The function of melanin or six blind people examine an elephant

HZ Hill - Bioessays, 1992 - Wiley Online Library
The pigment melanin is found in all living kingdoms and in many different structures and
forms. When its various functions are examined separately, its behaviors seem disparate …

Fungi and ionizing radiation from radionuclides

J Dighton, T Tugay, N Zhdanova - FEMS microbiology letters, 2008 - academic.oup.com
Radionuclides in the environment are one of the major concerns to human health and
ecotoxicology. The explosion at the Chernobyl nuclear power plant renewed interest in the …

[HTML][HTML] Supranuclear melanin caps reduce ultraviolet induced DNA photoproducts in human epidermis

N Kobayashi, A Nakagawa, T Muramatsu… - Journal of Investigative …, 1998 - Elsevier
Melanin can form supranuclear caps in human epidermis, suggesting that intracellular
melanin reduces ultraviolet transmission to underlying cell nuclei and inhibits the formation …

Melanin: a two edged sword?

HZ Hill, W Li, P Xin, DL Mitchell - Pigment cell research, 1997 - Wiley Online Library
Melanin is both photosensitizer and photoprotector. Skin cancer rates decrease with
increasing constitutive pigmentation, yet the pigment has been shown to be photoreactive …

Ionizing radiation attracts soil fungi

NN Zhdanova, T Tugay, J Dighton, V Zheltonozhsky… - Mycological …, 2004 - Elsevier
During the last 15 years, about 2000 strains of 200 species of 98 genera of fungi have been
isolated from around the Chernobyl Atomic Energy Station. Many of these microfungi are …

Photoprotection versus photodamage: updating an old but still unsolved controversy about melanin

F Solano - Polymer International, 2016 - Wiley Online Library
Melanin is the main pigment in animal skin. It is a heterogeneous polyphenolic molecule
with a generalized absorption in the UV− visible range synthesized in melanocytes, a kind of …

Wavelength‐dependent photoacoustic calorimetry study of melanin

SE Forest, JD Simon - Photochemistry and photobiology, 1998 - Wiley Online Library
Photoacoustic calorimetry is used to examine the energy dissipation in melanin under
physiological conditions (pH 7.2) following irradiation by UV and visible (VIS) light. Four …

The human melanocyte as a particular target for UVA radiation and an endpoint for photoprotection assessment

L Marrot, JP Belaidi, JR Meunier… - Photochemistry and …, 1999 - Wiley Online Library
The induction of DNA breaks by UVA (320–400 nm) in the nucleus of normal human
melanocytes in culture was investigated using single cell gel electrophoresis, also called the …

Photosensitizing mechanism and identification of levofloxacin photoproducts at ambient UV radiation

A Dwivedi, SF Mujtaba, HN Kushwaha… - Photochemistry and …, 2012 - Wiley Online Library
Levofloxacin (LVFX) is a broad spectrum third generation fluoroquinolone antibiotic, used in
the treatment of severe or life‐threatening bacterial infections. Photosensitizing mechanism …

Establishing structure–function relationships for eumelanin

JB Nofsinger, EE Weinert… - … : Original Research on …, 2002 - Wiley Online Library
The aggregation‐dependent optical properties of eumelanin from human hair are examined.
When aggregation is increased, the absorption spectrum extends to lower energy. The …