Results 21 to 30 of about 15,215 (310)

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

Fungal Melanin and the Mammalian Immune System

open access: yesJournal of Fungi, 2021
Melanins are ubiquitous complex polymers that are commonly known in humans to cause pigmentation of our skin. Melanins are also present in bacteria, fungi, and helminths.
Sichen Liu   +3 more
doaj   +1 more source

Melanin Chemistry and Melanin Precursors in Melanoma

open access: yesJournal of Investigative Dermatology, 1989
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Kazumasa Wakamatsu, Shosuke Ito
openaire   +3 more sources

Melanin from the nitrogen-fixing bacterium Azotobacter chroococcum: a spectroscopic characterization. [PDF]

open access: yesPLoS ONE, 2014
Melanins, the ubiquitous hetero-polymer pigments found widely dispersed among various life forms, are usually dark brown/black in colour. Although melanins have variety of biological functions, including protection against ultraviolet radiation of ...
Aulie Banerjee   +2 more
doaj   +1 more source

Genetic and Environmental Factors Influencing the Production of Select Fungal Colorants: Challenges and Opportunities in Industrial Applications

open access: yesJournal of Fungi, 2023
Natural colorants, mostly of plant and fungal origins, offer advantages over chemically synthetic colorants in terms of alleviating environmental pollution and promoting human health.
Lan Lin, Tong Zhang, Jianping Xu
doaj   +1 more source

Melanisation in Boreal Lichens Is Accompanied by Variable Changes in Non-Photochemical Quenching

open access: yesPlants, 2022
Lichens often grow in microhabitats where they absorb more light than they can use for fixing carbon, and this excess energy can cause the formation of harmful reactive oxygen species (ROS).
Nqobile Truelove Ndhlovu   +3 more
doaj   +1 more source

Production of Melanins With Recombinant Microorganisms

open access: yesFrontiers in Bioengineering and Biotechnology, 2019
The melanins constitute a diverse group of natural products found in most organisms, having functions related to protection against chemical and physical stresses.
Luz María Martínez   +2 more
doaj   +1 more source

The interplay of chemical structure, physical properties, and structural design as a tool to modulate the properties of melanins within mesopores

open access: yesScientific Reports, 2022
The design of modern devices that can fulfil the requirements for sustainability and renewable energy applications calls for both new materials and a better understanding of the mixing of existing materials.
Alessandro Pira   +6 more
doaj   +1 more source

The First Homozygote Mutation c.499G>T (Asp167Tyr) in the RPE65 Gene Encoding Retinoid Isomerohydrolase Causing Retinal Dystrophy

open access: yesCurrent Issues in Molecular Biology, 2022
RPE65, an abundant membrane-associated protein present in the retinal pigment epithelium (RPE), is a vital retinoid isomerase necessary for regenerating 11-cis-retinaldehyde from all-trans retinol in the visual cycle.
Mirjana Bjeloš   +4 more
doaj   +1 more source

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   +6 more sources

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