Results 41 to 50 of about 732 (165)
Chloroquine and hydroxychloroquine binding to melanin: Some possible consequences for pathologies
Toxicology Reports, 2014 For many years chloroquine was used as a prophylactic agent against malaria, and more recently as a mild immunosuppressive. However, due to lengthy treatment periods, adverse effects have become apparent, which included retinopathy.
R.L. Schroeder, J.P. Gerber
doaj +1 more source
Printability and Electrical Response of the Sepia Melanin Bio-Pigment on Paper for Sustainable Printed Electronics [PDF]
, 2023 RÉSUMÉ: Mots clés: Biopigment, électronique organique imprimée, développement durable, encre biosourcée, Sépia melanine. Les matériaux électroniques organiques représentent un intérêt pour le développement de technologies durables dans les domaines de l’
Bour, Camille
core
PLoS ONE, 2019 Eumelanin and pheomelanin are well known and common pigments found in nature. However, their complex polymer structure and high thermostability complicate their direct chemical identification.
Susanne Affenzeller +4 more
doaj +1 more source
Biosynthesis and Characterization of Melanin Extracted From Solanum tuberosum and Mucuna deeringiana
Journal 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
Food 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
Functional 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
Ecology 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
ChemSusChem, 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
EFSA 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
Macromolecular 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