PDMS-based flexible electrode and preparation method thereof

Abstract

The invention provides a PDMS-based flexible electrode and a preparation method thereof. The preparation method comprises the following steps: S10, forming a flexible PDMS coating on a silicon wafer substrate; s20, forming a carbon nanotube layer on the surface of the nylon filter membrane; s30, transferring the carbon nano tube film to the flexible PDMS coating, and obtaining a first composite film; and S40, stripping the first composite film from the silicon wafer substrate, then cutting the first composite film into a required size, soaking the first composite film in an aqueous solution containing chloroauric acid and hydrochloric acid, performing electrochemical deposition, and forming a gold nanostructure layer on the first composite film to obtain the flexible electrode. According to the PDMS-based flexible electrode and the preparation method thereof, the flexible PDMS coating, the carbon nanotube layer and the gold nanostructure layer are sequentially formed on the silicon wafer substrate, the electrode structure is simple, the manufacturing process is simple, and the electrode has high electrochemical performance, mechanical flexibility, transparency and biocompatibility; the electrode can be widely applied to the fields of portable analysis equipment for clinical diagnosis, real-time illness state monitoring, human health monitoring and the like.

Description

technical field [0001] The invention relates to the technical field of electrochemical sensors, in particular to a flexible electrode based on PDMS and a preparation method thereof. Background technique [0002] Hydrogen peroxide is an important reactive oxygen species produced by cell metabolism and plays a key role in cell growth and signal transduction. Excessive production of hydrogen peroxide can cause various biological damages, leading to oxidative stress, cardiovascular disease, arteriosclerosis, Alzheimer's disease and cancer. Furthermore, hydrogen peroxide has also been shown to be involved in other biological processes such as endothelial tissue permeability, vascular homeostasis, and remodeling. Therefore, detection of hydrogen peroxide is of great value for elucidating its regulation on signal transduction pathways and developing new diagnostic strategies for diseases. [0003] At present, flexible and stretchable sensors based on physical signal monitoring ar...

AI Technical Summary

Problems solved by technology

However, compared with the current rapid development of physical sensors, electrochemical sensors have higher requirements on the conductivity and electrochemical inertness of materials, resulting in relatively slow development of flexible electrochemical devices.

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