Fig. 2From: Aptamers as an approach to targeted cancer therapySchematic illustration of the targeted delivery of drugs using a functionalized aptamer. A Aptamer-drug conjugates can be created by intercalating drugs and aptamers or by using a linker. B Bivalent aptamers, targeting different biomarkers, linked by dsDNA to load drugs. C Aptamer-functionalized nanoparticles are designed for targeted drug deliveryBack to article page