Bio Oriented Nanoporous Materials for Perm-Selective Ion Transportation

Nanoporous structure has been actively applied for various application such as desalination, water purification, electro-chemical cell or bio applications. Recently, easy way to fabricate nanoporous membrane has been developed but it was still not applicable for bio applications because of bio-compatibility. Hydrogel was one of the known material for bio-compatible membrane, but it was hard to control. In this work, we found several candidates for bio degradable nanoporous membrane in the living organism; human nail, hen egg yolk, and albumen. The nanofluidic functionality was verified by ion concentration polarization phenomena. Surface charge of each material was estimated by conductance profile.