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Lei Li1,2, Yihua Xu1, Qunkai Peng1

  • 1Guangdong Provincial Key Laboratory of In-Memory Computing Chips, School of Electronic and Computer Engineering, Peking University, Shenzhen 518055, P. R. China.

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概括
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这项研究介绍了使用非细胞皮肤基质 (ADM) 的生物相容神经形态器件. 这些设备为先进的生物电子应用提供了超低功耗和高稳定性.

关键词:
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科学领域:

  • 生物材料科学 生物材料科学
  • 神经科学是一个神经科学.
  • 电子工程 电子工程

背景情况:

  • 神经形态生物电子在生物相容性,功率和稳定性方面面临挑战.
  • 将电子与生物系统集成,需要强大而安全的材料.

研究的目的:

  • 开发使用非细胞皮肤基质 (ADM) 的生物相容神经形态设备.
  • 探索ADM在超低功率,高稳定性生物电子应用中的潜力.

主要方法:

  • 通过超临界CO2提取从猪衍生的ADM制造神经形态设备.
  • 设备生物相容性,离子通道仿真和突触可塑性的表征.
  • 开发一种类似于大脑的忘记算法,用于节能计算.

主要成果:

  • ADM 设备具有出色的生物相容性和天然原基架的保存.
  • 设备模拟生物离子通道,具有温度和pH值的灵敏度.
  • 经过证明的超低工作电压 (1mV,理论上是59μV) 和高耐久性 (>4x10^4周期).
  • 通过忘记算法实现了7J/事件的能量效率和成功的复杂计算.

结论:

  • 基于ADM的神经形态设备为植入式生物接口提供了一个有前途的解决方案.
  • 这些设备通过协同硬件和软件的方法实现了高能效的计算.
  • 该研究强调ADM作为一种用于先进神经形态生物电子学的多功能材料.