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Artificial nerve cells have been made in the lab

Artificial nerve cells have been made in the lab

Posted on April 24, 2022April 24, 2022 By Mohd Uzair
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Read Time:2 Minute, 35 Second
Artificial nerve cells have been made in the lab
Image; Illustration of a nerve cell
KTSDESIGN/SCIENCE PHOTO LIBRARY/Alamy via newscientist

Synthetic neurons made of hydrogel could one day be used in sophisticated artificial tissues to repair organs such as the heart or the eyes

Artificial nerve cells made from biocompatible materials have been made in a lab for the first time. The innovation may one day be used in synthetic tissues to repair organs such as the heart or the eyes.
Hagan Bayley at the University of Oxford and his colleagues devised a synthetic material that can act in a similar way to a human neuron.
Made from hydrogel, the artificial neurons are about 0.7 millimetres across ­– about 700 times wider than a human neuron.

Ideal for medical implants

A press release by CResPace project coordinator University of Bath summarises the findings of the study. “Critically the artificial neurons not only behave just like biological neurons but only need one billionth the power of a microprocessor, making them ideally suited for use in medical implants and other bio-electronic devices.”

The press release states: “Artificial neurons could repair diseased bio-circuits by replicating their healthy function and responding adequately to biological feedback to restore bodily function. In heart failure for example, neurons in the base of the brain do not respond properly to nervous system feedback, they in turn do not send the right signals to the heart, which then does not pump as hard as it should.”

It further underlines the challenges involved with creating artificial neurons and explains how the scientists have overcome these. “The researchers successfully modelled and derived equations to explain how neurons respond to electrical stimuli from other nerves. This is incredibly complicated as responses are ‘non-linear’ – in other words if a signal becomes twice as strong it shouldn’t necessarily elicit twice as big a reaction – it might be thrice bigger or something else.”

Quoted in the same press release, lead author Prof. Alain Nogaret from the University of Bath says: “Our work is paradigm changing because it provides a robust method to reproduce the electrical properties of real neurons in minute detail.” He adds that the team is “developing smart pacemakers that won’t just stimulate the heart to pump at a steady rate but use these neurons to respond in real time to demands placed on the heart – which is what happens naturally in a healthy heart. Other possible applications could be in the treatment of conditions like Alzheimer’s and neuronal degenerative diseases more generally.”

The CResPace (Adaptive Bio-electronics for Chronic Cardiorespiratory Disease) project that supported the study is scheduled to end in December 2021. A key application of the technology developed by the project involves adaptive cardiac resynchronisation that relies on small neural networks known as central pattern generators (CPGs). These neuronal circuits control several functions like respiration and heartbeat, and the coordination between muscles responsible for swallowing. The project implements CPGs with physical hardware to replicate natural control of heart rate and resynchronise heart chambers. Project partners hope CResPace will extend and improve patients’ quality of life.

Sources; newscientist

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Mohd Uzair

rehaishngo@gmail.com
http://Pranavwritesit.xyz
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current affairs Tags:ARTIFICIAL INTELLIGENCE, Artificial nerve cells, Artificial nerve cells have been made in the lab, bio-electronic devices

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