Results 51 to 60 of about 1,443 (177)

Eumelanin Graphene-Like Integration: The Impact on Physical Properties and Electrical Conductivity [PDF]

, 2019
The recent development of eumelanin pigment-based blends integrating "classical" organic conducting materials is expanding the scope of eumelanin in bioelectronics.
Alfe, M., De Luca, G. M., Di Capua, R., Gargiulo, V., Mali, G., Pezzella, A., Skala, T.   +6 more
core   +2 more sources

Quantitation of eumelanin and pheomelanin markers in diverse biological samples by HPLC-UV-MS following solid-phase extraction.

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, Holm Frauendorf, Tobias Licha, Daniel J Jackson, Klaus Wolkenstein   +4 more
doaj   +1 more source

Étude préliminaire du traitement d’effluents contenant de l’encre de seiche par centrifugation et procédés à membranes [PDF]

, 2006
Il s’agit d’une étude préliminaire sur le traitement d’effluents de conditionnement de la seiche avant congélation en vue de réduire la charge polluante des rejets et de valoriser l’encre qu’ils contiennent. Deux types de procédés ont été mis en oeuvre :
Aloulou, Imen, Amar, Raja Ben, Jaouen, Pascal, Quemeneur, Francis, Walha, Khaled   +4 more
core   +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

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, Shibao Li, Xuan Huang, Yunyan Huang, Yuting Tan, Zhaozheng Yin   +5 more
wiley   +1 more source

In vitro induction of melanin synthesis and extrusion by tamoxifen [PDF]

, 2013
Physical appearance has significant importance psychologically and socially, with skin and hair being of prime relevance. Effective ingredients that modulate melanin synthesis are of growing interest. Tamoxifen, a widely used selective oestrogen receptor
Archer, Arck, Barton, Berson, Colletta, Costin, Creidi, Emmerson, Filardo, Ganesan, Grigoryants, Hoashi, Im, Jee, Kanda, Kauser, Khaled, Kippenberger, Kronstrand, Lee, Lin, Maresca, McLeod, Nelson, Ohnemus, Ozeki, Reid, Schallreuter, Schallreuter, Schwahn, Seckin, Shah, Shu, Singh, Stevenson, Theos, Vitseva, Vivacqua, Wood   +38 more
core   +1 more source

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

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, François Maillard, Briana H. Beatty, Jessica K. Novak, Jeffrey G. Gardner, Jonathan S. Schilling, Jennifer Pett‐Ridge, Peter G. Kennedy   +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, S. A. Archer‐Hartmann, P. Azadi, R. L. Rogers, J. P. Wares, K. F. Stanger‐Hall   +5 more
wiley   +1 more source

Quantitative photoluminescence of broad band absorbing melanins: A procedure to correct for inner filter and re-absorption effects

, 2004
We report methods for correcting the photoluminescence emission and excitation spectra of highly absorbing samples for re-absorption and inner filter effects.
Forest, Gallas, Hecht, Hill, Jennifer Riesz, Joel Gilmore, Kollias, Lakowicz, McGuiness, Menon, Meredith, Mosca, Nofsinger, Paul Meredith, Prota, Stark, Taylor, Teuchner, Vitkin, Williams   +19 more
core   +1 more source

Eumelanin and pheomelanin are predominant pigments in bumblebee (Apidae: Bombus) pubescence [PDF]

, 2017
Background: Bumblebees (Hymenoptera: Apidae: Bombus) are well known for their important inter- and intra-specific variation in hair (or pubescence) color patterns, but the chemical nature of the pigments associated with these patterns is not fully ...
Alberto, Jorge, Ornosa Gallego, Concepción, Polidori, Carlo   +2 more
core   +2 more sources

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