Eumelanins, the chief photoprotective pigments in man and mammals, owe their black color
to an unusual broadband absorption spectrum whose origin is still a conundrum. Excitonic …

Avobenzone (AB) is a widely used UVA filter known to undergo irreversible
photodegradation. Here, we investigate the detailed pathways by which AB photodegrades …

The possibility of current injection and transport in eumelanin films, humans' most common
natural pigment, has fascinated physicists and materials scientists since the early'60s …

Eumelanin, a member of the melanin family, is a black-brown insoluble pigment. It
possesses a broad range of properties such as antioxidation, free radical scavenging …

Using first-principles calculations, we investigate the absorption spectra (in the near-
infrared, visible, and first UV range) of the two most probable eumelanin tetrameric …

Sunscreens provide vital protection against the photodamaging effects of UV radiation,
however, many fundamental questions remain about the detailed mechanisms by which …

In the present paper, we investigated the polarization effects on different amino acids (AAs)
structures, ie, Serine, Threonine, Cysteine, Methionine, Asparagine, and Glutamine. Initially …

Eumelanin is an important pigment, for example, in skin, hair, eyes, and the inner ear. It is a
highly heterogeneous polymer with 5, 6-dihydroxyindole-2-carboxylic acid (DHICA) and 5, 6 …

We employ molecular dynamics (MD) simulations to assess the electrical behavior of the
atomic charges of a fullerene immersed in an ionic liquid (and water). From solute-solvent …

Employing a sequential quantum mechanical/molecular mechanical approach for polar
protic solvents, we study the absorption spectrum of eumelanin building blocks including …