Characterization of Fungal Melanins from Black Stains on Paper Artefacts [PDF]
Heritage, 2022 Melanins play a fundamental role in the biology and ecology of several fungal species. Unfortunately, this group of amorphous macromolecules also severely (and most times irreversibly) stains cultural heritage objects. Despite efforts made throughout the
Daniela Melo +4 more
doaj +2 more sources
Physico-chemical evaluation of rationally designed melanins as novel nature-inspired radioprotectors. [PDF]
PLoS ONE, 2009 Melanin, a high-molecular weight pigment that is ubiquitous in nature, protects melanized microorganisms against high doses of ionizing radiation. However, the physics of melanin interaction with ionizing radiation is unknown.We rationally designed ...
Andrew D Schweitzer +9 more
doaj +2 more sources
A histochemical assay for polyphenolic profiling in cereal grains [PDF]
Вавиловский журнал генетики и селекцииIn different cell layers, cereal grains may accumulate various economically important polyphenols such as colored anthocyanins and melanins and colorless proanthocyanidins.
S. R. Mursalimov, O. Yu. Shoeva
doaj +2 more sources
Antioxidant, neuroprotective, and neuroblastoma cells (SH-SY5Y) differentiation effects of melanins and arginine-modified melanins from Daedaleopsis tricolor and Fomes fomentarius [PDF]
BMC BiotechnologyBackground Microbial melanins possess a broad spectrum of biological activities. However, there is little understanding of their neuroprotective and neuronal cell differentiation properties.
Hoang Anh Thu Nguyen +5 more
doaj +2 more sources
Neuroprotective effects of melanins and melanin derivatives from Calvatia Craniiformis and Xylaria plebeja against Parkinsonian toxins [PDF]
Scientific ReportsFungal melanins have remarkable bioactivities, but their practical applications are limited, partly due to their hydrophobic nature. Melanin modification with amino acids was reported to improve their water solubility. This research aimed to extract, and
Duong Thuy Nguyen +5 more
doaj +2 more sources
Synthesis and characterization of allomelanin model from 1,8-dihydroxynaphthalene autooxidation [PDF]
Scientific ReportsIn this work a novel method for synthesis of 1,8-dihydroxynaphthalene melanin was presented, as well as the physicochemical properties, molecular structure, and characteristics of the pigment.
Jan Pukalski +6 more
doaj +2 more sources
Melanin and Melanin-Like Hybrid Materials in Regenerative Medicine [PDF]
Nanomaterials, 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
Analysis of Interactions Between Pyomelanin and the Extracellular Matrix in an Ex Vivo Turkey Tendon Model [PDF]
ChemistryOpenMelanins are conjugated biopolymers with varying compositions and functions, found in various tissues throughout the body. Here, the conjugated polymers derived from homogentisic acid (HGA), polyHGA (a simplified model of pyomelanin), formed in an ex ...
Rebecca F. Shepherd +11 more
doaj +2 more sources
Current 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 +3 more sources
Melanin, melanin "ghosts," and melanin composition in Cryptococcus neoformans [PDF]
Infection 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