ArticleThe journal of physical chemistry letters2022
Ultrafast Collective Excited-State Dynamics of a Virus-Supported Fluorophore Antenna.
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 2 papers.
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Who cites it
2 citing papers in PubMed.
- Computational biophysical characterization of a superradiant virus-like particle in its ground state.bioRxiv : the preprint server for biology · 2025Article
- Genetically Engineered, Multichromophore Virus-Like Nanoparticles with Ultranarrow Distribution of Emission Intensity.ACS nano · 2025Article
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6 authors.
Funding
Abstract
Radiation brightening was recently observed in a multifluorophore-conjugated brome mosaic virus (BMV) particle at room temperature under pulsed excitation. On the basis of its nonlinear dependence on the number of chromophores, the origins of the phenomenon were attributed to a collective relaxation. However, the mechanism remains unknown. We present ultrafast transient absorption and fluorescence spectroscopic studies which shed new light on the collective nature of the relaxation dynamics in such radiation-brightened, multifluorophore particles. Our findings indicate that the emission dynamics is consistent with a superradiance mechanism. The ratio between the rates of competing radiative and nonradiative relaxation pathways depends on the number of chromophores per virus. The findings suggest that small icosahedral virus shells provide a unique biological scaffold for developing nonclassical, deep subwavelength light sources and may open new avenues for the development of photonic probes for medical imaging applications.
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