Results 41 to 50 of about 577 (133)

Biological Evaluation and Molecular Docking Study of Ferrociphenol as an Antimelanogenic Agent

open access: yesBiochemistry Research International, Volume 2026, Issue 1, 2026.
Cutaneous hyperpigmentation disorders are associated with abnormal accumulation of melanin pigments, which can be treated using depigmenting agents. In the present study, we investigated the effect of ferrociphenol (Fc‐diOH), an organometallic intermediate used in the synthesis of hydroxy‐ferrocifen derivatives and previously reported as a tyrosinase ...
Emna Ketata   +10 more
wiley   +1 more source

Biosynthesis and Characterization of Melanin Extracted From Solanum tuberosum and Mucuna deeringiana

open access: yesJournal of Chemistry, Volume 2026, Issue 1, 2026.
A growing interest in finding accessible and low‐cost sources of melanin has emerged due to its wide range of applications. This work demonstrated the use of Mucuna deeringiana as a source of L‐DOPA, and Solanum tuberosum of tyrosinase in eumelanin biosynthesis.
Andrés Alvarez   +6 more
wiley   +1 more source

Natural Melanin From Silky Fowl (Gallus gallus domesticus Brisson): Characterization and Protection of Caco‐2 Cells From Oxidative Stress via the Akt/Nrf2 Pathway

open access: yesFood Frontiers, Volume 6, Issue 6, Page 3059-3075, November 2025.
(created with BioRender.com) ABSTRACT Silky fowl, a unique chicken breed, exhibits black skin, meat, and bones due to the presence of natural melanin pigments. In our study, melanin from silky fowl (MSF) was isolated using an enzymatic extraction procedure and identified as a unique natural antioxidant.
Chunhui Xu   +5 more
wiley   +1 more source

Bacterial and fungal growth on fungal necromass and its diverse components: Shared profiles and divergent constraints revealed by high‐throughput phenotyping

open access: yesFunctional Ecology, Volume 39, Issue 9, Page 2268-2283, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract While fungal necromass is increasingly recognized as a major source of persistent carbon (C) in soils, the relative functional roles of bacteria and fungi in decomposing necromass are not fully resolved, and the processes that select for necromass decomposer communities
Achala Narayanan   +7 more
wiley   +1 more source

The Role of Pigments in Light Color Variation of the Firefly Photinus pyralis

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
We tested the novel hypothesis that genes encoding enzymes and transporters in pigment pathways (“pigment genes”) produce pigments in the firefly light organ that filter bioluminescent light, tuning the color of emitted light signals to match visual sensitivity. We detected the gene expression of 46 ommochrome and pterin pigment genes in P.
M. S. Popecki   +5 more
wiley   +1 more source

Green Electrochemical Point‐of‐Care Devices: Transient Materials and Sustainable Fabrication Methods

open access: yesChemSusChem, Volume 18, Issue 7, April 1, 2025.
The deployment of point‐of‐care diagnosis may lead to sustainability concerns due to the complex management of generated waste. This review examines transient materials and printing technologies to enhance the sustainability of electrochemical point‐of‐care devices, providing examples of components incorporating transient materials for eco‐friendly ...
David Batet, Gemma Gabriel
wiley   +1 more source

Update of the risk assessment of brominated phenols and their derivatives in food

open access: yesEFSA Journal, Volume 22, Issue 10, October 2024.
Abstract The European Commission asked EFSA to update its 2012 risk assessment on brominated phenols and their derivatives in food, focusing on five bromophenols and one derivative: 2,4,6‐tribromophenol (2,4,6‐TBP), 2,4‐dibromophenol (2,4‐DBP), 4‐bromophenol (4‐BP), 2,6‐dibromophenol (2,6‐DBP), tetrabrominated bisphenol S (TBBPS), tetrabromobisphenol S
EFSA Panel on Contaminants in the Food Chain (CONTAM)   +29 more
wiley   +1 more source

Accelerating Wound Healing with Combinatorial Therapy Using Natural Melanin Nanoparticle‐Polyvinyl Alcohol Blend and Core‐Sheath Hybrid Nanofibers under UV‐A Irradiation

open access: yesMacromolecular Materials and Engineering, Volume 309, Issue 5, May 2024.
Nanoparticle‐nanofiber hybrid systems comprised of melanin nanoparticles (MNPs) and polyvinyl alcohol (PVA), are fabricated through co‐electrospinning, and demonstrate potent antibacterial effects using photodynamic therapy. Upon exposure to UV‐A radiation, MNP‐PVA blend and core‐sheath nanofibers exhibits antibacterial activity against E. coli.
Emirhan Bayrak   +6 more
wiley   +1 more source

Single‐cell profiling of MC1R‐inhibited melanocytes

open access: yesPigment Cell &Melanoma Research, Volume 37, Issue 2, Page 291-308, March 2024.
Research Highlights Single‐cell RNAseq of MC1R‐inhibited melanocytes elucidates a set of differentially expressed genes with no previous ties to pigmentation or melanocyte biology. This list includes Tbx3 which we show binds to T‐ and E‐boxes of candidate target genes, including those with known roles in pigmentation. Abstract The human red hair color (
H. Matthew Berns   +8 more
wiley   +1 more source

Melanin Zinc Complex as a Biocompatible Agent for Clearing Bacteremia

open access: yesAdvanced Materials Interfaces, Volume 11, Issue 5, February 13, 2024.
Sepsis is whole‐body inflammation caused by the contamination of blood by bacteria and endotoxins. This study is to investigate the capability of eumelanin pigment to remove bacteria or endotoxins from the whole blood. The natural origin of melanin and its well‐documented biocompatibility makes it an ideal material to interface with human blood, which ...
Tahmineh Rahmani Eliato   +5 more
wiley   +1 more source

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