Results 21 to 30 of about 7,289 (188)

Melanin and Melanin-Like Hybrid Materials in Regenerative Medicine [PDF]

open access: yesNanomaterials, 2020
Melanins are a group of dark insoluble pigments found widespread in nature. In mammals, the brown-black eumelanins and the reddish-yellow pheomelanins are the main determinants of skin, hair, and eye pigmentation and play a significant role in ...
Chiara Cavallini   +9 more
doaj   +5 more sources

Fungal Melanins and their Potential Applications: A Review [PDF]

open access: yesBioResources, 2023
Melanins are complex molecules found in many organisms including bacteria, fungi, plants, and animals that have protective functions against stress. In fungi there are several biochemical routes for their synthesis, and their diversity and structural ...
Sac N. Salgado-Castillo   +6 more
doaj   +6 more sources

Melanin [PDF]

open access: yesCurrent Biology, 2020
Melanins are a unique class of pigments found throughout the biosphere with a wide variety of functions, structures, and presentations. Cordero and Casadevall highlight the wide range of places melanins are found and the diverse functions they play in nature.
Radames J B, Cordero, Arturo, Casadevall
openaire   +2 more sources

A Straightforward Access to New Amides of the Melanin Precursor 5,6-Dihydroxyindole-2-carboxylic Acid and Characterization of the Properties of the Pigments Thereof

open access: yesMolecules, 2022
We report herein an optimized procedure for preparation of carboxamides of 5,6-dihydroxyindole-2-carboxylic acid (DHICA), the main biosynthetic precursor of the skin photoprotective agents melanins, to get access to pigments with more favorable ...
Rita Argenziano   +3 more
doaj   +1 more source

Research on the antiviral activity of water-soluble melanin from the pharmaceutical chaga mushroom (Inonotus obliquus) against influenza А virus subtypes H5N1, H3N2 and H1N1pdm09 in experiments in vitro

open access: yesЖурнал микробиологии, эпидемиологии и иммунобиологии, 2023
Introduction. Influenza A virus is the cause of epidemics and pandemics that severely affect the health and socioeconomic status of the world's population.
Ekaterina I. Filippova   +5 more
doaj   +1 more source

Melanin, melanin "ghosts," and melanin composition in Cryptococcus neoformans [PDF]

open access: yesInfection and Immunity, 1996
Melanin synthesis is associated with virulence for the pathogenic fungus Cryptococcus neoformans. Exposure of nonmelanized C. neoformans 4067 cells to 4 M guanidinium isothiocyanate followed by 6 M HCl at 100 degrees C resulted in complete solubilization of cellular structures. However, exposure of melanized C.
Y, Wang, P, Aisen, A, Casadevall
openaire   +2 more sources

A Melanin-Related Phenolic Polymer with Potent Photoprotective and Antioxidant Activities for Dermo-Cosmetic Applications

open access: yesAntioxidants, 2020
Eumelanins, the dark variant of skin pigments, are endowed with a remarkable antioxidant activity and well-recognized photoprotective properties that have been ascribed to pigment components derived from the biosynthetic precursor 5,6-dihydroxyindole-2 ...
Davide Liberti   +4 more
doaj   +1 more source

Synthesis of L-DOPA Based Melanins with Reproducible Physic-Chemical Properties [PDF]

open access: yes, 2018
This report expands our ongoing research efforts into the non-enzymatic synthesis of melanins. We have explored four different methods for the synthesis of L-DOPA based melanins and evaluated the reproducibility of some of their physic-chemical ...
Jayla, Moore   +3 more
core   +1 more source

Melanin Chemistry and Melanin Precursors in Melanoma

open access: yesJournal of Investigative Dermatology, 1989
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Ito, Shosuke, Wakamatsu, Kazumasa
openaire   +2 more sources

Melanin ‘dust’ or ‘ghost’? [PDF]

open access: yesExperimental Dermatology, 2016
To definitely verify the dogma of ‘melanin dust’ in the stratum corneum, Tobin et al have now reported a careful review of the literature with a vis-à-vis of the Fontana Masson (FM) and Von Kossa (VK) histochemical methods plus the Warthin-Starry (WS) stain on very thin cryosections of normal human skin and mouse pelage skin epidermis lacking ...
D'ISCHIA, MARCO   +3 more
openaire   +5 more sources

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