Results 11 to 20 of about 7,034 (200)

Eumelanin‐Enhanced Photothermal Disinfection of Contact Lenses Using a Sustainable Marine Nanoplatform Engineered with Electrospun Nanofibers

Advanced Healthcare Materials
Bacterial keratitis (BK) is a severe eye infection commonly associated with Staphylococcus aureus (S. aureus), posing a significant risk to vision, especially among contact lens wearers.
Magdalena Bartolewska, Alicja Kosik‐Kozioł, Zbigniew Korwek, Zuzanna J. Krysiak, Devis Montroni, Maciej Mazur, Giuseppe Falini, Filippo Pierini   +7 more
openalex   +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

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

Journal of Molecular Graphics and Modelling, 2020
Melanins are natural pigments with important biological properties and have been considered promising materials for several bio-electronic applications.
Gabriel G. B. Alves, Francisco Carlos Lavarda, Carlos F. O. Graeff, Augusto Batagin‐Neto   +3 more
openalex   +3 more sources

Functionalized melanin for enhanced energy storage in aqueous and ionic liquid electrolytes [PDF]

Communications Chemistry
Eumelanin is an interesting functional material for electrochemical applications due to its quinone/hydroquinone redox equilibrium. One major issue in the eumelanin film processing is the lack of solubility in polar solvents. In this study, the influence
Noah Al-Shamery, Florian Heppner, Carsten Dosche, Simon Morgenschweis, Thomas Bredow, Gunther Wittstock, Pooi See Lee   +6 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
doaj   +2 more sources

Optimization of Bacillus licheniformis MAL tyrosinase: in vitro anticancer activity for brown and black eumelanin

Heliyon, 2019
The influence of tyrosinase in catalyzes/stimulates the eumelanin production was studied. Accordingly, bacterial sp. was isolated and identified as Bacillus licheniformis based on 16S rRNA.
Al Shimaa Gamal Shalaby, Tamer I.M. Ragab, Mohamed M.I. Helal, Mona A. Esawy   +3 more
doaj   +2 more sources

Eumelanin and pheomelanin pigmentation in mollusc shells may be less common than expected: insights from mass spectrometry

Frontiers in Zoology, 2019
Background The geometric patterns that adorn the shells of many phylogenetically disparate molluscan species are comprised of pigments that span the visible spectrum.
Susanne Affenzeller, Klaus Wolkenstein, Holm Frauendorf, Daniel J. Jackson   +3 more
doaj   +2 more sources

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
doaj   +1 more source

Eumelanin Detection in Melanized Focal Changes but Not in Red Focal Changes on Atlantic Salmon (Salmo salar) Fillets

International Journal of Molecular Sciences, 2023
Superficial discolored spots on Atlantic salmon (Salmo salar) fillets are a serious quality problem for commercial seafood farming. Previous reports have proposed that the black spots (called melanized focal changes (MFCs)) may be melanin, but no ...
K. Wakamatsu, Johannes M. Dijkstra, T. Mørkøre, Shosuke Ito   +3 more
semanticscholar   +1 more source