Miltenyi Biotec Inc. developed a wonderful separation system called MACS.
Their system uses super-paramagnetic microbeads that are only 50nm in
diameter. It allows you to do positive and negative selection of cell
populations. Finally, the microbeads are sub-microscopic and they do not
affect the light scattering of labeled cells. Their address is: 251
Auburn Ravine Rd., Auburn, CA 95603. Ph. 800-367-6227; FAX (916)-888-8925.
Good luck!
Marcella Sarzotti-Kelsoe
