ArticleThe journal of physical chemistry letters2022
Reversible Supramolecular Noncovalent Self-Assembly Determines the Optical Properties and the Formation of Melanin-like Nanoparticles.
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 13 papers.
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Who cites it
13 citing papers in PubMed.
- Common Photoproperties of Eumelanin and Natural Organic Matter Emerge from Ensembles of Few-Layered Nanostructures.ACS central science · 2026Article
- From melanogenesis to melanin technologies.Communications chemistry · 2025Review
- Melanin-Related Materials in Electrochemical Sensors for Monitoring the Environment and Food.Biosensors · 2025Review
- Titanium dioxide nanoparticles augment Ciprofloxacin activity via Inhibition of biofilm formation for multidrug resistance bacteria in-vitro and insilco prediction study.Scientific reports · 2025Article
- Unexplored Mechanisms of Photoprotection: Synergistic Light Absorption and Antioxidant Activity of Melanin.Antioxidants (Basel, Switzerland) · 2025Review
- Photochemical Pathways and Light-Enhanced Radical Scavenging Activity of 1,8-Dihydroxynaphthalene Allomelanin.Journal of the American Chemical Society · 2025Article
- Nanofibrous Photothermal Materials from Natural Resources: A Green Approach for Artwork Restoration.ACS applied materials & interfaces · 2024Article
- Electron Transfer Drives the Photosensitized Polymerization of Contrast Agents by Flavoprotein Tags for Correlative Microscopy.Journal of the American Chemical Society · 2024Article
- Melanin as a Photothermal Agent in Antimicrobial Systems.International journal of molecular sciences · 2024Review
- Melanin for Photoprotection and Hair Coloration in the Emerging Era of Nanocosmetics.International journal of molecular sciences · 2024Review
- Polydopamine Nanosystems in Drug Delivery: Effect of Size, Morphology, and Surface Charge.Nanomaterials (Basel, Switzerland) · 2024Review
- Site-specific fabrication of a melanin-like pigment through spatially confined progressive assembly on an initiator-loaded template.Nature communications · 2023Article
- Effect of Size, Shape and Surface Functionalization on the Antibacterial Activity of Silver Nanoparticles.Journal of functional biomaterials · 2023Review
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The role of noncovalent supramolecular self-assembly in the formation of melanin-like NP, as well as the nature of the electronic transition at the basis of their unique optical properties, is strongly debated. Here we demonstrate that, during the first stage of formation of synthetic melanin, polydopamine (PDA), a small fraction of the molecular precursor dopamine (DA) is oxidized to quinone (Q) and a simple supramolecular charge-transfer (CT) adduct is formed thanks to the electron donor and electron acceptor properties of DA and Q, respectively. This adduct, also detectable by HPLC-MS, presents the broad absorption band in the red-NIR region typical of melanin-like materials. Importantly, its disaggregation upon dilution can be easily detected since it leads to the disappearance of the CT band, indicating the reversibility of the process. Moreover, the stability constant
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