US Patent 8226863 - Production of 3D product having a nanoporous surface

http://www.freepatentsonline.com/8226863.html

This patent from Empire Technology Development teaches a way to manufacture nanoporous surfaces which may be useful for culturing cells and emulating biological organs. Claim 1 reads:

1. A method for producing a three-dimensional product having a nanoporous surface, the method comprising:

preparing a yarn having a surface consisting of a material in which a plurality of nanoparticles is dispersed in a matrix;

knitting or weaving the yarn to form a knitted fabric or a woven fabric; and

immersing the knitted fabric or the woven fabric in a liquid which dissolves the nanoparticles but does not dissolve the matrix.