Plasticity of conducting polymer dendrites to bursts of voltage spikes in phosphate buffered saline

Corentin Scholaert, Kamila Janzakova, Y. Coffinier, F. Alibart, Sébastien Pecqueur
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引用次数: 0

Abstract

The brain capitalizes on the complexity of both its biochemistry for neurons to encode diverse pieces of information with various neurotransmitters and its morphology at multiple scales to route different pathways for neural interconnectivity. Conducting polymer dendrites can show similar features by differentiating between cations and anions thanks to their charge accumulation profile and the asymmetry in their dendriticity that allows projecting spike signals differently. Here, we exploit such mimicry for in materio classification of bursting activity and investigate, in phosphate buffered saline, the capability of such object to sense bursts of voltage pulses of 100 mV amplitude, emitted by a local gate in the vicinity of the dendrite. The dendrite integrates the different activities with a fading memory time window that is characteristic of both the polarity of the spikes and the temporality of the burst. By this first demonstration, the ‘material-object’ definitely shows great potential to be a node halfway between the two realms of brain and electronic communication.
导电聚合物枝突对磷酸盐缓冲盐水中电压尖峰爆发的可塑性
大脑利用其生物化学的复杂性,让神经元用不同的神经递质编码不同的信息片段,并在多个尺度上利用其形态,为神经互连提供不同的途径。导电聚合物树突可以通过区分阳离子和阴离子表现出相似的特征,这要归功于它们的电荷积累剖面和树突的不对称性,这使得它们可以投射不同的尖峰信号。在这里,我们利用这种模拟来对爆发活动进行物质分类,并研究在磷酸盐缓冲盐水中,这种物体感知由树突附近的局部门发出的100 mV振幅电压脉冲爆发的能力。树突将不同的活动与一个逐渐消失的记忆时间窗口整合在一起,该时间窗口具有尖峰的极性和爆发的时间性的特征。通过这第一次演示,“实物”绝对显示出巨大的潜力,可以成为大脑和电子通信两个领域之间的一个节点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
5.90
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0.00%
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