Below shows a graphical representation of the synapse. The synapse consists of colloidal spheres with nano-channels between them. Credit: Utrecht University
This raises the question: could we not achieve a more faithful replication of the brain’s workings by adopting the same medium? This intriguing possibility lies at the heart of the burgeoning field of iontronic neuromorphic computing. Tim Kamsma, a PhD candidate at the Institute for Theoretical Physics and the Mathematical Institute of Utrecht University, and the lead author of the study, expresses his excitement, stating, “While artificial synapses capable of processing complex information already exist based on solid materials, we now show for the first time that this feat can also be accomplished using water and salt.
An additional finding is that the length of the channel impacts the duration required for concentration changes to dissipate. “This suggests the possibility of tailoring channels to retain and process information for varying durations, again akin to the synaptic mechanisms observed in our brains,” elaborates Kamsma.The genesis of this discovery can be traced back to an idea conceived by Kamsma, who began his doctoral research not long ago.
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