Results 71 to 80 of about 12,369 (282)

Shedding light on melanins within in situ human eye melanocytes using 2-photon microscopy profiling techniques. [PDF]

open access: yes, 2019
Choroidal melanocytes (HCMs) are melanin-producing cells in the vascular uvea of the human eye (iris, ciliary body and choroid). These cranial neural crest-derived cells migrate to populate a mesodermal microenvironment, and display cellular functions ...
Cherepanoff, Svetlana   +6 more
core  

Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak

open access: yesAnimal Research and One Health, EarlyView.
Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan   +15 more
wiley   +1 more source

Melanin-Based Coatings as Lead-Binding Agents

open access: yesBioinorganic Chemistry and Applications, 2012
Interactions between metal ions and different forms of melanin play significant roles in melanin biochemistry. The binding properties of natural melanin and related synthetic materials can be exploited for nonbiological applications, potentially ...
Karin Sono   +5 more
doaj   +1 more source

Bird Integumentary Melanins: Biosynthesis, Forms, Function and Evolution [PDF]

open access: yes, 2016
Melanins are the ubiquitous pigments distributed in nature. They are one of the main pigments responsible for colors in living cells. Birds are among the most diverse animals regarding melanin-based coloration, especially in the plumage, although they ...
Agrup   +40 more
core   +2 more sources

Unraveling Eumelanin Radical Formation by Nanodiamond Optical Relaxometry in a Living Cell

open access: yesJournal of the American Chemical Society
Defect centers in a nanodiamond (ND) allow the detection of tiny magnetic fields in their direct surroundings, rendering them as an emerging tool for nanoscale sensing applications.
Qi Lu   +12 more
semanticscholar   +1 more source

Bacterial Pigments as Potential Antitumor Agents Against Gastrointestinal Cancers: A Comprehensive Systematic Review

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Gastrointestinal cancers (GICs) constitute one of the leading causes of cancer‐related morbidity and mortality worldwide. Despite currently available therapeutic strategies, new approaches and procedures are needed for their prevention and treatment.
Raúl Vergara   +5 more
wiley   +1 more source

Exploring the chemistry and composition of black soldier fly eumelanin, a material for a circular economy

open access: yesMaterials Advances
Demonstrated is the first example of dihydroxyindole carboxylic acid presence within an insect eumelanin, a conductive biomaterial material for the circular economy.
A. B. Mostert   +13 more
semanticscholar   +1 more source

Solvochromic Effects in Model Eumelanin Compounds

open access: yesPhotochemistry and Photobiology, 2008
ABSTRACTWe have created an indolic compound which is ideally suited to the study of the relationship between structure and function in eumelanin formation. N‐methyl‐5‐hydroxy‐6‐methoxyindole (MHMI) is stable in solid and liquid states, highly soluble in a variety of solvents and forms a dimer only through the 4‐4′ positions.
Nighswander-Rempel, Stephen P.   +4 more
openaire   +4 more sources

High‐Performance Solar‐Thermal Hydrogel Based on Waste Biomass Materials for Power Generation and Water Purification

open access: yesEcoEnergy, EarlyView.
An environmentally friendly and highly efficient solar evaporator was constructed using waste biomass materials and polyvinyl alcohol carrier, which achieves an outstanding evaporation rate of 1.48 kg m−2 h−1, corresponding to an energy conversion efficiency of 82.49% under 1.0 kW m−2 simulated sunlight irradiation.
Shuo Qi   +10 more
wiley   +1 more source

Exploring the optical properties of metal-modified melanin following ultraviolet irradiation: An experimental and theoretical study using density functional theory

open access: yesHeliyon
Melanin has an important function to protect humans from sunlight because of its broad spectrum of light absorption. This characteristic varies according to the nature of absorption and the amount of melanin manufactured.
Nawal Madkhali, Saja Algessair
doaj   +1 more source

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