 | Nanotech 2008 Vol. 1
Nanotechnology 2008: Materials, Fabrication, Particles, and Characterization - Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 1
Chapter 2: Nano Materials & Composites |
Permeability and protein separations: functional studies of porous nanocrystalline silicon membranes | |
| Authors: | J. Snyder, M. Kavalenka, D. Fang, C. Striemer, P. Fauchet, J. McGrath |
| Affilation: | University of Rochester, US |
| Pages: | 333 - 335 |
| Keywords: | nanomembranes, protein separations |
| Abstract: | We have developed an ultrathin (15nm) freestanding nanoporous silicon based membrane [1]. This new material, termed porous nanocrystalline silicon (pnc-Si), is fabricated using standard photolithography techniques. Pore sizes can be tuned in a thermodynamically driven self-assembly step during pnc-Si manufacture. The intrinsic characteristics of this new material and its relatively facile fabrication make it superior to commercial membranes and other currently studied nanomembranes. Pnc-Si air and water flow rates are an order of magnitude higher than those reported of carbon nanotube membranes and commercial track etched membranes. We have employed pnc-Si membranes in protein separations, and because of the well defined pores, observe sharp molecular weight cutoffs of complex protein mixtures. Additionally we have used pnc-Si membranes to perform blood protein separations, and have observed separations by diffusion alone that are difficult for standard hemodialysis membranes to achieve. |
| ISBN: | 978-1-4200-8503-7 |
| Pages: | 1,118 |
| Hardcopy: | $159.95 |
| Order: | Mail/Fax Form |
| Up |
© 2013 Nano Science and Technology Institute. All Rights Reserved.
Terms of Use | Privacy Policy | Contact Us | Site Map
Terms of Use | Privacy Policy | Contact Us | Site Map