Results 41 to 50 of about 7,034 (200)

A Natural Eumelanin‐Assisted Pullulan/Chitosan Hydrogel for the Management of Diabetic Oral Ulcers

Macromolecular Bioscience
Existing methods for treating diabetic oral ulcers often fall short in clinical environments due to potential bacterial contamination, oxidative harm, and hindered angiogenesis throughout the healing process.
Ying Li, Yajing Xiang, Yuxi Chen, Yingying Wang, Wei Dong, Yan Liu, Xiaoliang Qi, Jianliang Shen   +7 more
semanticscholar   +1 more source

Identification of black sturgeon caviar pigment as eumelanin.

Food Chemistry, 2021
Reported herein is the purification of the pigment of black sturgeon caviar and its unambiguous identification as a typical eumelanin by means of chemical degradation coupled with electron paramagnetic resonance (EPR) evidence. HPLC and LC-MS analysis of
L. Panzella, Kenneth Benning, D. Nesbeth, Brunella Setaro, G. D’Errico, A. Napolitano, M. d’Ischia   +6 more
semanticscholar   +1 more source

Melanin and Melanin-Like Hybrid Materials in Regenerative Medicine

Nanomaterials, 2020
Melanins are a group of dark insoluble pigments found widespread in nature. In mammals, the brown-black eumelanins and the reddish-yellow pheomelanins are the main determinants of skin, hair, and eye pigmentation and play a significant role in ...
Chiara Cavallini, Giuseppe Vitiello, Barbara Adinolfi, Brigida Silvestri, Paolo Armanetti, Paola Manini, Alessandro Pezzella, Marco d’Ischia, Giuseppina Luciani, Luca Menichetti   +9 more
doaj   +1 more source

Physiological Roles of Eumelanin- and Melanogenesis-Associated Diseases: A Look at the Potentialities of Engineered and Microbial Eumelanin in Clinical Practice

Bioengineering
This paper aims to highlight the physiological actions exerted by eumelanin present in several organs/tissues of the human body and to rationalise the often conflicting functional roles played by this biopolymer on the basis of its peculiar properties ...
Maria Letizia Terranova
doaj   +1 more source

Probing the heterogeneous structure of eumelanin using ultrafast vibrational fingerprinting

Nature Communications, 2020
Eumelanin is a brown-black biological pigment with sunscreen and radical scavenging functions important to numerous organisms. Eumelanin is also a promising redox-active material for energy conversion and storage, but the chemical structures present in ...
Christopher Grieco, Forrest R Kohl, A. Hanes, B. Kohler   +3 more
semanticscholar   +1 more source

Melanin-Based Coatings as Lead-Binding Agents

Bioinorganic Chemistry and Applications, 2012
Interactions between metal ions and different forms of melanin play significant roles in melanin biochemistry. The binding properties of natural melanin and related synthetic materials can be exploited for nonbiological applications, potentially ...
Karin Sono, Diane Lye, Christine A. Moore, W. Christopher Boyd, Thomas A. Gorlin, Jason M. Belitsky   +5 more
doaj   +1 more source

Kaxiras’s Porphyrin: DFT Modeling of Redox-Tuned Optical and Electronic Properties in a Theoretically Designed Catechol-Based Bioinspired Platform

Biomimetics, 2017
A detailed computational investigation of the 5,6-dihydroxyindole (DHI)-based porphyrin-type tetramer first described by Kaxiras as a theoretical structural model for eumelanin biopolymers is reported herein, with a view to predicting the technological ...
Orlando Crescenzi, Marco d’Ischia, Alessandra Napolitano   +2 more
doaj   +1 more source

Exploring the chemistry and composition of black soldier fly eumelanin, a material for a circular economy

Materials Advances
Demonstrated is the first example of dihydroxyindole carboxylic acid presence within an insect eumelanin, a conductive biomaterial material for the circular economy.
A. B. Mostert, S. Mattiello, S. Li, G. Perna, M. Lasalvia, P. Ambrico, J. V. Paulin, J. V. M. Lima, C. F. Graeff, J. W. Phua, M. Matta, A. Surman, R. Gunnella, M. Ambrico   +13 more
semanticscholar   +1 more source

Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak

Animal Research and One Health, EarlyView.
Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan, Jialei Chen, Chuzhao Lei, Fengwei Zhang, Shunzhong He, Weiru Song, Hongyan Ma, Shuling Li, Guomei Li, Laba Yongcuo, Jianlin Han, Johannes A. Lenstra, Qiang Zhang, Rende Song, Basang Wangdui, Ningbo Chen   +15 more
wiley   +1 more source

Unraveling Eumelanin Radical Formation by Nanodiamond Optical Relaxometry in a Living Cell

Journal of the American Chemical Society
Defect centers in a nanodiamond (ND) allow the detection of tiny magnetic fields in their direct surroundings, rendering them as an emerging tool for nanoscale sensing applications.
Qi Lu, Berlind Vosberg, Zhenyu Wang, P. Balasubramanian, Maabur Sow, C. Volkert, Raúl Gonzalez Brouwer, Ingo Lieberwirth, R. Graf, Fedor Jelezko, M. Plenio, Yingke Wu, Tanja Weil   +12 more
semanticscholar   +1 more source