Black material on the planet

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The black matter is very common on our planet ( lithosphere, hydrosphere, atmosphere , biosphere ), as well as in the Cosmo if one considers the black matter found in interstellar spaces.

The black matter is composed by two main classes : The black cell matter ( BCM ) The black synthetic matter ( BSM )

BCM
key words.

DOPA, pyrrole, indole

Link 23 Perspectives in melanin chemistry

Fused with WORD Link 12 testo terzo.doc.Revised March 2005.

Melanin is instrumental for certain brain, ear, eyes and skin functions. It

would be rather difficult to distinguish blue or green colours of animal or

plant kingdom without melanin. No blue or green eyes to admire……

If you are skeptical about, imagine to remove the melanin from the

biological tissues and observe what happens.

Melanin chemistry produced poor results so far, due to the use of too raw

materials in chemical and physical analyses and to scarce knowledge of

solid state science by the researchers involved. The discovery of the

particle is expected, in our view, to change the strategy in future

structural and functional melanin studies, whereby mass spectrometry MALDI

( matrix-assisted laser desorption ionization ) or MALDI-TOF ( TOF = time

of flight ) are forecasted to be the most relevant fragmentation tool for

the particle and oligomers study. It is still unclear, which are, if existing at all, the

enzymes or factors regulating particle formation, how the particles operate

in vivo and if particle size, shape and internal organization are critical

for biological activity .

Remarks on melanin chemistry

The black matter is very common on our planet ( lithosphere, hydrosphere, atmosphere , biosphere ), as well as in the Cosmo if one considers the black matter found in interstellar spaces.

The BCM are classified as :

Eumelanin particles generally derived from DOPA, and widely diffused in the animal kingdom ( skin,hair,eyes,brain, feathers etc. )

Pheomelanin particles generally derived from Cysdopa ( light brown, or reddish as protein complex alkali soluble animal pigments).

Pheochromes ( red , yellow crystallisable compounds derived from Cysdopa ) The only structure elucidated is that of red hair. ( Other names trichosiderins, tricochromes, pyrrotricholes ) .

Allomelanin derived from nitrogen-free precursors like catechol, 1,8-dihydroxynaphtalene etc.. ( plant, mould, bacteria, humic acid etc.)