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Exciton Delocalization in a DNA-Templated Organic Semiconductor Dimer Assembly.
ACS Nano
January 2022
Micron School for Materials Science and Engineering and Department of Electrical & Computer Engineering, Boise State University, Boise, Idaho 83725, United States.
A chiral dimer of an organic semiconductor was assembled from octaniline (octamer of polyaniline) conjugated to DNA. Facile reconfiguration between the monomer and dimer of octaniline-DNA was achieved. The geometry of the dimer and the exciton coupling between octaniline molecules in the assembly was studied both experimentally and theoretically.
View Article and Find Full Text PDFDNA-Dye-Conjugates: Conformations and Spectra of Fluorescence Probes.
PLoS One
August 2017
Computer-Chemistry-Center and Interdisciplinary Center for Molecular Materials, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
Extensive molecular-dynamics (MD) simulations have been used to investigate DNA-dye and DNA-photosensitizer conjugates, which act as reactants in templated reactions leading to the generation of fluorescent products in the presence of specific desoxyribonucleic acid sequences (targets). Such reactions are potentially suitable for detecting target nucleic acids in live cells by fluorescence microscopy or flow cytometry. The simulations show how the attached dyes/photosensitizers influence DNA structure and reveal the relative orientations of the chromophores with respect to each other.
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