer-Protected Luminescent Nanoclusters.Molecules (Basel, Switzerland) · 2026Review
- Progress and Prospects of Biomolecular Materials in Solar Photovoltaic Applications.Molecules (Basel, Switzerland) · 2025Review
- Nonradiative Deactivation of the Fluorescent AgThe journal of physical chemistry letters · 2024Article
- Optical, structural, and biological properties of silver nanoclusters formed within the loop of a C-12 hairpin sequence.Nanoscale advances · 2023Article
- Excited-State Dynamics in a DNA-Stabilized AgThe journal of physical chemistry letters · 2023Article
- Structure and luminescence of DNA-templated silver clusters.Nanoscale advances · 2021Review
- Large-scale investigation of the effects of nucleobase sequence on fluorescence excitation and Stokes shifts of DNA-stabilized silver clusters.Nanoscale · 2021Article
- Micro RNA Sensing with Green Emitting Silver Nanoclusters.Molecules (Basel, Switzerland) · 2020Article
- Exciton Absorption and Luminescence in i-Motif DNA.Scientific reports · 2019Article
- tRNA as a stabilizing matrix for fluorescent silver clusters: photophysical properties and IR study.Nanoscale advances · 2019Article
- First Step Towards Larger DNA-Based Assemblies of Fluorescent Silver Nanoclusters: Template Design and Detailed Characterization of Optical Properties.Nanomaterials (Basel, Switzerland) · 2019Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The ordered structure of UV chromophores in DNA resembles photosynthetic light-harvesting complexes in which quantum coherence effects play a major role in highly efficient directional energy transfer. The possible role of coherent excitons in energy transport in DNA remains debated. Meanwhile, energy transport properties are greatly important for understanding the mechanisms of photochemical reactions in cellular DNA and for DNA-based artificial nanostructures. Here, we studied energy transfer in DNA complexes formed with silver nanoclusters and with intercalating dye (acridine orange). Steady-state fluorescence measurements with two DNA templates (15-mer DNA duplex and calf thymus DNA) showed that excitation energy can be transferred to the clusters from 21 and 28 nucleobases, respectively. This differed from the DNA-acridine orange complex for which energy transfer took place from four neighboring bases only. Fluorescence up-conversion measurements showed that the energy transfer took place within 100 fs. The efficient energy transport in the Ag-DNA complexes suggests an excitonic mechanism for the transfer, such that the excitation is delocalized over at least four and seven stacked bases, respectively, in one strand of the duplexes stabilizing the clusters. This result demonstrates that the exciton delocalization length in some DNA structures may not be limited to just two bases.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.