Recombinant Antibody Network 1 article published in JoVE Immunology and Infection Scalable High Throughput Selection From Phage-displayed Synthetic Antibody Libraries Shane Miersch1,2, Zhijian Li1,2, Rachel Hanna1,2, Megan E. McLaughlin1,2, Michael Hornsby1,3, Tet Matsuguchi1,3, Marcin Paduch1,4, Annika Sääf1,4, Jim Wells1,3, Shohei Koide1,4, Anthony Kossiakoff1,4, Sachdev S. Sidhu1,2 1The Recombinant Antibody Network, 2The Banting and Best Department of Medical Research, University of Toronto, 3Antibiome Center, University of California, San Francisco at Mission Bay, 4Department of Biochemistry and Molecular Biology, The University of Chicago A method is described with visual accompaniment for conducting scalable, high throughput selections from phage-displayed combinatorial synthetic antibody libraries against hundreds of antigens simultaneously. Using this parallel approach, we have isolated antibody fragments that exhibit high affinity and specificity for diverse antigens that are functional in standard immunoassays.