One of the key applications of Fab phage display technology is in the production of Fab antibodies for therapeutic and diagnostic purposes. Through a process known as Fab antibody production, selected antibody fragments identified through phage display screening are further engineered and produced in various expression systems, including bacteria, yeast, or mammalian cells.

https://www.alphalifetech.com/page/Fab-Fc-Antibody-Libraries-Construction.html