First-order Judd-Ofelt optical characterization of DNA-Ln(3+) complexes

Bjorn Paulson; Gregor Sauer; Seungwuk Cheon; Sreekantha Reddy Dugasani; Kyunghwan Oh

doi:10.1117/12.2237633

13 September 2016 First-order Judd-Ofelt optical characterization of DNA-Ln³⁺ complexes

Bjorn Paulson, Gregor Sauer, Seungwuk Cheon, Sreekantha Reddy Dugasani, Kyunghwan Oh

Proceedings Volume 9928, Nanobiosystems: Processing, Characterization, and Applications IX; 99280N (2016) https://doi.org/10.1117/12.2237633
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Complexes formed of deoxyribose nucleic acid (DNA) and trivalent lanthanide ions (Ln³⁺) promise a combination of high optical gain and low optical loss in an organic polymer host matrix. However, there has been some dispute about the binding mechanism between the DNA helix and the positively-charged lanthanide ions. Here we introduce an attempt to resolve the mechanism for binding through Judd-Ofelt analysis on DNA-Eu³⁺, DNA-Tb³⁺, and DNA-Sm³⁺ to first order. From initial Judd-Ofelt parameters extrapolations can be made to the line strengths, Einstein coefficients, and fluorescence lifetimes.

Conference Presentation

Citation Download Citation

Bjorn Paulson, Gregor Sauer, Seungwuk Cheon, Sreekantha Reddy Dugasani, and Kyunghwan Oh "First-order Judd-Ofelt optical characterization of DNA-Ln³⁺ complexes", Proc. SPIE 9928, Nanobiosystems: Processing, Characterization, and Applications IX, 99280N (13 September 2016); https://doi.org/10.1117/12.2237633

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