Wireless optoelectronic devices can deliver light to targeted regions in the brain and modulate discrete circuits in an animal that is awake. Here, we propose a miniaturized fully implantable low-power optoelectronic device that allows for advanced operational modes and the stimulation/inhibition of deep brain circuits in a freely-behaving animal. The combination of low power control logic circuits, including a reed switch and dual-coil wireless power transfer platform, provides powerful capabilities for the dissection of discrete brain circuits in wide spatial coverage for mouse activity. The actuating mechanism enabled by a reed switch results in a simplified, low-power wireless operation and systematic experimental studies that are required for a range of logical operating conditions. In this study, we suggest two different actuating mechanisms by (1) a magnet or (2) a radio-frequency signal that consumes only under 300 µA for switching or channel selection, which is a several ten-folds reduction in power consumption when compared with any other existing systems such as embedded microcontrollers, near field communication, and Bluetooth. With the efficient dual-coil transmission antenna, the proposed platform leads to more advantageous power budgets that offer improved volumetric and angular coverage in a cage while minimizing the secondary effects associated with a corresponding increase in transmitted power.

中文翻译：

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用于大脑双通道调制的完全可植入的低功率高频范围光电器件。

无线光电设备可以将光传送到大脑中的目标区域，并调节清醒动物中的离散电路。在这里，我们提出了一种小型的完全可植入的低功率光电器件，该器件允许先进的操作模式以及对行为自由的动物的深层脑电路的刺激/抑制。低功率控制逻辑电路（包括磁簧开关和双线圈无线功率传输平台）的组合为强大的功能提供了强大的功能，可在较大的空间范围内对离散的大脑电路进行解剖，以进行鼠标活动。舌簧开关启用的致动机制可简化逻辑，低功耗无线操作，并进行一系列逻辑操作条件所需的系统实验研究。在这个研究中，我们建议两种不同的致动机制，分别是（1）磁铁或（2）射频信号，该信号在开关或通道选择时仅消耗300 µA以下的电流，与其他现有技术相比，其功耗降低了数十倍系统，例如嵌入式微控制器，近场通信和蓝牙。利用高效的双线圈传输天线，所提出的平台可带来更有利的功率预算，这些功率预算可改善笼中的体积和角度覆盖范围，同时将与发射功率相应增加相关的次级影响降至最低。与任何其他现有系统（例如嵌入式微控制器，近场通信和蓝牙）相比，功耗降低了数十倍。利用高效的双线圈传输天线，所提出的平台可带来更有利的功率预算，这些功率预算可改善笼中的体积和角度覆盖范围，同时将与发射功率相应增加相关的次级影响降至最低。与任何其他现有系统（例如嵌入式微控制器，近场通信和蓝牙）相比，功耗降低了数十倍。利用高效的双线圈传输天线，所提出的平台可带来更有利的功率预算，这些功率预算可改善笼中的体积和角度覆盖范围，同时将与发射功率相应增加相关的次级影响降至最低。