Results 11 to 20 of about 80,543 (306)

Melanin and Light [PDF]

open access: yesChemistry – A European Journal
AbstractMelanin is responsible, in Nature, for photoprotection, for this reason it is expected to be poorly photoreactive. However, the photo‐reactivity of melanin and related materials is well documented. Here we discuss some relevant recent examples to demonstrate that, indeed, the actual mechanism of interaction of melanin with light is complex and ...
Menichetti A., Mordini D., Montalti M.
openaire   +3 more sources

Melanin-like Nanoparticles Boosted the Photoprotective Efficiency and Stability of Sanshool [PDF]

open access: yes, 2023
Sanshool, a naturally occurring molecule from Zanthoxylum xanthoxylum, is an essential component preventing photodamage; however, inherent instabilities and the potential risk of skin permeation limit its further application.
Tianyou Wang (302431)   +17 more
core   +1 more source

Evaluating the “Darkness” of Melanin Materials. [PDF]

open access: yes, 2020
We developed a mathematical process to quantify the apparent darkness of solutions containing melanin-like materials. The visible portion of their UV-Vis spectra is model using an exponential equation.
Koen, Vercruysse
core   +1 more source

Structure Prediction from Melanin Spectra amidst Dynamical Heterogeneity [PDF]

open access: yes, 2023
Melanin is a biopolymer pigment that plays a central role in skin photoprotection. Its extensive chemical and dynamical heterogeneity impart this property through a broad featureless ultraviolet/visible absorption spectrum. Conventionally, the ra- tional
Arpan, Choudhury   +2 more
core   +1 more source

Melanin-concentrating hormone regulates the hypercapnic chemoreflex by acting in the lateral hypothalamic area [PDF]

open access: yes, 2022
   Melanin-concentrating hormone (MCH) is a hypothalamic neuropeptide involved in a broad range of homeostatic functions including regulation of the hypercapnic chemoreflex.
Luciane Gargaglioni (8795369)   +3 more
core   +1 more source

SPECTRAL PROPERTIES OF TWO WATER-SOLUBLE MELANINS [PDF]

open access: yesBiotechnologia Acta
Aim. The work was purposed to study the spectral properties of two types of water-soluble melanins to clarify the nature of the optical absorption and emission centers in them. Materials and methods.
V.M. Kravchenko   +8 more
doaj   +1 more source

Identification of fungal melanin production and the role of anti-melanin agents

open access: yesPakistan Journal of Pharmaceutical Sciences, 2023
Accumulation of melanin pigment in some specific areas of human skin leads to various skin disorders. This study includes melanin production and extraction from non-dermatophyte, filamentous fungi (Aspergillus niger).
Saba Iqbal, Fatima Ismail
doaj   +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 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 photoprotection as well as in many biological functions ensuring homeostasis.
Chiara Cavallini   +9 more
openaire   +5 more sources

Melanin Promotes Spore Production in the Rice Blast Fungus Magnaporthe oryzae

open access: yesFrontiers in Microbiology, 2022
The rice blast pathogen, Magnaporthe oryzae, spreads through spores and invades rice through appressoria. Melanin is necessary for an appressorium to penetrate plant cells, but there are many unknown aspects of its role in fungal conidiation.
Pengyun Huang   +9 more
doaj   +1 more source

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