A soft-matter interface-based memristor and method of use thereof

By designing a memristor based on a soft matter interface and modulating gas-liquid interface fluctuations with an electric field, the problems of high fabrication difficulty and poor biocompatibility of existing memristors are solved. This enables the transformation of electrical signals and biological signals of low-cost, flexible memristors to be similar, making them suitable for brain-computer interfaces and bionics.

CN115942863BActive Publication Date: 2026-05-29NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Application Number
CN202211528240.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-30
Publication Date
2026-05-29
Estimated Expiration
2042-11-30

AI Technical Summary

Technical Problem

Existing memristor devices are subject to demanding manufacturing processes and high costs. Most of these devices require an additional power source and have poor biocompatibility, which limits their application in brain-computer interfaces and bionics.

Method used

By employing a memristor based on a soft matter interface, and encapsulating a single-channel PDMS block, a composite-channel PDMS block, and an intermediate layer, the device achieves flexibility and biocompatibility by utilizing the changes in nanochannel width between micron bubbles and channel walls, combined with electric field modulation of gas-liquid interface fluctuations, thus avoiding the need for an additional energy source.

Benefits of technology

A low-cost, flexible, and biocompatible memristor is provided, which can switch between three states: ohmic resistance, diode, and memristor under an applied electric field. The electrical signal is similar to the biological synaptic signal, making it suitable for brain-computer interface and bionics.

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Abstract

The application discloses a kind of based on soft material interface memristor and its use method, including single-channel PDMS block, composite channel PDMS block and intermediate layer;Composite channel PDMS block is opened with cross structure channel and second single straight channel, cross structure channel is communicated with second single straight channel, and one end of cross structure channel includes at least two entrances, and composite channel PDMS block is covered with intermediate layer, and through-hole is opened in intermediate layer, and intermediate layer is covered with single-channel PDMS block, and first single straight channel is opened in single-channel PDMS block, and single-channel PDMS block, intermediate layer and composite channel PDMS block layer encapsulation are integrated structure, the first single straight channel and cross structure channel other end cross coincide, and cross coinciding position corresponds with the position of through-hole of intermediate layer.Based on the device of channel width adjustment, the similarity of generated electrical signal and biological synapse signal is extremely high, combined with the characteristics of biological affinity, so that the device has wide application prospect in brain-computer interaction, bionics, intelligent wear and other fields.
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