Results 31 to 40 of about 732 (165)
Chemistry – A European Journal, Volume 27, Issue 66, Page 16309-16319, November 25, 2021., 2021 Melanin‐like materials can be easily prepared from simple precursors upon controlled oxidation/polymerization. In the resulting system, species with different structure and morphology coexist and interact. The overall photophysical and photochemical properties depend in part on the nature of the chromophores formed but also, to a large extent, on the ...
Alexandra Mavridi‐Printezi +3 more
wiley +1 more source
Palaeontology, Volume 64, Issue 6, Page 805-815, November 2021., 2021 Abstract Marine deposits of earliest Eocene age in northern Jutland, Denmark, are renowned for yielding diverse teleost assemblages that have proved central for enhancing our understanding of the early evolution of many extant actinopterygian clades. In this study, we investigate diminutive larval fish fossils from the Stolleklint Clay, Ølst Formation,
Miriam Heingård +5 more
wiley +1 more source
How Egg Case Proteins Can Protect Cuttlefish Offspring? [PDF]
PLoS ONE, 2015 Sepia officinalis egg protection is ensured by a complex capsule produced by the female accessory genital glands and the ink bag. Our study is focused on the proteins constituting the main egg case.
Valérie Cornet +7 more
doaj +1 more source
Recent advances in heteromorph ammonoid palaeobiology
Biological Reviews, Volume 96, Issue 2, Page 576-610, April 2021., 2021 ABSTRACT Heteromorphs are ammonoids forming a conch with detached whorls (open coiling) or non‐planispiral coiling. Such aberrant forms appeared convergently four times within this extinct group of cephalopods. Since Wiedmann's seminal paper in this journal, the palaeobiology of heteromorphs has advanced substantially.
René Hoffmann +9 more
wiley +1 more source
Preparing the perfect cuttlefish meal: complex prey handling by dolphins. [PDF]
PLoS ONE, 2009 Dolphins are well known for their complex social and foraging behaviours. Direct underwater observations of wild dolphin feeding behaviour however are rare.
Julian Finn, Tom Tregenza, Mark Norman
doaj +1 more source
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
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