Results 31 to 40 of about 12,369 (282)
Transition dipole strength of eumelanin [PDF]
Physical Review E, 2007 We report the transition dipole strength of eumelanin (the principal human photoprotective pigment) in the ultraviolet and visible. We have used both theoretical (density functional) and experimental methods to show that eumelanin is not an unusually strong absorber amongst organic chromophores.
Riesz, J. J. +5 more
openaire +4 more sources
Advanced Materials Interfaces, 2023 During the development of the nervous system, neurons sense and respond to topographical and biochemical cues found in the brain's native environment.
Anna Mariano +8 more
doaj +1 more source
International Journal of Molecular Sciences, 2023 Superficial discolored spots on Atlantic salmon (Salmo salar) fillets are a serious quality problem for commercial seafood farming. Previous reports have proposed that the black spots (called melanized focal changes (MFCs)) may be melanin, but no ...
K. Wakamatsu +3 more
semanticscholar +1 more source
Nature Communications, 2023 Melanin pigments play a critical role in physiological processes and shaping animal behaviour. Fossil melanin is a unique resource for understanding the functional evolution of melanin but the impact of fossilisation on molecular signatures for eumelanin
Tiffany S. Slater +7 more
doaj +1 more source
Solid-State Electrochemical Energy Storage Based on Soluble Melanin
Electrochem, 2021 Biocompatible and biodegradable powering materials are appealing systems for biomedical and electronic devices. Melanin is a natural and multifunctional material with redox capability, which is of great interest in electrochemical energy storage ...
João V. Paulin +2 more
doaj +1 more source
The Eumelanin Human Skin Colour Scale: a proof‐of‐concept study
British Journal of Dermatology, 2022 At present there is no standard nomenclature for describing the diversity of human constitutive skin colour.
O. Dadzie +4 more
semanticscholar +1 more source
Journal of Biomedical Optics, 2012 We describe the auto-oxidation of 3, 4-dihydroxy-L-phenylalanine (L-DOPA) in the synthesis of eumelanin to spontaneously produce fibrils upon drying. The self-assembled fibrils are of characteristic diameter ∼1 to 2 μm, composed of filaments, and are unidirectional, apart from branches that are formed at typically an angle of 20 to 22 deg.
McQueenie, Ross +3 more
openaire +3 more sources
Pigment Intensity in Dogs is Associated with a Copy Number Variant Upstream of KITLG. [PDF]
, 2020 Dogs exhibit a wide variety of coat color types, and many genes have been identified that control pigment production, appearance, and distribution. Some breeds, such as the Nova Scotia Duck Tolling Retriever (NSDTR), exhibit variation in pheomelanin ...
Affolter, Verena +6 more
core +2 more sources
International Journal of Molecular Sciences, 2022 The overproduction of eumelanin leads to a panel of unaesthetic hyper-pigmented skin diseases, including melasma and age spots. The treatment of these diseases often requires the use of tyrosinase inhibitors, which act as skin whitening agents by ...
V. Gigli +5 more
semanticscholar +1 more source
The photoprotection mechanism in the black–brown pigment eumelanin
Proceedings of the National Academy of Sciences of the United States of America, 2022 Significance The black–brown eumelanin pigment plays a major role in humans’ photoprotection against high-energy UV photons by dissipating radiation into heat before harmful radical reactions can damage tissue.
A. Ilina +9 more
semanticscholar +1 more source