Results 1 to 10 of about 7,034 (200)

Investigation of Eumelanin Biosynthesis in Gluconacetobacter tumulisoli FBFS 97: A Novel Insight into a Bacterial Melanin Producer [PDF]

open access: yesMicroorganisms
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   +3 more
doaj   +3 more sources

Preparation of Eumelanin-Encapsulated Stereocomplex Polylactide Nano/Microparticles for Degradable Biocompatible UV-Shielding Products [PDF]

open access: goldNanomaterials and Nanotechnology, 2023
The role of eumelanin as a natural pigment in protecting human skin from ultraviolet (UV) light has drawn vast interest in the research and industrial community.
Oceu Dwi Putri   +9 more
doaj   +2 more sources

Structural Investigation of DHICA Eumelanin Using Density Functional Theory and Classical Molecular Dynamics Simulations [PDF]

open access: goldMolecules, 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   +3 more
doaj   +2 more sources

Colored Surfaces Made of Synthetic Eumelanin [PDF]

open access: goldNanomaterials, 2021
The polymerization of 3,4-dihydroxy-L-phenylalanine leads to a carboxylic acid-rich synthetic melanin-like material (poly-L-DOPA). Synthetic melanin most resembles natural eumelanin in chemical structure.
Gema Marcelo   +3 more
doaj   +2 more sources

Electron diffraction and solid-state NMR reveal the structure and exciton coupling in a eumelanin precursor

open access: diamondChemical Science
Eumelanin, a versatile biomaterial found throughout the animal kingdom, performs essential functions like photoprotection and radical scavenging. The diverse properties of eumelanin are attributed to its elusive and heterogenous structure with DHI (5,6 ...
Kavya Vinod   +4 more
openalex   +3 more sources

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

open access: yesFrontiers in Chemistry, 2019
Melanin denotes a variety of mammalian pigments, including the dark electrically conductive eumelanin and the reddish, sulfur-containing, pheomelanin.
Ludovico Migliaccio   +7 more
doaj   +2 more sources

Biomimetic manganese-eumelanin nanocomposites for combined hyperthermia-immunotherapy against prostate cancer [PDF]

open access: goldJournal of Nanobiotechnology, 2022
Pro-tumoral and immunosuppressive M2-like tumor-associated macrophages (TAMs) contribute to tumor progression, recurrence and distal metastasis. However, current TAMs-modulating therapeutic strategies often encounter challenges including insufficient ...
Yu Liu   +9 more
openalex   +2 more sources

MC1R: Front and Center in the Bright Side of Dark Eumelanin and DNA Repair [PDF]

open access: goldInternational Journal of Molecular Sciences, 2018
Melanin, the pigment produced by specialized cells, melanocytes, is responsible for skin and hair color. Skin pigmentation is an important protective mechanism against the DNA damaging and mutagenic effects of solar ultraviolet radiation (UV).
Viki B. Swope, Zalfa Abdel‐Malek
openalex   +2 more sources

Identification of L-Cysteinamide as a Potent Inhibitor of Tyrosinase-Mediated Dopachrome Formation and Eumelanin Synthesis

open access: yesAntioxidants, 2021
The purpose of this study is to identify amino acid derivatives with potent anti-eumelanogenic activity. First, we compared the effects of twenty different amidated amino acids on tyrosinase (TYR)-mediated dopachrome formation in vitro and melanin ...
Hyun Kyung Lee   +3 more
doaj   +2 more sources

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

open access: yesJournal 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   +4 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy