Results 31 to 40 of about 5,651 (158)

Effect of Melanization on Thallus Microstructure in the Lichen Lobaria pulmonaria

open access: yesJournal of Fungi, 2022
Lichens often grow in microhabitats where they experience severe abiotic stresses. Some species respond to high UV radiation by synthesizing dark brown melanic pigments in the upper cortex. However, unlike the melanized structures of non-lichenized fungi,
Amina G. Daminova   +4 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

A Comprehensive Review of Mammalian Pigmentation: Paving the Way for Innovative Hair Colour-Changing Cosmetics

open access: yesBiology, 2023
The natural colour of hair shafts is formed at the bulb of hair follicles, and it is coupled to the hair growth cycle. Three critical processes must happen for efficient pigmentation: (1) melanosome biogenesis in neural crest-derived melanocytes, (2) the
Bruno Fernandes   +2 more
doaj   +1 more source

Photodynamics of Melanin Radicals: Contribution to Photoprotection by Melanin

open access: yesPhotochemistry and Photobiology, 2022
AbstractThe mechanism of very efficient relaxation of the melanin‐photoexcited states, responsible for the photoprotective action of the pigment, remains a subject for intense investigation. The most recent study by C. Grieco, F. Kohl, and B. Kohler, entitled “Ultrafast radical photogeneration pathways in eumelanin,” addresses key issues of melanin ...
openaire   +3 more sources

Melanins as Sustainable Resources for Advanced Biotechnological Applications

open access: yesGlobal Challenges, 2021
Melanins are a class of biopolymers that are widespread in nature and have diverse origins, chemical compositions, and functions. Their chemical, electrical, optical, and paramagnetic properties offer opportunities for applications in materials science ...
Hanaa A. Galeb   +8 more
doaj   +1 more source

Studying grain color diversity in the barley collection of VIR

open access: yesТруды по прикладной ботанике, генетике и селекции, 2022
Background. Dark color of barley grain (Hordeum vulgare L.) can be caused by the synthesis and accumulation of two types of polyphenolic pigments – anthocyanins and melanins, which perform important functions in plant life, participating in the ...
A. Y. Glagoleva   +4 more
doaj   +1 more source

Ultraviolet radiation and melanogenesis [PDF]

open access: yesArchive of Oncology, 2004
Light radiation is a part of the electromagnetic radiation, and it consists of the ultraviolet (UV) radiation, visible light, and infrared radiation.
Stanojević Milenko R.   +3 more
doaj   +1 more source

Solubility of Melanins [PDF]

open access: yesNature, 1952
IN further attempts to find a solvent for melanin which would be of use in histological work, the following substances have been found to dissolve, in the cold, the pigments extracted from the ink sac of Sepia officinalis and melanoma tissue, and those prepared from adrenaline and 3,4-dihydroxyphenylalanine (dopa): ethylene glycol monomethyl ether ...
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

Melanins of Inonotus Obliquus: Bifidogenic and Antioxidant Properties

open access: yesBiomolecules, 2019
Extracts and melanins from Inonotus obliquus are widely used in medicine due to their high antioxidant properties. This study is dedicated to define the influence of the physicochemical and antioxidant properties of Inonotus obliquus melanins and their ...
Marina A. Burmasova   +3 more
doaj   +1 more source

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