【最新成果】一种精确控制神经活动的光电器件，有柔性，很耐用

海归学者发起的公益学术平台

分享信息，整合资源

交流学术，偶尔风月

中国上海交通大学Jingquan Liu等研究成果

科学家们最近研究出了一种可以植入在大鼠大脑中的柔性器件，这种器件可通过光线精确地打开大鼠的神经细胞并同步记录它们的活动，而且比较耐用。中国上海交通大学的Jingquan Liu等研究者将稳定的引线键合型微LED和改良的微电极阵列结合起来，设计出这种新型的器件，能够比目前在光遗传学中使用的光纤更精确地定位到局部大脑皮层。在这领域的研究中，科学家们是通过基因改变神经细胞来产生光敏蛋白质，从而让他们能通过光线来控制神经活动。该研究对于治疗帕金森病和抑郁症等疾病的有所帮助。经过3个月的浸泡测试，反复按压摩擦5000次，新设备仍保持着良好的性能。这是一种在多功能光遗传领域很有用的工具，并且可能和无线技术进行集成在一起，具有较好的前景。

A durable, flexible device can be implanted on rat brains to precisely turn on nerve cells using light and synchronously record their activities. Jingquan Liu and colleagues from Shanghai Jiao Tong University in China combined reliable wire-bonding micro-LED and modified microelectrode arrays to design a device that can more precisely target local brain cortex with light than the currently used optic fibers in optogenetics. In this field of research, scientists genetically alter nerve cells to produce light-sensing proteins, allowing them to control nerve activity with light. This could lead to advancements in the treatment of diseases like Parkinson’s and depression. The new device retains good performance after 3 months of soaking test and repeated pressing and friction for 5000 times. It is a useful multifunctional optogenetics tool and potentially integrated with wireless technology.

Related paper: Flexible polyimide-based hybrid opto-electric neural interface with 16 channels of micro-LEDs and electrodes

Microsystems & Nanoengineering 4, Article number: 27 (2018)

doi:10.1038/s41378-018-0027-0

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