A kind of epidermal electrode and its application for epidermal signal acquisition
A technology of signal acquisition and epidermis, which is applied in application, medical science, diagnosis, etc., can solve the problems of complex electrode structure, poor fit of human epidermis, and deviation of electrical signal information, and achieve good air permeability, good biocompatibility, light weight effect
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Embodiment 1
[0040] In this example, the gold nanonetwork obtained by the grain boundary transfer method is used as the epidermal electrode material, the gold nanonetwork is patterned by the method of sugar transfer, and the flexible conductive silver nanometer is used as the flexible electrode interconnected with external electronic components or test circuits. , the schematic diagram of the preparation of gold nano-network epidermal electrodes is shown in figure 1 (a), including the following steps:
[0041] (1) Transfer the gold nano-network obtained by grain boundary transfer method to flexible polydimethylsiloxane;
[0042] (2) Using a laser cutting machine to prepare a flexible plastic mask for patterning of gold nano-networks;
[0043] (3) patterning and transferring the gold nano-network by the method of sucrose transfer, placing a plastic mask with the desired pattern on the gold nano-network, and casting the molten sucrose film;
[0044] (4) When the sucrose was cooled to 25°C ...
Embodiment 2
[0052] The preparation method of the silver nanowire composite grid of the present embodiment is a nanowire spray method, and the preparation method includes the following steps:
[0053] (1) Transfer the silver nanonetwork obtained by the nanowire spraying method to the flexible polydimethylsiloxane;
[0054] (2) Using a laser cutting machine to prepare a flexible plastic mask for patterning of silver nano-networks;
[0055] (3) patterning and transferring the silver nano-network by the method of sucrose transfer, placing a plastic mask with the desired pattern on the silver nano-network, and casting the molten sucrose film;
[0056] (4) When the sucrose was cooled to 25°C and solidified, the sucrose became viscous enough to be peeled off the silver nanonetwork and transferred to the skin; finally, the sucrose was washed off with deionized water to obtain an epidermis with a silver nanonetwork structure electrode.
[0057] The skin electrode of the silver nano-network struc...
Embodiment 3
[0059] The preparation method of the copper nanowire composite grid in this embodiment is an electrospinning method, and the preparation method includes the following steps:
[0060] (1) Prepare a polyvinyl alcohol composite network structure with a diameter of about 200 nm by electrospinning;
[0061] (2) vapor-depositing a layer of copper with a thickness of 30 nm on the obtained polyvinyl alcohol composite network to obtain a copper nano-network electrode based on electrospinning;
[0062] (3) Transfer the copper nano-network obtained by electrospinning to the flexible polydimethylsiloxane;
[0063] (4) Using a laser cutting machine to prepare a flexible plastic mask for patterning of copper nano-networks;
[0064] (5) The copper nano-network is patterned and transferred by a self-adhesive tape template transfer method to obtain a skin electrode with a copper nano-network structure.
[0065] The skin electrode of the copper nano-network structure prepared by the above met...
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