Results 31 to 40 of about 577 (133)
An electrochemical study of natural and chemically controlled eumelanin
APL Materials, 2017 Eumelanin is the most common form of the pigment melanin in the human body, with functions including antioxidant behavior, metal chelation, and free radical scavenging. This biopigment is of interest for biologically derived batteries and supercapacitors.
Ri Xu +5 more
doaj +1 more source
Pharmacoinformation analysis of the molecules of the drug Klimaktoplan
Фармакокинетика и Фармакодинамика, 2018 An analysis of an array of publications on naturaL extracts of tsimitsifuga, sepia, sanguinaria included in the preparation KLimaktoplan, showed that only the extracts of tsimitsifugi have more than 800 studies.
I. Yu. Torshin +2 more
doaj +1 more source
International Journal of Electrochemical Science, 2012 A rapid, simple and highly sensitive flow-injection (FI) electrogenerated chemiluminescence (ECL) method was developed for the determination of melanin, a biological pigment present in the skin, eyes, hair, scales and it is responsible for color of them.
Nawal A. Alarfaj +2 more
doaj +1 more source
Ritualized ink use during visual courtship display by males of the sexually dimorphic cuttlefish Sepia andreana. [PDF]
Ecol EvolCephalopods may release ink when attacked by predators, but we have discovered that ink is used as a part of the courtship display by males of the cuttlefish species Sepia andreana. Males of this species engage in a highly ritualized multi‐modal courtship using a pair of markedly long sexually dimorphic arms, and at the climax of the courtship, the ...
Nakayama A +4 more
europepmc +2 more sources
Mycology, 2018 Production, purification and characterisation of a black pigment from Termitomyces albuminosus as melanin is reported, for the first time, from shaken submerged culture condition using scanning electron microscopy (SEM), elemental analysis, ultraviolet ...
Rosy Agnes De Souza +2 more
doaj +1 more source
Chloroquine and hydroxychloroquine binding to melanin: Some possible consequences for pathologies
Toxicology Reports, 2014 For many years chloroquine was used as a prophylactic agent against malaria, and more recently as a mild immunosuppressive. However, due to lengthy treatment periods, adverse effects have become apparent, which included retinopathy.
R.L. Schroeder, J.P. Gerber
doaj +1 more source
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 +4 more
doaj +1 more source
Redox activity of melanin from the ink sac ofSepia officinalisby means of colorimetric oxidative assay [PDF]
Natural Product Research, 2015 The redox properties of natural extract from cuttlefish ink sac (Sepia officinalis) and synthetic melanin used as a biomimetic in melanin structural investigation were determined by comparison of this phenol-based heterogeneous pigment with gallic acid used as a standard in Folin–Ciocalteu colorimetric assay widely employed for characterisation of ...
Srisuk P. +4 more
openaire +4 more sources
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