Carbon nanotubes (CNTs) coatings have been shown over the past few years as a promising material for neural interface applications. In particular, in the field of nerve implants, CNTs have fundamental advantages due to their unique mechanical and electrical properties. In this study, carbon nanotubes multi-electrode arrays (CNT-modified-Au MEAs) were fabricated based on gold multi-electrode arrays (Au-MEAs). The electrochemical impedance spectra of CNT-modified-Au MEA and Au-MEA were compared employing equivalent circuit models. In comparison with Au-MEA (17 Ω), CNT-modified-Au MEA (8 Ω) lowered the overall impedance of the electrode at 1 kHz by 50%. The results showed that CNT-modified-Au MEAs have good properties such as low impedance, high stability and durability, as well as scratch resistance, which makes them appropriate for long-term application in neural interfaces.

中文翻译：

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用于神经接口的碳纳米管修饰微电极阵列


碳纳米管（CNT）涂层在过去几年中已被证明是一种有前途的神经接口应用材料。特别是在神经植入领域，碳纳米管由于其独特的机械和电学性能而具有根本优势。在这项研究中，基于金多电极阵列（Au-MEA）制备了碳纳米管多电极阵列（CNT-modified-Au MEA）。采用等效电路模型比较了 CNT 修饰的 Au MEA 和 Au-MEA 的电化学阻抗谱。与 Au-MEA (17 Ω) 相比，CNT 改性的 Au MEA (8 Ω) 将电极在 1 kHz 下的整体阻抗降低了 50%。结果表明，CNT修饰的Au MEA具有低阻抗、高稳定性和耐用性以及耐刮擦性等良好性能，适合在神经接口中长期应用。