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Ionic transistor using ion exchange membranes
Lab on a Chip ( IF 6.1 ) Pub Date : 2022-06-18 , DOI: 10.1039/d2lc00312k
Chaojun Cheng 1 , Mohamed Z Rashed 2 , Gene Y Fridman 2, 3, 4
Affiliation  

Ionic transistors can be used to modulate ionic current in a way that is analogous to their electronic counterparts. An ionic transistor can reversibly change its ionic conduction to control ionic current by injecting electrical charges. To facilitate its applications in biomedical devices (e.g., controlled drug delivery, rectification of ionic current, and signal processing), an ionic transistor should maintain high performance of ionic current control within physiological solutions (e.g., 0.9% NaCl) for long durations. Here, we introduce an ionic transistor using cation and anion exchange membranes (CEM and AEM). It could impose a 10× impedance change in a channel filled with 0.9% NaCl solution and we observed a stable modulation of ionic current throughout a test of 1000 cycles of on/off switching of the ionic transistor.

中文翻译:


使用离子交换膜的离子晶体管



离子晶体管可用于以类似于电子晶体管的方式调制离子电流。离子晶体管可以可逆地改变其离子传导,从而通过注入电荷来控制离子电流。为了促进其在生物医学设备中的应用(例如,受控药物输送、离子电流整流和信号处理),离子晶体管应在生理溶液(例如,0.9% NaCl)内长时间保持高性能的离子电流控制。在这里,我们介绍一种使用阳离子和阴离子交换膜(CEM 和 AEM)的离子晶体管。它可以在充满 0.9% NaCl 溶液的通道中施加 10 倍的阻抗变化,并且我们在离子晶体管 1000 个周期的开/关切换测试中观察到离子电流的稳定调制。
更新日期:2022-06-18
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