Patent ID: 9233190
Filing Date: 2016-01-12
CPC Classification: A61L,B82Y

Claim Text:
1. A culture substrate, comprising: a carbon nanotube structure comprising a pressed carbon nanotube film comprising a plurality of carbon nanotubes, an angle between a primary alignment direction of the carbon nanotubes and a surface of the pressed carbon nanotube film is about 15 degrees, and the carbon nanotube structure is a free-standing structure; a hydrophilic layer directly located on a surface of the carbon nanotube structure, wherein the hydrophilic layer is configured to culture a plurality of neurons thereon such that the hydrophilic layer is located between the carbon nanotube structure and the plurality of neurons, a material of the hydrophilic layer is an inorganic material selected from the group consisting of silicon dioxide, titanium dioxide, iron oxide, and any combination thereof, and the hydrophilic layer has a thickness in a range from about 1 nm to about 50 nm; and a polar layer located on a surface of the hydrophilic layer away from the carbon nanotube structure, wherein the polar layer is made of polyetherimide.