Microelectrode structure preparation device and method based on electrofluid reduction drop printing

Abstract

The invention discloses a microelectrode structure preparation device and method based on electrofluid reduction drop printing. A spraying opening is formed in the lower end of a glass nozzle, the reference end of a high-voltage output device is connected with a conductive metal wire, the conductive metal wire is arranged in a metal salt solution in the glass nozzle, a conductive substrate on a printing moving platform is connected with the high-voltage output end of the high-voltage output device, an electric field is generated between the conductive metal wire and the conductive substrate due to potential difference, and therefore the metal salt solution in the glass nozzle is sprayed in a liquid drop mode through the electric field, liquid drops fly to make contact with the conductive substrate, metal ions in the liquid drops obtain electrons through negative electrode potential to generate an electrochemical reduction reaction so as to form metal micro-columns, and the metal micro-columns are further combined with overpotential electrochemical deposition so that a microelectrode structure containing dendritic crystals can be rapidly generated. The microelectrode structure preparation device is simple in structure, a complex three-dimensional electrode structure can be prepared, the specific surface area of the microelectrode structure is increased, and the sensitivity of a prepared sensor is effectively improved.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes a new way to make tiny electrical devices called nanoelectricles (NE). These NE are small particles made up from materials like silver or carbon black mixed together. When these NEM'S come into contact with certain substances they react chemically reducing other metals such as iron oxide. By adjusting parameters settings and applying voltage sources, it becomes possible to create minute electronic components called nanopills. Nanotubbles formed when charged solvent evaporates out gradually become smaller until reaching their final size. They also act as support material within each component cell where there will hold them well before being filled with liquid redox solutions. Additionally, the patents describe methods for making MEMS elements using this technique.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the efficiency of making small devices that can measure biological signals accurately while also being able to be worn comfortably over time without sacrificing their functionality. Current techniques involve expensive processes like lithographic printing with photoactive material layers, but these are limited because they require multiple steps involving different chemicals and have limitations in terms of size and shape due to factors like resolution limits.

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