看看这篇文章,是否有些借鉴意义?
Size Fractionation of Metal Nanoparticles by Membrane Filtration, A. Akthakul, A. I. Hochbaum, F. Stellacci, A. M. Mayes, Advanced Materials
Volume 17, Issue 5, pages 532–535, March, 2005.
Abstract: A novel thin film composite nanofiltration (NF) membrane is fabricated by coating a conventional ultrafiltration membrane with a self-assembling amphiphilic graft copolymer. The NF membranes are used in the fractionation of gold nanoparticles to achieve a well-defined particle cutoff diameter and reduced size dispersity.