A nerve fiber-shaped device, a chip prepared from the device and its preparation method

Abstract

The invention claims to protect a nerve fiber-shaped device, a chip prepared from the device and a preparation method, and belongs to the technical field of artificial nerve fiber-shaped chips; the technical problem to be solved is: to provide a nerve fiber-shaped device and a chip structure prepared from the device and the improvement of the preparation method; the technical solution adopted to solve this technical problem is: comprising a shell and fibers, the shell is arranged on the outside of the fiber, the fiber is a multi-layer structure, and the fiber is sequentially provided with a skeleton, the first A metal wire, an organic semiconductor layer, a second metal wire, a gel layer, and a third metal wire; the first metal wire is wound spirally on the outside of the skeleton; the organic semiconductor layer covers the outside of the skeleton and the first metal wire, and the second metal The wire is spirally wound outside the organic semiconductor layer; the gel layer covers the organic semiconductor layer and the outside of the second metal wire, and the third metal wire is spirally wound outside the gel layer; the invention is applied to biosensing.

Description

technical field [0001] The invention claims to protect a nerve fiber-shaped device, a chip prepared from the device and a preparation method, belonging to the technical field of artificial nerve fiber-shaped chips. Background technique [0002] Organic electrochemical transistors (OECTs) have great application potential in the field of bioelectronics due to their advantages of low operating voltage, flexibility and good biocompatibility; the basic element in the biological nervous system is the synapse, which is used in the Numerous neurons transmit spatiotemporal information; relying on adjustable synaptic weights, the biological nervous system can perform a series of functions with high efficiency and low energy consumption, including perception, transmission and response to external stimuli. Inspired by this, artificial synapses can be used to receive, respond and output information. [0003] At present, in the field of artificial sensing systems, researchers have report...

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Problems solved by technology

[0004] At present, three-terminal organic electrochemical transistors have been widely used in the field of bioelectronics, but real-world applications have unique requirements for device performance; Ions can shorten the response time (τ). In addition, geometric engineering can effectively improve the function of OECTs. For example, cross-shaped photosensitive elements have recently been used for highly sensitive biosensing of deoxyribonucleic acid (DNA); in integrated circuits, integrated Devices always require a smaller gate voltage (VTH) to reduce power supply, especially for portable or wearable devices; in terms of structure, OECTs require extremely short channel distances, planar devices are difficult to achieve, and vertical distribution is usually adopted structure to shorten the distance of the channel, and the fiber-like three-dimensional OECTs sensor can be easily realized through the cross structure; in terms of wearability, it is difficult to integrate the device into clothes and textiles with the process of planar structure, and the fiber-like three-dimensional OECTs OECTs sensors can be easily combined with textiles through the cross structure and flexible characteristics. The current OECTs devices can only be used to simulate the function of synapses, but there is no good solution for the neural simulation of long axons.

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