The University of Texas System

Korea Advanced Institute of Science and Technology

Innotherapy Inc.

Seong Woo Ryu

Duck Joo Yang

Soon Hyung Hong

Moon Sue Lee

Abdelaziz Rahy

Sun Ha Paek

Hae Shin Lee

Mi Young Koh

Disclosed is a carbon material for a neurostimulation electrode. The carbon material is composed of a carbon fiber. The carbon fiber has a thickness of 1 to 1000 &#x3bc;m, a linear density of 0.01 to 5.00 g/cm, and an aspect ratio of 100 to 1,000,000. Particularly, the carbon fiber material can be obtained by dry spinning carbon nanotubes, followed by liquid-based densification. The carbon material can be used in the fields of deep brain stimulation, spinal cord stimulation, etc. Also disclosed are an electrode assembly and a neurostimulation device, each including the carbon material.

Bio-implantable electrode assembly

The present invention provides a method of making a carbon nanotubes fiber by providing a polyethylene terephthalate substrate; contacting the polyethylene terephthalate substrate with a polyvinyl alcohol polymer solution to form a polyvinyl alcohol polymer layer on the polyethylene terephthalate substrate; contacting the polyvinyl alcohol polymer layer with a carbon nanotube solution, wherein the carbon nanotubes solution comprises one or more carbon nanotubes; forming a nanotube layer on the polyvinyl alcohol polymer layer; delaminating the polyvinyl alcohol polymer layer from the polyethylene terephthalate substrate to release a composite fiber layer; stretching the composite fiber layer; and drying the composite fiber layer.

Fabrication method of composite carbon nanotube fibers/yarns

Growing community of inventors

Seoul, South Korea

Seong Woo Ryu