Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, 87317, I.R. Iran. Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, 1936773493, Tehran, Iran. r.ghahremanzadeh@yahoo.com. Abstract: In this study we have developed a simple, cheap, and rapid method for purification of 6×histidine-tagged recombinant proteins with high yields. The new immobil...