Prof. Steinberg scientific interest, for about three decades, is in the area of biofilms (biofilms associated diseases). He is investigating the biofilms from aspects as: quorum sensing, resistant bacteria, gene expression. His is integrating basic science with applied science finding novel means to affect biofilms. He is working closely with clinicians to find the accurate drug and drug delivery to biofilm-associated diseases. Steinberg has many patents of which one has evolved into a commercial product manufactures in Israel and sold worldwide (PerioChip).
Steinberg is a member of the Cannabis Research Center of the Hebrew University. He has been leading the field of anti-microbial effects of cannabinoids.