ArticleNature communications2020
Probing the heterogeneous structure of eumelanin using ultrafast vibrational fingerprinting.
Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Beyond Molecular Determinism: State-Convergent Polymerization as a Functional Design Principle Under Chemical Complexity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Characterizing excited triplet states of synthetic eumelanin and pheomelanin by the application of selected diene probes.Scientific reports · 2026Article
- Allomelanin: A Promising Alternative to Polydopamine for Bioapplications.Journal of functional biomaterials · 2026Review
- Photochemical Pathways and Light-Enhanced Radical Scavenging Activity of 1,8-Dihydroxynaphthalene Allomelanin.Journal of the American Chemical Society · 2025Article
- Physiological Roles of Eumelanin- and Melanogenesis-Associated Diseases: A Look at the Potentialities of Engineered and Microbial Eumelanin in Clinical Practice.Bioengineering (Basel, Switzerland) · 2024Review
- Melanin for Photoprotection and Hair Coloration in the Emerging Era of Nanocosmetics.International journal of molecular sciences · 2024Review
- Indole-5,6-quinones display hallmark properties of eumelanin.Nature chemistry · 2023Article
- Enzymatic polymerization of enantiomericNature communications · 2023Article
- Chemiexcitation: Mammalian Photochemistry in the DarkPhotochemistry and photobiology · 2023Review
- Reversible Supramolecular Noncovalent Self-Assembly Determines the Optical Properties and the Formation of Melanin-like Nanoparticles.The journal of physical chemistry letters · 2022Article
- The photoprotection mechanism in the black-brown pigment eumelanin.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Shedding light on neurons: optical approaches for neuromodulation.National science review · 2022Review
- Melanin concentration maps by label-free super-resolution photo-thermal imaging on melanoma biopsies.Biomedical optics express · 2022Article
- Exciton interactions in helical crystals of a hydrogen-bonded eumelanin monomer.Chemical science · 2022Article
- The Photophysics and Photochemistry of Melanin- Like Nanomaterials Depend on Morphology and Structure.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021Review
- Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator.Biosensors · 2021Article
- Stability and Optical Absorption of a Comprehensive Virtual Library of Minimal Eumelanin Oligomer Models*.Angewandte Chemie (International ed. in English) · 2021Article
- Arbutin as a Skin Depigmenting Agent with Antimelanogenic and Antioxidant Properties.Antioxidants (Basel, Switzerland) · 2021Review
- Illuminating the Effect of the Local Environment on the Performance of Organic Sunscreens: Insights From Laser Spectroscopy of Isolated Molecules and Complexes.Frontiers in chemistry · 2021Review
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Eumelanin is a brown-black biological pigment with sunscreen and radical scavenging functions important to numerous organisms. Eumelanin is also a promising redox-active material for energy conversion and storage, but the chemical structures present in this heterogeneous pigment remain unknown, limiting understanding of the properties of its light-responsive subunits. Here, we introduce an ultrafast vibrational fingerprinting approach for probing the structure and interactions of chromophores in heterogeneous materials like eumelanin. Specifically, transient vibrational spectra in the double-bond stretching region are recorded for subsets of electronic chromophores photoselected by an ultrafast excitation pulse tuned through the UV-visible spectrum. All subsets show a common vibrational fingerprint, indicating that the diverse electronic absorbers in eumelanin, regardless of transition energy, contain the same distribution of IR-active functional groups. Aggregation of chromophores diverse in oxidation state is the key structural property underlying the universal, ultrafast deactivation behavior of eumelanin in response to photoexcitation with any wavelength.
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