Results 91 to 100 of about 80,543 (306)

Melanin in the rat brain [PDF]

, 1976
Melanin was measured in various parts of the rat brain by a spectrophotofluorometric assay. This method could detect natural, Sepia melanin as well as melanin synthesized from L-DOPA.
Kastin, Abba J, Miller, M.Clinton, Schally, Andrew V, Tompkins, Ronald G, Kuzemchak, Barbara   +4 more
core   +1 more source

Production and characterization of melanin pigment from black fungus Curvularia soli AS21 ON076460 assisted gamma rays for promising medical uses

Microbial Cell Factories
Owing to the growing need for natural materials in different fields, studying melanin production from biological sources is imperative. In the current study, the extracellular melanin pigment was produced by the fungus Curvularia soli AS21 ON076460.
Amira S. Abd-EL-Aziz, Nermine N. Abed, Amira Y. Mahfouz, Rasha Mohammad Fathy   +3 more
doaj   +1 more source

Role of Melanin Chemiexcitation in Melanoma Progression and Drug Resistance

Frontiers in Oncology, 2020
Melanoma is the deadliest type of skin cancer. Human melanomas often show hyperactivity of nitric oxide synthase (NOS) and NADPH oxidase (NOX), which, respectively, generate nitric oxide (NO·) and superoxide (O2·−).
Sanjay Premi
doaj   +1 more source

An Aggregation‐Induced Polymerization Poly(Disulfide)‐Drug Nanoplatform for Autoimmune Uveitis Therapy via Inhibiting the cGAS‐STING Pathway

Advanced Science, EarlyView.
A cationic poly(disulfide)‐drug nanoplatform (LA/DexP) was developed to treat experimental autoimmune uveitis (EAU). With potent blood‐retinal barrier penetrability, LA/DexP releases DSP in response to high ROS and scavenges cfDNA to inhibit the cGAS‐STING signaling pathway.
Yuelan Wu, Wenbo Geng, Qinjin Dai, Wanyun Zhang, Yuxian Lai, Pei Zhang, Chunjiang Zhou, Yinuo Wang, Qingfeng Cao, Xiang Luo, Yujie Lai, Changwei Huang, Peizeng Yang   +12 more
wiley   +1 more source

Localization of melanin in conidia of Alternaria alternata using phage display antibodies [PDF]

, 2002
Melanins derived from 1,8-dihydroxynaphthalene (DHN) are important for the pathogenicity and survival of fungi causing disease in both plants and animals. However, precise information on their location within fungal cell walls is lacking.
O'Connell, R. J., Carzaniga, Raffaella, Fiocco, Daniela, Fiocco, D., Bowyer, P., Bowyer, Paul, O'Connell, Richard J., Carzaniga, R.   +7 more
core  

Fluorescent quantification of melanin [PDF]

, 2016
Melanin quantification is reportedly performed by absorption spectroscopy, commonly at 405 nm. Here, we propose the implementation of fluorescence spectroscopy for melanin assessment.
Gomes, Andreia C, Guimarães, Diana Isabel Pereira, Fernandes, Bruno Pacheco, Matamá, Maria Teresa, Cavaco-Paulo, Artur   +4 more
core   +1 more source

Magnetic Properties of Melanin Doped with Copper Oxide Nanoparticles

Engineering Proceedings
In this study, the analysis of XRD patterns reveals that both natural melanin and copper oxide-doped melanin exhibit amorphous structures. The absence of new peaks for Cu2O confirms that the copper oxide nanoparticles are effectively integrated into the ...
Nawal Madkhali
doaj   +1 more source

Heat Stress Promotes Fibroblast‐Derived WNT5A Secretion Through m6A Modification to Activate Melanogenesis

Advanced Science, EarlyView.
Heat stress promotes WNT5A secretion from fibroblasts via METTL3/YTHDC1‐dependent m6A methylation. Subsequently, WNT5A binds to FZD10 on melanocytes, activating β‐catenin‐driven melanogenesis. ABSTRACT As the impact of global warming continues to intensify, the effects of heat stress on the skin are becoming increasingly evident.
Yuanyuan Wan, Yaqing Wen, Yushan Zhang, Lan Zhang, Jianjian Zhu, Zhen Tang, Ling Jiang, Chuhan Fu, Shu Zhou, Keyi Zhang, Jiangfeng Huang, Li Lei, Jing Chen, Qinghai Zeng   +13 more
wiley   +1 more source

Water Purification Using Synthetic Melanin [PDF]

, 2022
The goal of this project was to investigate the photocatalytic properties of synthetic Melanin and use it as a means to disinfect and purify water. The project started by synthesizing Melanin and analyzing its chemical properties.
Alhejaili, Ahmed
core  

Advancing Fruit Bioimpedance Monitoring With Sustainable, Soft, And Bio‐Based Electrodes Beyond ECG

Advanced Electronic Materials, EarlyView.
Electrical impedance spectroscopy enables non‐destructive fruit quality monitoring, but conventional ECG and needle electrodes compromise signal stability, fruit physiology, and sustainability. This perspective highlights the transition toward soft, biocompatible, and biodegradable electrode interfaces based on natural substrates, bio‐derived ...
Sundus Riaz, Ahmed Rasheed, Angelo Zanella, Almudena Rivadeneyra, Paolo Lugli, Luisa Petti, Pietro Ibba   +6 more
wiley   +1 more source