Fig. 1From: DNA Tetrahedron Delivery Enhances Doxorubicin-Induced Apoptosis of HT-29 Colon Cancer CellsSchematic diagram of folic acid-DNA tetra-Dox, DNA tetra-Dox, and folic acid-DNA tetra. The single-strand DNA sequences of DNA tetrahedron were provided. The process of targeting for tumor cells, penetrating through the cellular membrane, and inserting the DNAs were depictedBack to article page