Novel method for introduction of an exogenous genetic substance or a physiologically active compound

摘要

A novel method for introduction of an exogenous genetic substance or a physiologically active compound into cells is provided according to this invention. This method can realize introduction of an exogenous genetic substance or a physiologically active compound of large size with a large amount. Such substance is immobilized to beads of sphere fine particles having a particle size of 0.01 &mgr;m to 10 &mgr;m, and bio-beads thus produced are introduced into cells. Bio-beads comprising calcium alginate are particularly useful for the purpose of the present invention.