caa a22 4500 469128046 CHVBK 20180323133156.0 cr unu---uuuuu 170328e19920701xx s 000 0 eng 10.1007/BF01809859 doi (NATIONALLICENCE)springer-10.1007/BF01809859 Contribution of temperature gradient to aggregation of thermal heterocopolymers of amino acids in aqueous milieu [Elektronische Daten] [Eiichi Imai, Jun Shirasawa, Hajime Honda, Koichiro Matsuno] We prepared thermal heterocopolymers of amino acids, aspartic acid and proline, and solubilized them in distilled water at boiling temperature. The resulting suspension was then cooled down while controlling the cooling rate. The maximum growth of phase-separated microspheres was found to occur at a finite, nonzero cooling rate. Temperature-gradient controlled growth of these microspheres indicates that aggregation of thermal heterocopolymers of amino acids in their aqueous milieu is irreversible. In view of the fact that evolutionary process is an indication of lasting physical irreversibility, thermal heterocopolymers of amino acids were shown to have an evolutionary significance in maintaining the capacity of irreversibility lasting over at least several hours. Kluwer Academic Publishers, 1992 Imai Eiichi Department of BioEngineering, Nagaoka University of Technology, 940-21, Nagaoka, Japan aut Shirasawa Jun Department of BioEngineering, Nagaoka University of Technology, 940-21, Nagaoka, Japan aut Honda Hajime Department of BioEngineering, Nagaoka University of Technology, 940-21, Nagaoka, Japan aut Matsuno Koichiro Department of BioEngineering, Nagaoka University of Technology, 940-21, Nagaoka, Japan aut Origins of life and evolution of the biosphere Kluwer Academic Publishers 21/4(1992-07-01), 243-249 0169-6149 21:4<243 1992 21 11084 https://doi.org/10.1007/BF01809859 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01809859 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Imai Eiichi Department of BioEngineering, Nagaoka University of Technology, 940-21, Nagaoka, Japan aut NATIONALLICENCE 700 1- Shirasawa Jun Department of BioEngineering, Nagaoka University of Technology, 940-21, Nagaoka, Japan aut NATIONALLICENCE 700 1- Honda Hajime Department of BioEngineering, Nagaoka University of Technology, 940-21, Nagaoka, Japan aut NATIONALLICENCE 700 1- Matsuno Koichiro Department of BioEngineering, Nagaoka University of Technology, 940-21, Nagaoka, Japan aut NATIONALLICENCE 773 0- Origins of life and evolution of the biosphere Kluwer Academic Publishers 21/4(1992-07-01), 243-249 0169-6149 21:4<243 1992 21 11084 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer