Six-Helix Bundles Designed from DNA Mathieu, Frederick ; Liao, Shiping ; Kopatsch, Jens ; Wang, Tong ; Mao, Chengde ; Seeman, Nadrian C. Abstract Publication: Nano Letters Pub Date: April 2005 DOI: 10.1021/nl050084f Bibcode: 2005NanoL...5..661M