Comparison of the ultrafast absorption dynamics of eumelanin and pheomelanin

Article Abstract:

The transient absorption spectra in the visible region and their decay dynamics following excitation of synthetic pheomelanin and Sepia eumelanin at 303 nm are compared. An enhanced photoreactivity of the red melanin, pheomelanin compared to the black melanin, eumelanin is invoked to explain why fair skinned individuals are more prone to skin cancers.

Prevention, Ultraviolet radiation, Skin cancer, Melanin, Absorption spectra

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Binding of ochratoxin a derivatives to human serum albumin

Article Abstract:

Ochratoxins are fungal metabolites known to contaminate human and animal feed. By using optical spectroscopy, the binding of three Ochratoxin A (OTA) derivatives ochratoxin B (OTB), ochratoxin hydroquinone (OHQ), and O-methylated OTA(MOA) to HSA is examined.

Biological Product (except Diagnostic) Manufacturing, Cyclic crudes and intermediates, Cyclic Crude and Intermediate Manufacturing, Biological products exc. diagnostic, Blood Albumin, Hydroquinone, Serum albumin, Chemical properties, Optical spectrometers

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