Microsphere

Microspheres, protein protocells or enveloped coacervates are small, spherical molecular aggregates, which are regarded by some scientists as an important development step during the development of life.

1953 Stanley Miller and Harold demonstrated Clayton Urey in the so-called Miller - Urey experiment that many simple biomolecules under laboratory conditions that were modeled on the ground before the evolution of life could spontaneously from precursors of these compounds ( biomolecules ) arise. Of particular interest was the significant yield of amino acids, because amino acids are the building blocks of proteins.

1957 Sidney W. Fox demonstrated that amino acids could be accommodated with simultaneous heating to to connect with each other, so as to polymerize. These polypeptides formed spherical hollow body. Were formed by self-assembly of membrane-like shells around the coacervates, and it emerged microspheres ( coacervates with envelope). Under appropriate conditions, form microspheres new microspheres on their surface. Although similar in appearance to cells, they are not living systems because they can not reproduce exactly and do not contain genetic material and can pass it on. However, they were probably responsible for the development of life significant in that it provided a set membranumschlossenes volume that could be possibly develop over hypercycles preforms in a cell.