Results 81 to 90 of about 5,617 (213)

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, Volume 36, Issue 45, 5 June 2026.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Engineering Trace‐Amount Electrolyte Additives for Aqueous Zinc Batteries

Advanced Energy Materials, Volume 16, Issue 22, 10 June 2026.
Large‐amount additives primarily modify the bulk electrolyte by coordinating with Zn2+ or reshaping the hydrogen‐bond network, thereby altering the overall solution chemistry. In contrast, trace‐amount additives mainly operate at the electrode–electrolyte interface, regulating Zn deposition through electric double‐layer modulation, interfacial ...
Zhaoxin Li, Jinhua Guo, Longjun Chang, Zhenyu Jiang, Shuchang Liu, Chao Wang, Qi Liu, Baohua Li, Zhiqiang Niu, Qing Li   +9 more
wiley   +1 more source

Emerging infectious disease selects for darker plumage coloration in greenfinches

Frontiers in Ecology and Evolution, 2014
Outbreaks of emerging infectious disease offer a unique chance to study viability selection in action in short time windows. Finch trichomonosis, caused by a protozoan Trichomonas gallinae emerged in Great Britain in 2005 and led to epidemic mortality ...
Marju eMänniste, Peeter eHõrak
doaj   +1 more source

Influence of MC1R Gene Variants on Coat Color of Indicine Cattle Breeds

Animal Genetics, Volume 57, Issue 3, June 2026.
ABSTRACT Indicine cattle display a broad range of coat colors, representing a relevant and breed‐defining trait required for registration in breeder association. Among the genes involved in pigmentation, MC1R stands out for modulating the synthesis of melanin‐related proteins and remains poorly explored in indicine cattle breeds. Therefore, we aimed to
Silel V. S. A. Maciel, Ingrid P. P. Oliveira, Beatriz B. Senes, Carolaine J. S. Santana, Jackeline S. Alves, Edilane A. da Silva, Fernando O. Franco, Bárbara C. F. da Silva, Fernando C. Cairo, Frederico C. Cairo, Aníbal E. Vercesi‐Filho, Raphael B. Costa, Gregório M. F. de Camargo   +12 more
wiley   +1 more source

ASIP Variants in Livestock: It's Not Black and White

Animal Genetics, Volume 57, Issue 3, June 2026.
ABSTRACT Fur and feather pigmentation play an important role in the survival and reproduction of many species, as well as in selective breeding and agriculture. The synthesis of pigment molecules, eumelanin and pheomelanin, is partially regulated by the agouti signalling protein (ASIP) encoded by the ASIP gene.
Isabella M. Brown, Kylie A. Munyard
wiley   +1 more source

Bacterial Pigments as Potential Antitumor Agents Against Gastrointestinal Cancers: A Comprehensive Systematic Review

Biotechnology and Applied Biochemistry, Volume 73, Issue 3, Page 1626-1646, June 2026.
ABSTRACT Gastrointestinal cancers (GICs) constitute one of the leading causes of cancer‐related morbidity and mortality worldwide. Despite currently available therapeutic strategies, new approaches and procedures are needed for their prevention and treatment.
Raúl Vergara, Ricardo F. S. Pereira, Carla C. C. R. de Carvalho, Jose Prados, Consolación Melguizo, Raul Ortiz   +5 more
wiley   +1 more source

Pheomelanin is a prooxidant promoting DOPA conversion to a eumelanin coating: Discovery of a non-enzymatic mimic of the natural casing process of melanosome assembly

, 2011
According to a currently accepted kinetic model, assembly of pigment-containing organelles, the melanosomes, occurs by a casing process in which a pheomelanin core is initially formed and is then encapsulated into a eumelanin coating.
NAPOLITANO, ALESSANDRA
core  

Radiative Relaxation Quantum Yields for Synthetic Eumelanin

, 2004
We report absolute values for the radiative relaxation quantum yield of synthetic eumelanin as a function of excitation energy. These values were determined by correcting for pump beam attenuation and emission reabsorption in both eumelanin samples and ...
Schölmerich, J., Rummele, P., Rath, H. C., Messmann, Helmut, Hausmann, F., Krieg, R. C., Meredith, P., Riesz, J., Paul Meredith, Knuchel, R., Endlicher, E.   +10 more
core   +1 more source

Sustainable Development Path of Traditional High-Pollution Bleaching Process for Animal Fibers: Key Mechanisms, Critical Influencing Factors and Bottlenecks—A Review

Journal of Natural Fibers
Animal fiber is an important raw material for textiles. Dark animal fibers cannot be directly dyed by light colors, which is difficult to meet the demand for color diversity in clothing.
Jiajun Pan, Yuxuan Li, Jiangfei Lou, Zhaopeng Xia   +3 more
doaj   +1 more source

Optimization of Bacillus licheniformis MAL tyrosinase: in vitro anticancer activity for brown and black eumelanin

Heliyon, 2019
The influence of tyrosinase in catalyzes/stimulates the eumelanin production was studied. Accordingly, bacterial sp. was isolated and identified as Bacillus licheniformis based on 16S rRNA.
Al Shimaa Gamal Shalaby, Tamer I.M. Ragab, Mohamed M.I. Helal, Mona A. Esawy   +3 more
doaj   +1 more source