Biocompatible electrode structure and method for producing same, and device and method for producing same

A technology of electrode structure and manufacturing method, which is applied to printed circuit parts, prostheses, sensors, etc., can solve problems such as difficult biological information monitoring, unstable electrode contact, and unstable electrical signals, so as to improve detection sensitivity, The effect of reducing impedance and reducing antibody reaction

Inactive Publication Date: 2016-03-30
JAPAN SCI & TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if metals such as Pt and Au are in direct contact with tissues or cells in a living body, an inflammatory reaction occurs between the metal and the tissue or cells due to the antibody reaction of the living body cells, so there is a problem that it is difficult to monitor biological information for a long time
In addition, the surface of living body cells has surface undulations such as wrinkles, and electrodes made of metal are generally rigid, and there is a problem that they cannot follow local changes in surface shape.
Therefore, there are problems such as unstable electrode contact and unstable electrical signal.

Method used

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  • Biocompatible electrode structure and method for producing same, and device and method for producing same
  • Biocompatible electrode structure and method for producing same, and device and method for producing same
  • Biocompatible electrode structure and method for producing same, and device and method for producing same

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no. 2 Embodiment approach

[0154] In the following description, the content described in the biocompatible electrode structure related to the first embodiment is also applicable to the content of the present embodiment, and the content described in the first embodiment may be omitted. The case of biocompatible electrode structures.

[0155] The method for manufacturing a biocompatible electrode structure according to the second embodiment includes the step of forming a first polymer medium on an electronic circuit having a plurality of electrodes, and the first polymer medium contains The first polymer layer of conductive nanomaterials; the process of forming a second polymer medium on the first polymer medium, and the second polymer medium does not contain conductive nanomaterials or is different from the first polymer medium. a low density polymer layer comprising a second polymer layer of conductive nanomaterial; processing the first polymer medium and the second polymer medium such that the first po...

Embodiment

[0192] Figure 4 (a) represents the composition of N, N-diethyl-N-methyl-N-(2-methoxyethyl) ammonium tetrafluoroborate (DEMEBF 4 A photograph of a composition of carbon nanotubes dispersed in polyrotaxane covered with molecules of ) before ultraviolet (UV) curing. It was found that the obtained composition was gel-like. It should be noted that "gel" in this specification refers to a liquid state with fluidity, and refers to a state of losing fluidity or a state of substantially losing fluidity.

[0193] The biocompatible electrode structure according to the present invention can be produced using the composition. That is, the composition can be coated on an electronic circuit, and the carbon nanotubes can be biased under the surface with a magnet, and can be cured to produce a biocompatible electrode structure. In addition, the composition can be coated on an electronic circuit, a layer composed of only polyrotaxane can be laminated thereon, and these can be patterned to pr...

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Abstract

This biocompatible electrode structure can be connected to an electronic circuit, and is obtained by dispersing a conductive nanomaterial in a polymer medium, wherein the conductive nanomaterial is dispersed in the polymer medium at lower density on the side opposite the connection surface with the electronic circuit than on the connection surface side.

Description

technical field [0001] The present invention relates to a biocompatible electrode structure and its manufacturing method, and a device and its manufacturing method. [0002] This application claims priority based on Japanese Patent Application No. 2013-149663 for which it applied in Japan on July 18, 2013, and uses the content here. Background technique [0003] Flexible electronics using organic semiconductors has attracted attention in recent years as a means of mounting devices made of soft materials on the surface or inside of living organisms and directly obtaining biological information from cells or tissues. Electrical contact with tissues or cells inside the living body is mainly performed through metals such as Pt and Au (Non-Patent Documents 1 and 2). [0004] However, if metals such as Pt and Au are in direct contact with tissues or cells in a living body, an inflammatory reaction occurs between the metal and the tissue or cells due to the antibody reaction of th...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A61B5/0408A61B5/0478A61B5/0492A61L27/00A61B5/296
CPCA61L27/50A61L2400/12H01B1/24A61B5/6846A61B5/6867A61B5/686A61B2562/0214A61L31/126A61L2420/02A61L2420/04H05K1/09
Inventor染谷隆夫关谷毅鹰野玲美
OwnerJAPAN SCI & TECH CORP