Polyethylenimine Bioconjugates for Imaging and DNA Delivery In Vivo

Polyamine polymers are among the commonest polymers used in biomedicine. Among polyamine �polymers, polyethylenimine (PEI) may be used as an efficient delivery vehicle for nucleic acids (DNA, RNA, etc.) or employed as a versatile imaging probe in vivo. In this chapter, the preparation of various PEI bioconjugates will be fully explained and discussed.