title: Photonic DNA-chromophore nanowire networks: harnessing multiple supramolecular assembly modes.
abstract: Photonic DNA nanostructures are typically prepared by the assembly of multiple sequences of long DNA strands that are conjugated covalently to various dye molecules. Herein we introduce a noncovalent method for the construction of porphyrin-containing DNA nanowires and their networks that uses the programmed assembly of a single, very short, oligodeoxyribonucleotide sequence. Specifically, our strategy exploits a number of supramolecular binding modalities (including DNA base-pairing, metal-ion coordination, and β-cyclodextrin-adamantane derived host-guest interactions) for simultaneous nanowire assembly and porphyrin incorporation. Furthermore, we also show that the resultant DNA-porphyrin assembly can be further functionalized with a complementary "off-the-shelf" DNA binding dye resulting in photonic structures with broadband absorption and energy transfer capabilities.
authors.affiliation: Department of Chemistry, Tulane University, 2015 Percival Stern Hall, New Orleans, Louisiana, 70118, United States.
authors.forename: Nan
authors.initials: N
authors.lastname: Zhang
authors.forename: Xiaozhu
authors.initials: X
authors.lastname: Chu
authors.forename: Maher
authors.initials: M
authors.lastname: Fathalla
authors.forename: Janarthanan
authors.initials: J
authors.lastname: Jayawickramarajah
mesh_terms: D004247:DNA / Q000737:chemistry*; D008956:Models, Chemical; D053770:Nanowires / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*
chemical_list: D011166:Porphyrins; D004247:DNA
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