Table 2.

Bispecific antibody expression efficiency of the same construct

	Transfection reagent	Yield (mg/l)	Price ($/mg protein)	Costs ($/l media and transfection reagent)
	–
	PEI	7	42	305
	–
	ExpiFectamine	13	106	1380

The costs per transfected liter of media includes the cost of Expi293 media and PEI or ExpiFectamine

Here, results are shown from experiments performed at the same time to compare ExpiFectamine and PEI