Results 61 to 70 of about 2,749 (174)
Probing Near-Infrared Photorelaxation Pathways in Eumelanins and Pheomelanins [PDF]
The Journal of Physical Chemistry A, 2010 Ultraviolet-visible spectroscopy readily discerns the two types of melanin pigments (eumelanin and pheomelanin), although fundamental details regarding the optical properties and pigment heterogeneity are more difficult to disentangle via analysis of the broad featureless absorption spectrum alone.
Piletic, Ivan R +2 more
openaire +2 more sources
Advanced Science, Volume 13, Issue 37, 3 July 2026.Inspired by natural amino acid polymer‐melanin systems, this study strategically incorporated tellurocysteine to develop advanced radiation‐shielding materials. This approach transformed the primary interaction mechanism between melanin‐based materials and incident photons from Compton scattering to the photoelectric effect. Tellurocysteine‐polymerized
Wei Chen +6 more
wiley +1 more source
Medicine Science, 2023 Melanins, which are divided into five different subgroups as eumelanin, pheomelanin, allomelanin, neuromelanin and pyomelanin, are a heterogeneous and amorphous biopolymer family.
Hamit Emre Kizil +3 more
doaj +1 more source
Advanced Science, Volume 13, Issue 38, 9 July 2026.This work introduces state‐convergent polymerization (SCP), a polymerization framework in which chemically diverse reaction pathways converge toward a reproducible functional polymeric state rather than a defined molecular structure. Using melanin and polydopamine as exemplars, SCP explains how robust polymer functions emerge under chemical and ...
Seonki Hong
wiley +1 more source
Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.Patella luxation was prevalent in Cavalier King Charles Spaniels attending Australian veterinary practices. Dogs which were younger, neutered, above the breed standard weight, and with ruby‐coloured coats were at increased risk, while dogs with bilateral luxation were more likely to be diagnosed with higher grade luxation .
Yaeji Son +3 more
wiley +1 more source
High‐Resolution Elemental Analysis of Neuromelanin‐Containing Organelles in Human Locus Coeruleus
Journal of Neurochemistry, Volume 170, Issue 7, July 2026.Created in https://BioRender.com. Neuromelanin (NM), a dark metal‐chelating pigment in the brain, has long been of interest for its potential roles in aging and Parkinson's disease. In this study, we explored NM‐containing neurons (NM neurons) in the human locus coeruleus at unprecedented resolution.
Zahraa Berro +11 more
wiley +1 more source
BiomoleculesEndocannabinoids are lipid mediators consisting of esters, amides and ethers of long-chain polyunsaturated fatty acids. In this work, attention was focused on N-arachidonoyl tyrosine (NA-Tyr) and N-arachidonoyl dopamine (NADA), the amides of arachidonic ...
Alessia Mariano +5 more
doaj +1 more source
Melanin photosensitization and the effect of visible light on epithelial cells. [PDF]
PLoS ONE, 2014 Protecting human skin from sun exposure is a complex issue that involves unclear aspects of the interaction between light and tissue. A persistent misconception is that visible light is safe for the skin, although several lines of evidence suggest ...
Orlando Chiarelli-Neto +11 more
doaj +1 more source
Cosmetic Enzymes as Formulation‐Integrated Actives: Mechanisms, Delivery, and Functional Evidence
Journal of Cosmetic Dermatology, Volume 25, Issue 7, July 2026.ABSTRACT Background Enzymes are increasingly incorporated into cosmetic formulations as engineered bioactive components whose performance depends on stabilization, delivery, and controlled activity within complex formulation systems, rather than functioning as standalone ingredients. Aims This review examines the mechanisms of action of enzymes used in
Asmae Bouziani +2 more
wiley +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 +12 more
wiley +1 more source