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Neural engineering to produce in vitro nerve constructs and neurointerface.

机译:神经工程产生体外神经结构和神经接口。

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OBJECTIVE: Recently, our laboratory recapitulated a natural form of axon growth that occurs between late embryogenesis and early adulthood. In this article, we describe how this novel neural engineering approach may be used to produce a nervous tissue interface to integrate disconnected motor and sensory functions for external control. METHODS: For nervous system repair, we recently developed a unique method to engineer nervous tissue constructs in vitro consisting of bundles of axons spanning two populations of neuronal somata. To integrate electronics and nervous tissue to transform electrophysiological signals into electronic signals, we have designed a nervous tissue interface. RESULTS: Our nervous tissue interface consists of stretch-grown nervous tissue with one end interfaced with a multiple electrode array, enabling us to detect and record real-time efferent signals conducted down the nerve and stimulate afferent sensory signaling. CONCLUSION: Our ultimate goal is to develop a neurally controlled prosthesis and a nervous system interface that could be linked to the patient's thoughts, providing two-way signaling for motor control and feedback from multiple external stimuli.
机译:目的:最近,我们的实验室总结了在胚胎发生晚期和成年早期之间发生的一种天然形式的轴突生长。在本文中,我们描述了如何将这种新颖的神经工程方法用于产生神经组织界面,以整合断开的运动和感觉功能以进行外部控制。方法:对于神经系统修复,我们最近开发了一种独特的体外工程化神经组织构建体的方法,该构建体由跨越两个神经元躯体种群的轴突束组成。为了集成电子设备和神经组织以将电生理信号转换为电子信号,我们设计了神经组织接口。结果:我们的神经组织接口由拉伸生长的神经组织组成,其一端与多个电极阵列相接口,使我们能够检测并记录沿神经传导的实时传出信号并刺激传入的感觉信号。结论:我们的最终目标是开发一种神经控制的假体和神经系统接口,该接口可以与患者的思想联系起来,为运动控制和来自多个外部刺激的反馈提供双向信号。

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