Melanin pigment plays a critical role in the protection against the harmful effects of ultraviolet
radiation and other environmental stressors. It is produced by the enzymatic transformation …

Endogenous photosensitizers play a critical role in both beneficial and harmful light-induced
transformations in biological systems. Understanding their mode of action is essential for …

Li‐rich Mn‐rich layered oxides (LRLO) are considered promising cathode materials for high
energy density storage because of their very high capacities that owe to the reversible redox …

There are several interrelated mechanisms involving iron, dopamine, and neuromelanin in
neurons. Neuromelanin accumulates during aging and is the catecholamine-derived …

Oxidative stress occurs when free radicals and other reactive species overwhelm the
availability of antioxidants. Reactive oxygen species (ROS), reactive nitrogen species, and …

Catechols are found in nature taking part in a remarkably broad scope of biochemical
processes and functions. Though not exclusively, such versatility may be traced back to …

Carotenoid pigments, particularly β-carotene and lycopene, are consumed in human
foodstuffs and play a vital role in maintaining health. β-carotene is known to quench singlet …

In this present study, a newly isolated strain, Streptomyces sp. NEAE-H, capable of
producing high amount of black extracellular melanin pigment on peptone-yeast extract iron …

Melanin-like nanoparticles were synthesized with size control through neutralization of
dopamine hydrochloride with NaOH, followed by spontaneous air oxidation of dopamine …

Melanin is a dark brown to black biomacromolecule with biologically active multifunctional
properties that do not have a precise chemical structure, but its structure mainly depends on …