Melanosomes are organelles found in a wide variety of tissues throughout the animal
kingdom and exhibit a range of different shapes: spheres of up to∼ 1 μm diameters and …

ABSTRACT Free‐Electron Lasers (FELs) collectively operate from the terahertz through the
ultraviolet range and via intracavity Compton backscattering into the X‐ray and gamma‐ray …

Neuromelanin (NM) isolated from the substantia nigra region of the human brain was
studied by scanning probe and photoelectron emission microscopies. Atomic force …

Eumelanin is a ubiquitous biological pigment that rapidly and efficiently deactivates excited
states created by UV or visible radiation. Paradoxically, photoirradiation of eumelanin also …

Free electron laser‐photoelectron emission microscopy (FEL‐PEEM), femtosecond
absorption spectroscopy and electron paramagnetic resonance (EPR) measurements of …

Melanin pigments are found widely in animals and plants (1). Melanin's most conspicuous
presence is on the surface of the body, where it serves to protect underlying tissues from …

Eumelanosomes and pheomelanosomes isolated from black and red human hair,
respectively, were studied by photo‐electron emission microscopy (PEEM). PEEM images …

The discovery of life on other planets and moons in our solar system is one of the most
important challenges of this era. The second ExoMars mission will look for traces of extant or …

Uveal melanosomes originating in the iridal stroma contain both black (eumelanin) and red
(pheomelanin) pigment. Recent studies reveal that the eumelanin/pheomelanin ratio varies …

The ionization energies of biological nanoparticles are determined using the velocity map
photoelectron imaging technique. A beam of nanoparticles produced by aerosol methods is …