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3D printer, artificial neuron and preparation method of artificial neuron

A 3D printer, neuron technology, applied in additive processing, medical science, prosthesis, etc., can solve the problems of unpreparable structure, external environment interference, difficult packaging, etc., to break through the complexity of product structure and improve environmental tolerance sexual effect

Pending Publication Date: 2022-07-12
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disclosed preparation method still has the knowledge of those skilled in the art that only two-dimensional or three-dimensional structures arranged in a regular period can be produced. At the same time, due to the limitations of the demoulding and mold-turning process, many structures cannot be prepared. At the same time, when it comes to liquid electrolyte materials However, it is difficult to package and is seriously disturbed by the external environment, which poses a great challenge to the sensitivity and manufacturing difficulty of neurons.

Method used

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  • 3D printer, artificial neuron and preparation method of artificial neuron
  • 3D printer, artificial neuron and preparation method of artificial neuron
  • 3D printer, artificial neuron and preparation method of artificial neuron

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Experimental program
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Effect test

Embodiment 1

[0076] This embodiment provides a method for preparing an artificial neuron with a tactile perception learning function using the above-mentioned 3D printer, including the following steps:

[0077] (1) After mixing PDMS SYLGARD 184 component A and component B in a ratio of 10:1, fully stir to prepare a slurry for printing the substrate and the encapsulation layer.

[0078] (2) Load the substrate printing paste prepared in step (1) into the barrel, move the ordinary nozzle 103 with a nozzle diameter of 200 μm to the forming position, switch the solenoid valve 131 through the first high-pressure gas pipe 132 to extrude the air pressure When it is 400kPa, the PDMS in the first barrel 123 is extruded, and two substrate layers are printed, and the thickness of the printed layer is 100 μm. After the printing of the substrate layer is completed, the temperature of the forming substrate is raised to 120°C, and the substrate is cooled after the substrate is solidified.

[0079] (3) The ...

Embodiment 2

[0089] (1) After mixing the PDMS SE 1700 A component and the B component in a ratio of 10:1, fully stir to prepare a slurry for printing the substrate and the encapsulation layer.

[0090] (2) Load the substrate printing paste prepared in step (1) into the barrel, move the ordinary nozzle 103 with a nozzle diameter of 400 μm to the forming position, and then switch the solenoid valve 131 through the first high-pressure gas pipe 132 to extrude the air pressure When the value is 500 kPa, the PDMS in the first barrel 123 is extruded to print one substrate layer with a thickness of 300 μm. After the printing of the substrate layer is completed, the temperature of the forming substrate is raised to 120°C, and the substrate is cooled after the substrate is solidified.

[0091] (3) The carbon nanotubes were added to a 0.1 wt % aqueous solution of cetyltrimethylammonium bromide at a ratio of 0.5 mg / mL, and sonicated for 120 min. The dispersed carbon nanotube slurry and PDMS were adde...

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Abstract

The invention belongs to the related technical field of artificial neuron preparation, and discloses a 3D printer, an artificial neuron and a preparation method thereof.The artificial neuron comprises a tactile receptor, a transmission unit and an artificial synaps.The tactile receptor sequentially comprises a first electrode layer, a sensing layer and a second electrode layer from bottom to top; the sensing layer is arranged between the first electrode layer and the second electrode layer, and the sensing layer comprises a conical sensing layer and a tubular sensing layer; the artificial synapse sequentially comprises an electrolyte layer, a semiconductor layer and a packaging layer from inside to outside and is provided with a source electrode, a drain electrode and a grid electrode, the source electrode and the drain electrode are connected with the semiconductor layer, and the grid electrode is connected with the electrolyte layer; and the first electrode layer or the second electrode layer is connected to the artificial synapse through a transmission unit. According to the invention, multi-dimensional mechanical sensing artificial neurons can be obtained, the sensitivity is higher, and the application range is wider.

Description

technical field [0001] The invention belongs to the technical field related to the preparation of artificial neurons, and more particularly, relates to a 3D printer, an artificial neuron and a preparation method thereof. Background technique [0002] Biotactile neurons have the functions of receiving stimulation, transmitting information and perceiving learning. The sense of touch is that the receptors on the tactile neurons in the skin receive signals and transmit the signals along the axons to the synapses, and the synchronous or asynchronous stimulation signals are further integrated by the postsynaptic neurons to obtain multi-level tactile perception. The artificial neuron based on the biological tactile neuron mechanism is composed of tactile receptors, transmission units and artificial synapses. The tactile receptors use various electronic devices to change the resistance, capacitance or inductance under external stimuli to convert external stimuli into A class of dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/02A61N1/05B33Y70/10B33Y80/00
CPCA61F2/02A61N1/0551B33Y80/00B33Y70/10
Inventor 文世峰耿鹏周燕史玉升蒋承剑陈道兵汤思晗
Owner HUAZHONG UNIV OF SCI & TECH
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