Results 51 to 60 of about 15,215 (310)
Adsorption of molybdenum by melanin [PDF]
Environmental Health and Preventive Medicine, 2019 Melanin is detectable in various sense organs including the skin in animals. It has been reported that melanin adsorbs toxic elements such as mercury, cadmium, and lead. In this study, we investigated the adsorption of molybdenum, which is widely recognized as a toxic element, by melanin.Molybdenum level of the mouse skin was measured by inductively ...
Masashi Kato +8 more
openaire +4 more sources
Skin calcium deposits in primary familial brain calcification: A novel potential biomarker
Annals of Clinical and Translational Neurology, EarlyView.Abstract Objective Primary Familial Brain Calcification (PFBC) is a rare neurodegenerative disorder characterized by small vessel calcifications in the basal ganglia. PFBC is caused by pathogenic variants in different genes and its physiopathology is still largely unknown. Skin vascular calcifications have been detected in single PFBC cases, suggesting
Aron Emmi +8 more
wiley +1 more source
Bioresorbable and Wireless Rechargeable Implanted Na‐ion Battery for Temporary Medical Devices
Advanced Functional Materials, EarlyView.An all‐solid‐state bioresorbable Na‐ion battery is developed, composed entirely of bio‐eliminable materials. In vivo and ex vivo tests confirmed harmless disintegration of this implanted battery. Lifetime of the implanted battery can be precisely controlled by adjusting the dissolvable encapsulation layer's thickness.
Vedi Kuyil Azhagan Muniraj +8 more
wiley +1 more source
Melanins as Sustainable Resources for Advanced Biotechnological Applications
Global Challenges, 2021 Melanins are a class of biopolymers that are widespread in nature and have diverse origins, chemical compositions, and functions. Their chemical, electrical, optical, and paramagnetic properties offer opportunities for applications in materials science ...
Hanaa A. Galeb +8 more
doaj +1 more source
A Bio‐Inspired Perspective on Materials Sustainability
Advanced Materials, EarlyView.This perspective discusses natural materials as inspiration for sustainable engineering designs and the processing of materials. First, circularity, longevity, parsimony, and activity are presented as essential material paradigms. The perspective then uses many examples of natural and technical materials to introduce principles such as oligo ...
Wolfgang Wagermaier +2 more
wiley +1 more source
Angewandte Chemie, EarlyView.Tetra‐ortho‐Azobenzenes (TOABs) in broad daylight: in recent years, TOAB photoswitches became indispensable tools for all‐visible‐light manipulation of chemistry, biology and materials. This review explores their unique photochemical properties, design and synthetic approaches, offering support in choosing a TOAB for a given application.
Francesca Cardano +2 more
wiley +2 more sources
Frontiers in Microbiology, 2022 Melanin is one of the most studied virulence factors in pathogenic fungi. This pigment protects them from a series of both environmental and host stressors.
Iara Bastos de Andrade +9 more
doaj +1 more source
Pigment Melanin: Pattern for Iris Recognition [PDF]
, 2009 Recognition of iris based on Visible Light (VL) imaging is a difficult problem because of the light reflection from the cornea. Nonetheless, pigment melanin provides a rich feature source in VL, unavailable in Near-Infrared (NIR) imaging. This is due to biological spectroscopy of eumelanin, a chemical not stimulated in NIR.
arxiv +1 more source
Photodynamics of Melanin Radicals: Contribution to Photoprotection by Melanin†
Photochemistry and Photobiology, 2022 AbstractThe mechanism of very efficient relaxation of the melanin‐photoexcited states, responsible for the photoprotective action of the pigment, remains a subject for intense investigation. The most recent study by C. Grieco, F. Kohl, and B. Kohler, entitled “Ultrafast radical photogeneration pathways in eumelanin,” addresses key issues of melanin ...
openaire +3 more sources
Fluorescent quantification of melanin [PDF]
Pigment Cell & Melanoma Research, 2016 SummaryMelanin quantification is reportedly performed by absorption spectroscopy, commonly at 405 nm. Here, we propose the implementation of fluorescence spectroscopy for melanin assessment. In a typical in vitro assay to assess melanin production in response to an external stimulus, absorption spectroscopy clearly overvalues melanin content.
Fernandes, Bruno Pacheco +4 more
openaire +4 more sources