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Published on: November 27, 2016
Serotonergic Mechanisms in Proteinoid-Based Protocells
Panagiotis Mougkogiannis1, Andrew Adamatzky1
1Unconventional Computing Laboratory, University of the West of England, Bristol BS16 1QY, U.K.
Adding serotonin (5-HT) to proteinoid microspheres enhances their structure and electrochemical properties. These serotonin-modified proto-neurons offer insights into early cellular organization and signaling.
Area of Science:
- Biochemistry
- Materials Science
- Astrobiology
Background:
- Proteinoid microspheres mimic early cell structures.
- Understanding self-assembly is key to origins of life research.
Purpose of the Study:
- To investigate serotonin's impact on proteinoid microsphere assembly.
- To analyze structural and electrochemical changes.
Main Methods:
- Incorporation of serotonin (5-HT) into proteinoid microspheres.
- Scanning Electron Microscopy (SEM) for structural analysis.
- Cyclic voltammetry for electrochemical property assessment.
Main Results:
- Proteinoid-serotonin assemblies exhibit improved symmetry and membrane organization.
- Enhanced electron transfer observed, indicated by reduced peak separation and higher efficiency.
- SEM revealed a distinct core-shell structure and uniform density, suggesting ordered assembly.
Conclusions:
- Serotonin significantly alters proteinoid self-assembly, creating structured systems.
- Modified microspheres demonstrate enhanced electron transfer capabilities.
- Findings provide insights into prebiotic information processing and early cellular signaling.
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