Results 101 to 110 of about 5,617 (213)

Cucumber‐Derived Exosome‐Like Vesicles With Melanin‐Inhibitory Activity and an Acceptable in Vitro Safety Profile

Journal of Cosmetic Dermatology, Volume 25, Issue 6, June 2026.
ABSTRACT Background Skin hyperpigmentation disorders affect millions worldwide, driving demand for depigmentation products. However, many conventional skin‐lightening products contain dangerous ingredients, including mercury and unregulated hydroquinone.
Che‐Yuan Hsu, Wei‐Chen Chen, Horng‐Shen Chen, Yu‐Chen Liao, Cheng‐Han Hsieh, Donald Liu, Ya‐Wen Cheng   +6 more
wiley   +1 more source

Eumelanin-releasing spongy-like hydrogels for skin re-epithelialization purposes

, 2017
Melanin function in the skin has been associated with pigmentation but other properties such as electrical conductance, photoprotection, and antioxidant and antimicrobial activity have also been recognized. Nonetheless, the use of melanin in a skin wound
Rogério P Pirraco, Rui L Reis, Silva, Lucília Pereira, Tírcia C Santos, Alexandra P Marques, Santos, T. C., Sílvia Oliveira, Reis, R. L., Correlo, V. M., Pirraco, Rogério P., Vitor M Correlo, Marques, A. P., Lucília P da Silva, Oliveira, Sílvia   +13 more
core   +1 more source

Superior Photoprotective Motifs and Mechanisms in Eumelanins Uncovered

Journal of the American Chemical Society, 2014
Human pigmentation is a complex phenomenon commonly believed to serve a photoprotective function through the generation and strategic localization of black insoluble eumelanin biopolymers in sun exposed areas of the body. Despite compelling biomedical relevance to skin cancer and melanoma, eumelanin photoprotection is still an enigma: What makes this ...
Corani, Alice, Huijser, Annemarie, Gustavsson, Thomas, Markovitsi, Dimitra, Malmqvist, Per-Åke, Pezzella, Alessandro, D’ischia, Marco, Sundström, Villy   +7 more
openaire   +5 more sources

Aqueous photo(electro)catalysis with eumelanin thin films

, 2018
We report that eumelanin, the ubiquitous natural pigment found in most living organisms, is a photocatalytic material. Though the photoconductivity of eumelanin and its photochemical reactions with oxygen have been known for some time, eumelanins have ...
Gryszel, Maciej,, Głowacki, Eric Daniel, Derek, Vedran,, Migliaccio, Ludovico,, Glowacki, Eric,, Migliaccio, Ludovico, Glowacki, Eric, Pezzella, Alessandro, Pezzella, Alessandro,, Gryszel, Maciej, Derek, Vedran   +10 more
core   +1 more source

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

Pheomelanin as well as Eumelanin Is Present in Human Epidermis

, 1991
There are two types of melanin in mammals, the brownish black eumelanin and the reddish yellow pheomelanin. Eumelanin and pheomelanin are present in human hair and this study was carried out to whether both pigments are also present in human epidermis ...
Burchill, Susan A, Thody, Anthony J, Wakamatsu, Kazumasa, Ito, Shosuke, Marks, Janet M, Higgins, Elisabeth M   +5 more
core   +1 more source

Polydopamine and eumelanin molecular structures investigated with ab initio calculations

, 2016
A set of computational methods that contains a brute-force algorithmic generation of chemical isomers, molecular dynamics (MD) simulations, and density functional theory (DFT) calculations is reported and applied to investigate nearly 3000 probable ...
Buehler, Markus J, Martinez, Francisco, Chen, Chun-Teh, Jung, Gang Seob   +3 more
core   +1 more source

A computational investigation of eumelanin-drug binding in aqueous solutions

Melanin is a widely found natural pigment serving multiple physiological functions and having numerous applications in industries and pharmaceuticals. Due to the diverse structural properties of melanin, drug molecules exhibit varying degrees of affinity
Karttunen, Mikko, Soltani, Sepideh, Urtti, Arto, Roy, Anupom   +3 more
core   +1 more source

Persicaria tinctoria Extract Mitigates UV-Associated DNA Damage and Inflammation, While Boosting Vitamin D3 and Melanin in Human Skin

Cosmetics
Benefit/risk management of skin exposure to sunlight, especially ultraviolet (UV) rays, is mainly driven by photoaging, cancer incidence, and the requirement for vitamin D3 synthesis.
Morgane de Tollenaere, Catherine Zanchetta, Anaïs Durduret, Jessy Martinez, Bénédicte Sennelier-Portet, Jean Tiguemounine, Amandine Scandolera, Romain Reynaud   +7 more
doaj   +1 more source

Pheomelanin pigment remnants mapped in fossils of an extinct mammal

Nature Communications, 2019
Chemical imaging and spectroscopy have previously been used to identify eumelanin residue in fossils and infer dark coloration. Here, Manning and colleagues develop an approach to identify pheomelanin (red pigment) residues and ascertain their ...
Phillip L. Manning, Nicholas P. Edwards, Uwe Bergmann, Jennifer Anné, William I. Sellers, Arjen van Veelen, Dimosthenis Sokaras, Victoria M. Egerton, Roberto Alonso-Mori, Konstantin Ignatyev, Bart E. van Dongen, Kazumasa Wakamatsu, Shosuke Ito, Fabien Knoll, Roy A. Wogelius   +14 more
doaj   +1 more source