Simulation of Capsule Formation from Amino Acid Thermal Heterocomplex Polymers by Autocatalytic Reaction Mechanism

Amino acid thermal heterocomplex molecules are primitive macromolecules synthesized by thermally polymerizing amino acids. Amino acid thermal heterocomplex molecules microspheres form capsules in response to changes in the surrounding environment, but the mechanism has not been clarified. In this study, we hypothesized that the autocatalytic properties of amino acid thermal heterocomplex molecules is a main factor in capsule formation and integrated a self- catalytic cluster formation mechanism into Brownian dynamics and tried to verify it. It was clarified that when cluster formation was incorporated, high-density regions were formed. This result suggests that the clusters in the highdensity region grow further to form a capsule-like structure. From this result, amino acid thermal heterocomplex molecules, which is primitive macromolecules, has the function of the formation of physical compartment that is thought to have contributed to the origin of life, which is derived from the autocatalytic association process of the amino acid thermal heterocomplex molecules.