Singh, SV and Vishakantaiah, J and Meka, JK and Muruganantham, M and Thiruvenkatam, V and Sivaprahasam, V and Rajasekhar, BN and Bhardwaj, A and Mason, NJ and Sivaraman, B (2022) Three-dimensional complex architectures observed in shock processed amino acid mixtures. In: Experimental Results, 3 .
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Abstract
Asteroid and cometary impacts have been considered one of the possible routes for exogenous delivery of organics to the early Earth. It is well established that amino acids can be synthesized due to impact-driven shock processesing of simple molecules and that amino acids can survive the extreme conditions of impact events. In the present study, we simulate impact-induced shock conditions utilizing a shock tube that can maintain a reflected shock temperature of about 5,500 K for 2 ms time scale. We have performed shock processing of various combinations of amino acids with subsequent morphological analysis carried out using Scanning Electron Microscope (SEM), revealing that the shock processed amino acids demonstrate an extensive range of complex structures. These results provide evidence for the further evolution of amino acids in impact-induced shock environments leading to the formation of complex structures and thus providing a pathway for the origin of life.
| Item Type: | Journal Article |
|---|---|
| Publication: | Experimental Results |
| Publisher: | Cambridge University Press |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | amino acids; astrobiology; complex structures; impact-shock; origin of life |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 26 Sep 2022 05:16 |
| Last Modified: | 26 Sep 2022 05:16 |
| URI: | https://eprints.iisc.ac.in/id/eprint/76664 |
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