Results 1 to 10 of about 4,030 (134)

Evidence of Unprecedented High Electronic Conductivity in Mammalian Pigment Based Eumelanin Thin Films After Thermal Annealing in Vacuum

Frontiers in Chemistry, 2019
Melanin denotes a variety of mammalian pigments, including the dark electrically conductive eumelanin and the reddish, sulfur-containing, pheomelanin.
Ludovico Migliaccio, Paola Manini, Davide Altamura, Cinzia Giannini, Paolo Tassini, Maria Grazia Maglione, Carla Minarini, Alessandro Pezzella   +7 more
doaj   +3 more sources

Edible Fungi Melanin: Recent Advances in Extraction, Characterization, Biological Activity and Applications [PDF]

Journal of Fungi
Natural melanin biopolymers exhibit a variety of biological activities, but their commercial development is constrained by numerous factors, including high costs, unsustainable sources, the use of harmful solvents during extraction, and low extraction ...
Jiandong Tang, Hebin Shen, Wenyu Lv, Jingxuan Zhang, Junsheng Fu   +4 more
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Investigation of Eumelanin Biosynthesis in Gluconacetobacter tumulisoli FBFS 97: A Novel Insight into a Bacterial Melanin Producer [PDF]

Microorganisms
Acetic acid bacteria (AAB) are a group of bacteria, most of which can produce pigments. However, the mechanism of pigment production by AAB is unclear.
Jiayun Song, Yanqin Ma, Zhenzhen Xie, Fusheng Chen   +3 more
doaj   +2 more sources

In Vitro Osteogenic Stimulation of Human Adipose-Derived MSCs on Biofunctional 3D-Printed Scaffolds [PDF]

Biomedicines
Background: Human adipose-derived mesenchymal stem cells (hADMSCs) are widely used in regenerative medicine due to their ability to proliferate and differentiate.
Serena Munaò, Ugo D’Amora, Luana Vittoria Bauso, Alfredo Ronca, Paola Manini, Alessandro Pezzella, Maria Grazia Raucci, Luigi Ambrosio, Giovanna Calabrese   +8 more
doaj   +2 more sources

A newly isolated Streptomyces nigra strain for the biotechnological production of melanin [PDF]

Applied Microbiology and Biotechnology
Melanins are pigments widely distributed in microbial, plant, and animal kingdoms. Their UV–visible light shielding capacity, metal chelation ability, antioxidant, and antimicrobial properties make these pigments suitable for different industrial ...
Donatella Cimini, Sergio D’ambrosio, Odile Francesca Restaino, Talayeh Kordjazi, Claudio Gervasi, Martina Aulitto, Islam Sayah, Paola Manini, Matilde Tancredi, Riccardo Peluso, Giuseppina Mandalari, Teresa Gervasi   +11 more
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Structural Investigation of DHICA Eumelanin Using Density Functional Theory and Classical Molecular Dynamics Simulations

Molecules, 2022
Eumelanin is an important pigment, for example, in skin, hair, eyes, and the inner ear. It is a highly heterogeneous polymer with 5,6-dihydroxyindole-2-carboxylic acid (DHICA) and 5,6-dihydroxyindole (DHI) building blocks, of which DHICA is reported as ...
Sepideh Soltani, Shahin Sowlati-Hashjin, Conrard Giresse Tetsassi Feugmo, Mikko Karttunen   +3 more
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Differential Induction of Reactive Oxygen Species and Expression of Antioxidant Enzymes in Human Melanocytes Correlate with Melanin Content: Implications on the Response to Solar UV and Melanoma Susceptibility

Antioxidants, 2022
Constitutive pigmentation determines the response to sun exposure and the risk for melanoma, an oxidative stress–driven tumor. Using primary cultures of human melanocytes, we compared the effects of constitutive pigmentation on their antioxidant response
Parth R. Upadhyay, Renny J. Starner, Viki B. Swope, Kazumasa Wakamatsu, Shosuke Ito, Zalfa A. Abdel-Malek   +5 more
doaj   +1 more source

Spiny mice modulate eumelanin to pheomelanin ratio to achieve cryptic coloration in "evolution canyon," Israel. [PDF]

PLoS ONE, 2010
Coat coloration in mammals is an explicit adaptation through natural selection. Camouflaging with the environment is the foremost evolutionary drive in explaining overall coloration. Decades of enquiries on this topic have been limited to repetitive coat
Natarajan Singaravelan, Tomas Pavlicek, Alex Beharav, Kazumasa Wakamatsu, Shosuke Ito, Eviatar Nevo   +5 more
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Eumelanin‐Coated Aligned PLA Electrospun Microfibers to Guide SH‐SY5YCells Spreading, Alignment, And Maturation

Advanced Materials Interfaces, 2023
During the development of the nervous system, neurons sense and respond to topographical and biochemical cues found in the brain's native environment.
Anna Mariano, Ines Fasolino, Nikita Bhupesh Dinger, Claudia Latte Bovio, Irene Bonadies, Alessandro Pezzella, Luigi Ambrosio, Maria Grazia Raucci, Francesca Santoro   +8 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