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Preparation method of flexible medical silver electrode material

A silver electrode and flexible technology, applied in the field of medical materials, can solve the problems of shortened ion source life, low firmness, and small deposition area, and achieve the effects of strong designability, high peel strength, and high conductivity

Inactive Publication Date: 2010-04-14
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are the following disadvantages: 1) Only inert gas can be used, and the reaction gas will shorten the life of the ion source
2) The deposition area is small
But, under conventional electroless plating process condition, metal coating and polymer material surface are adhered together by weak van der Waals (Van der Waals) force, firm degree is relatively low (J.F.Silvain, et al.Thin Solid Films237 (1 -2) (1994) 164-171.)

Method used

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  • Preparation method of flexible medical silver electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Wash the polyamide sheet with an area of ​​5 cm × 10 cm with deionized water, dry it; place it in a 0.01% ethanol solution of 3-aminopropyltrimethoxysilane, soak it for 30 minutes, take it out, and use Rinse with ethanol and dry to obtain a surface-activated polyamide substrate.

[0023] Dissolve 7g of silver nitrate, 3mL of ammonia water, and 4g of potassium hydroxide in 500mL of deionized water, then dissolve 6g of glucose in 500mL of deionized water, after the dissolution is completed, mix the above solutions, add deionized water until the volume of the solution is 1L, and obtain Silver electroless plating solution.

[0024] Under the action of 120W, 40KHz ultrasonic waves, put the activated polyamide substrate in the above-mentioned plating solution, perform electroless plating at 25°C for 20 minutes, take it out, wash it with water, and dry it.

[0025] Put the electroless silver-plated polyamide substrate in simulated human body fluid, soak for 10 days, take it o...

Embodiment 2

[0027] A polyethylene terephthalate sheet with an area of ​​5 cm × 10 cm was washed with deionized water and dried; it was placed in an acetone solution of 0.1% 3-aminopropyltrimethoxysilane, soak for 60 minutes, take it out, rinse with acetone, and dry to obtain a surface-activated polyethylene terephthalate substrate.

[0028] Dissolve 5g of silver nitrate, 5mL of ammonia water, and 2g of potassium hydroxide in 500mL of deionized water, then dissolve 10g of glucose in 500mL of deionized water, after the dissolution is completed, mix the above solutions, add deionized water until the volume of the solution is 1L, and obtain Silver electroless plating solution.

[0029] Under the action of ultrasonic waves, put the activated polyethylene terephthalate substrate in the above-mentioned plating solution, perform electroless plating at 25° C. for 20 minutes, take it out, wash it with water, and dry it.

[0030] Place the polyethylene terephthalate substrate after electroless silv...

Embodiment 3

[0032]Wash the polyvinyl alcohol sheet with an area of ​​5 cm × 10 cm with deionized water, dry it; place it in a methanol solution of 1% 3-mercaptopropyltrimethoxysilane, soak it for 30 minutes, take it out, Rinse with methanol and dry to obtain a surface-activated polyvinyl alcohol substrate.

[0033] Dissolve 10g of silver nitrate, 5mL of ammonia water, and 4g of potassium hydroxide in 500mL of deionized water, then dissolve 10g of glucose in 500mL of deionized water, after the dissolution is completed, mix the above solutions, add deionized water until the volume of the solution is 1L, and obtain Silver electroless plating solution.

[0034] Under the action of ultrasonic waves, place the activated polyvinyl alcohol substrate in the above-mentioned plating solution, perform electroless plating at 25° C. for 20 minutes, take it out, wash it with water, and dry it.

[0035] The chemically silver-plated polyvinyl alcohol substrate is placed in simulated human body fluid, soa...

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Abstract

The invention pertains to the technical field of flexible electrode materials, and relates to a preparation method of a flexible medical silver electrode material, which specifically comprises the steps: firstly, the surface of a polymer material is modified, active groups are introduced on the surface, then chemical silvering is conducted under the action of ultrasonic wave; the active groups are connected with the silvering by chemical bonds, thus greatly improving the compactness of the silvering and the adhesiveness of the polymer material, and leading the peel strength of the silvering to be larger than 40 N / cm; and by test of simulated body fluid, the prepared flexible electrode material has extremely high corrosion resistance. The electrode material has high safety coefficient, andcan be widely applied to intervention therapy in clinical medicine such as repeat treatment of esophagus cancer, congenital heart disease, and the like.

Description

technical field [0001] The invention belongs to the technical field of medical materials, and in particular relates to a preparation method of a flexible medical silver electrode material. Background technique [0002] Interventional therapy is a new treatment method between internal medicine and surgery. It is guided by the images on the TV screen, using catheters, balloons, stents and other equipment made of special materials, through arterial blood vessels, venous blood vessels, etc. , esophagus and other human cavity or acupuncture needles on the human body to establish a channel, enter the diseased part, and use electrophysiological stimulation, arteriovenous expansion and other means to diagnose and treat diseases. This therapy does not require surgery, only treats the lesions, has small trauma, quick effect, short time, small side effects, and can be repeated for certain diseases. Interventional therapy has a remarkable effect on the treatment of congenital heart dis...

Claims

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Application Information

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IPC IPC(8): A61N1/05C23C18/42C23C18/30
Inventor 吕银祥
Owner FUDAN UNIV
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