Publications by authors named "Yoshimi Maruoka"
The RNA world hypothesis suggests that chemical networks consisting of functional RNA molecules could have constructed a primitive life-like system leading a first living system. The chemical evolution scenario of RNA molecules should be consistent with the Hadean Earth environment. We have demonstrated the importance of the environment at both high temperature and high pressure, using different types of hydrothermal flow reactor systems and high-pressure equipment.
View Article and Find Full Text PDFArticle Synopsis
- The study builds on previous research showing that calcite and dolomite help elongate alanine oligopeptides at 275°C, but encounters issues using clay minerals due to clogging in the experimental setup.
- It investigates how various minerals, including clay ones, affect the formation of longer alanine chains at a lower temperature of 175°C, finding that some carbonate and clay minerals enhance oligopeptide formation while volcanic products inhibit it.
- The findings suggest that the pH level significantly influences the elongation process, and that interactions between water and minerals are key factors, indicating optimal environments for peptide accumulation would be near neutral to weakly alkaline hydrothermal conditions.