Results 41 to 50 of about 12,369 (282)

Oxidative physiology is weakly associated with pigmentation in birds

Ecology and Evolution, 2022
The mechanistic link between avian oxidative physiology and plumage coloration has attracted considerable attention in past decades. Hence, multiple proximal hypotheses were proposed to explain how oxidative state might covary with the production of ...
Attila Marton, Csongor I. Vágási, Orsolya Vincze, Veronika Bókony, Péter L. Pap, Laura Pătraș, Janka Pénzes, Lőrinc Bărbos, Attila Fülöp, Gergely Osváth, Simon Ducatez, Mathieu Giraudeau   +11 more
doaj   +1 more source

Could eumelanin molecule from Streptomyces parvus BSB49 strain be a potential anticancer agent for lung cancer?

Medicine Science, 2023
Melanins, which are divided into five different subgroups as eumelanin, pheomelanin, allomelanin, neuromelanin and pyomelanin, are a heterogeneous and amorphous biopolymer family.
Hamit Emre Kizil, Sinan Bayram, Serdar Ozturk, Umit Karakas   +3 more
doaj   +1 more source

5,6‐Dihydroxyindole eumelanin content in human skin with varying degrees of constitutive pigmentation

Pigment Cell & Melanoma Research, 2022
Human skin contains two distinct components: brown to black, insoluble eumelanin and light colored, alkaline‐soluble pheomelanin. Eumelanin consists of 5,6‐dihydroxyindole (DHI) and 5,6‐dihydroxyindole‐2‐carboxylic acid (DHICA) moieties, while ...
S. D. Bino, S. Ito, J. Sok, K. Wakamatsu
semanticscholar   +1 more source

Reactivity of eumelanin building blocks: A DFT study of monomers and dimers

Journal of Molecular Graphics and Modelling, 2020
Gabriel G. B. Alves, Francisco Carlos Lavarda, Carlos F. O. Graeff, Augusto Batagin‐Neto   +3 more
openalex   +3 more sources

Eumelanin from the Black Soldier Fly as Sustainable Biomaterial: Characterisation and Functional Benefits in Tissue-Engineered Composite Scaffolds

Biomedicines, 2022
An optimized extraction protocol for eumelanins from black soldier flies (BSF-Eumel) allows an in-depth study of natural eumelanin pigments, which are a valuable tool for the design and fabrication of sustainable scaffolds.
U. D’Amora, Alessandra Soriente, A. Ronca, S. Scialla, Martina Perrella, P. Manini, Jun Wei Phua, Christoph Ottenheim, Rocco di Girolamo, A. Pezzella, M. Raucci, L. Ambrosio   +11 more
semanticscholar   +1 more source

¹⁵N NMR Shifts of Eumelanin Building Blocks in Water: A Combined Quantum Mechanics/Statistical Mechanics Approach

Molecules, 2020
Theoretical results for the magnetic shielding of protonated and unprotonated nitrogens of eumelanin building blocks including monomers, dimers, and tetramers in gas phase and water are presented. The magnetic property in water was determined by carrying
Leonardo Bruno Assis Oliveira, Tertius L. Fonseca, Benedito J. C. Cabral   +2 more
doaj   +1 more source

Bioactive Composite Methacrylated Gellan Gum for 3D-Printed Bone Tissue-Engineered Scaffolds

Nanomaterials, 2023
Gellan gum (GG) was chemically modified with methacrylic moieties to produce a photocrosslinkable biomaterial ink, hereinafter called methacrylated GG (GGMA), with improved physico-chemical properties, mechanical behavior and stability under ...
Ugo D’Amora, Alfredo Ronca, Stefania Scialla, Alessandra Soriente, Paola Manini, Jun Wei Phua, Christoph Ottenheim, Alessandro Pezzella, Giovanna Calabrese, Maria Grazia Raucci, Luigi Ambrosio   +10 more
doaj   +1 more source

Differential antifungal activity of human and cryptococcal melanins with structural discrepancies [PDF]

, 2017
Indexación: Scopus.Melanin is a pigment found in all biological kingdoms, and plays a key role in protection against ultraviolet radiation, oxidizing agents, and ionizing radiation damage. Melanin exerts an antimicrobial activity against bacteria, fungi,
Correa, N., Covarrubias, C., Hermosilla, G., Magne, F., Meyer, W., Olate, V.R., Rodas, P.I., Tapia, C.V., Valdés, C.   +8 more
core   +1 more source

Splenic eumelanin differs from hair eumelanin in C57BL/6 mice.

Acta Biochimica Polonica, 2005
The presence of melanin in spleens of black C57BL/6 mice has been known for long. Although its origin and biological functions are still obscure, the relation of splenic melanin to the hair follicle and skin pigmentation was suggested. Here, we demonstrated using for the first time electron paramagnetic resonance spectroscopy that black-spotted C57BL/6
Płonka, Przemysław, Michalczyk-Wetula, Dominika, Popik, Małgorzata, Handjiski, Bori, Slominski, Andrzej, Paus, Ralf   +5 more
openaire   +4 more sources

Variação intraespecífica da cor da pelagem de uma espécie de pequeno roedor sul-americano [PDF]

, 2016
Intra-specific color variation is often underestimated by researchers, and among mammalian species, intra-specific differences in coloration are poorly documented for most species.
Barquez, Ruben Marcos, Colombo, Elisa Margarita, Sandoval Salinas, Maria Leonor, Sandoval, Jose Domingo   +3 more
core   +2 more sources