Results 111 to 120 of about 12,369 (282)

Eumelanin-based coloration and fitness parameters in birds: a meta-analysis [PDF]

open access: yes, 2010
Although melanin is the most common pigment in animal integuments, the adaptive function of variation in melanin-based coloration remains poorly understood. The individual fitness returns associated with melanin pigments can be variable across species as
Burri, R.   +3 more
core   +3 more sources

Pump–Probe Microscopic Imaging of Jurassic-Aged Eumelanin [PDF]

open access: yesThe Journal of Physical Chemistry Letters, 2013
Melanins are biological pigments found throughout the animal kingdom that have many diverse functions. Pump-probe imaging can differentiate the two kinds of melanins found in human skin, eumelanin and pheomelanin, the distributions of which are relevant to the diagnosis of melanoma. The long-term stability of the melanin pump-probe signal is central to
Simpson, Mary Jane   +5 more
openaire   +4 more sources

International Expert Consensus on Knowledge Gaps in Care for Dermatologic Disorders in Skin of Color

open access: yesInternational Journal of Dermatology, Volume 65, Issue 1, Page 41-56, January 2026.
State‐of‐the‐art knowledge gaps in dermatological disorders, photoprotection and procedural dermatology in individuals with skin of color (SOC). ABSTRACT Patients with skin of color (SOC) face unique dermatologic challenges that are often underrepresented in research and in dermatological education, creating critical gaps in care.
Henry W. Lim   +8 more
wiley   +1 more source

Dominant Red Coat Color in Holstein Cattle Is Associated with a Missense Mutation in the Coatomer Protein Complex, Subunit Alpha (COPA) Gene. [PDF]

open access: yesPLoS ONE, 2015
Coat color in Holstein dairy cattle is primarily controlled by the melanocortin 1 receptor (MC1R) gene, a central determinant of black (eumelanin) vs. red/brown pheomelanin synthesis across animal species. The major MC1R alleles in Holsteins are Dominant
Ben Dorshorst   +11 more
doaj   +1 more source

Application of Vitamin C in Melasma: A Meta‐Analysis and Systematic Review

open access: yesDermatologic Therapy, Volume 2026, Issue 1, 2026.
Melasma is a chronic acquired facial hyperpigmentation disorder that remains a persistent clinical challenge due to its high recurrence rate and lack of a definitive cure. It imposes a substantial psychological burden on affected individuals, often leading to significant impairment of health‐related quality of life.
Lincen He, Sebastian Yu
wiley   +1 more source

Following the excited state relaxation dynamics of indole and 5-hydroxyindole using time-resolved photoelectron spectroscopy [PDF]

open access: yes, 2011
Time-resolved photoelectron spectroscopy was used to obtain new information about the dynamics of electronic relaxation in gas-phase indole and 5-hydroxyindole following UV excitation with femtosecond laser pulses centred at 249 nm and 273 nm.
Albert Stolow   +8 more
core   +1 more source

Chemoenzymatic elaboration of the Raper–Mason pathway unravels the structural diversity within eumelanin pigments†

open access: yesChemical Science, 2020
Melanin is a central polymer in living organisms, yet our understanding of its molecular structure remains unresolved. Here, we apply a biosynthetic approach to explore the composite structures accessible in one type of melanin, eumelanin.
Q. Z. Ni   +3 more
semanticscholar   +1 more source

Mussel‐Inspired Molecular Strategies for Fabricating Functional Materials With Underwater Adhesion and Self‐Healing Properties

open access: yesAdvanced Materials, Volume 37, Issue 51, December 23, 2025.
This review systematically examines the nanomechanical mechanisms of mussel‐inspired molecular interactions, primarily investigated by direct force measurement techniques such as surface forces apparatus and atomic force microscopy. The macroscopic adhesive and self‐healing performances of mussel‐inspired functional materials, including coacervates ...
Pan Huang, Hongjian Zhang, Hongbo Zeng
wiley   +1 more source

Emerging infectious disease selects for darker plumage coloration in greenfinches

open access: yesFrontiers 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

Photoelectrochemical properties of melanin [PDF]

open access: yes, 2007
Melanin is to the animal kingdom like chlorophyll to the vegetal kingdom(1). Melanin collects energy from lower-energy radiation sources, kicks electrons into excited states, initiating a process that would end up producing chemical energy, similar to ...
Arturo Solis   +2 more
core   +1 more source

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