Polyplus-transfection SA and Merck have entered a license agreement and extended supply agreement for Polyplus-transfection’s polyethylenimine (PEI) based transfection reagents. Financial terms were not disclosed. Polyplus-transfection will supply Merck sites worldwide with batches of high quality linear PEI transfection reagent. The reagent, formulated and subject to appropriate quality controls, helps ensure safe and reproducible protein production in medium to large scale. Merck also gains r...