Results 81 to 90 of about 80,218 (306)
Microbial Cell FactoriesOwing to the growing need for natural materials in different fields, studying melanin production from biological sources is imperative. In the current study, the extracellular melanin pigment was produced by the fungus Curvularia soli AS21 ON076460.
Amira S. Abd-EL-Aziz +3 more
doaj +1 more source
A Mononuclear Scenario for the Copper‐Catalyzed Monooxygenation of Phenolic Substrates
Chemistry – A European Journal, EarlyView.ABSTRACT Whereas a dinuclear pathway applies to the monooxygenation of phenols by the type 3 copper enzyme tyrosinase, a mononuclear pathway has been identified for the same reaction in corresponding small‐molecule systems. DFT calculations of five copper model complexes reveal that the latter mechanism is energetically feasible, identifying all ...
Alexander Koch +3 more
wiley +1 more source
PLoS ONE, 2007 BackgroundMelanin pigments are ubiquitous in nature. Melanized microorganisms are often the dominating species in certain extreme environments, such as soils contaminated with radionuclides, suggesting that the presence of melanin is beneficial in their ...
Ekaterina Dadachova +7 more
doaj +1 more source
Electrochemical synthesis of melanin-like polyindolequinone
, 2006 Conducting polymer is a rapidly developing area of research due to its potential in combining the physical properties of polymers with electrical properties previously found only in inorganic systems. These conducting polymers owe their unique properties
Subianto, Surya
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Fluorescent quantification of melanin [PDF]
, 2016 Melanin quantification is reportedly performed by absorption spectroscopy, commonly at 405 nm. Here, we propose the implementation of fluorescence spectroscopy for melanin assessment.
Gomes, Andreia C +4 more
core +1 more source
Photothermal bubble: Dynamics, manipulation, and applications
Droplet, EarlyView.As a versatile platform for bubble manipulation, photothermal techniques empower diverse operations: planar translation by scanning the laser spot, sustained periodic bouncing from competing thermal and hydrodynamic flows, and even guided 3D trajectories achieved by tailoring the heating configuration.
Man Hu, Feng Wang, Daosheng Deng
wiley +1 more source
Segmental Hair Analysis of Diphenhydramine and Cyclizine Following a Single Dose
Drug Testing and Analysis, EarlyView.A single oral dose of diphenhydramine and cyclizine can be quantified in human head hair for a minimum of 5 months and, in certain cases, for up to 1 year following intake. Among 12 study participants, the measured concentrations ranged from 0 to 610 pg/mg within 1 year post‐intake.
Jan Bílek +3 more
wiley +1 more source
Frontiers in MicrobiologyFomes fomentarius and Daedaleopsis tricolor produced significant amounts of water-insoluble melanins, and our previous study successfully enhanced their water solubility by arginine modification.
Tu N. Le +5 more
doaj +1 more source
Melanin particles isolated from the fungus Fonsecaea pedrosoi activates the human complement system
Memorias do Instituto Oswaldo Cruz, 2018 BACKGROUND Melanin production has been associated with virulence in various pathogenic fungi, including Fonsecaea pedrosoi, the major etiological agent for chromoblastomycosis, a subcutaneous fungal disease that occurs in South America.
Lysianne Pinto +7 more
doaj +1 more source
The role of melanin production in the survival of Vibrio cholerae in the marine environment
, 2006 Word processed copy.Includes bibliographical references (p. 141-165).The marine bacterium Vibrio cholerae produces pyomelanin through the catabolism of L-tyrosine to homogentisic acid.
Paul, Lynthia Vivienne
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