@article{HeckPrinzDatheetal.2017,
  author    = {Heck, Christian and Prinz, Julia and Dathe, Andre and Merk, Virginia and Stranik, Ondrej and Fritzsche, Wolfgang and Kneipp, Janina and Bald, Ilko},
  title     = {Gold Nanolenses Self-Assembled by DNA Origami},
  series = {ACS Photonics},
  volume    = {4},
  journal   = {ACS Photonics},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {2330-4022},
  doi       = {10.1021/acsphotonics.6b00946},
  pages     = {1123 -- 1130},
  year      = {2017},
  abstract  = {Nanolenses are self-similar chains of metal nanoparticles, which can theoretically provide extremely high field enhancements. Yet, the complex structure renders their synthesis challenging and has hampered closer analyses so far. Here, DNA origami is used to self-assemble 10, 20, and 60 nm gold nanoparticles as plasmonic gold nanolenses (AuNLs) in solution and in billions of copies. Three different geometrical arrangements are assembled, and for each of the three designs, surface-enhanced Raman scattering (SERS) capabilities of single AuNLs are assessed. For the design which shows the best properties, SERS signals from the two different internal gaps are compared by selectively placing probe dyes. The highest Raman enhancement is found for the gap between the small and medium nanoparticle, which is indicative of a cascaded field enhancement.},
  language  = {en}
}
@article{PrinzHeckElleriketal.2016,
  author    = {Prinz, Julia and Heck, Christian and Ellerik, Lisa and Merk, Virginia and Bald, Ilko},
  title     = {DNA origami based Au-Ag-core-shell nanoparticle dimers with single-molecule SERS sensitivity},
  series = {Nanoscale},
  volume    = {8},
  journal   = {Nanoscale},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {2040-3364},
  doi       = {10.1039/c5nr08674d},
  pages     = {5612 -- 5620},
  year      = {2016},
  abstract  = {DNA origami nanostructures are a versatile tool to arrange metal nanostructures and other chemical entities with nanometer precision. In this way gold nanoparticle dimers with defined distance can be constructed, which can be exploited as novel substrates for surface enhanced Raman scattering (SERS). We have optimized the size, composition and arrangement of Au/Ag nanoparticles to create intense SERS hot spots, with Raman enhancement up to 10(10), which is sufficient to detect single molecules by Raman scattering. This is demonstrated using single dye molecules (TAMRA and Cy3) placed into the center of the nanoparticle dimers. In conjunction with the DNA origami nanostructures novel SERS substrates are created, which can in the future be applied to the SERS analysis of more complex biomolecular targets, whose position and conformation within the SERS hot spot can be precisely controlled.},
  language  = {en}
}
@article{PrinzHeckElleriketal.2016,
  author    = {Prinz, Julia and Heck, Christian and Ellerik, Lisa and Merk, Virginia and Bald, Ilko},
  title     = {DNA origami based Au-Ag-core-shell nanoparticle dimers with single-molecule SERS sensitivity},
  series = {Nanoscale},
  journal   = {Nanoscale},
  number    = {8},
  publisher = {RSC Publishing},
  address   = {Cambridge},
  doi       = {10.1039/C5NR08674D},
  pages     = {5612 -- 5620},
  year      = {2016},
  abstract  = {DNA origami nanostructures are a versatile tool to arrange metal nanostructures and other chemical entities with nanometer precision. In this way gold nanoparticle dimers with defined distance can be constructed, which can be exploited as novel substrates for surface enhanced Raman scattering (SERS). We have optimized the size, composition and arrangement of Au/Ag nanoparticles to create intense SERS hot spots, with Raman enhancement up to 1010, which is sufficient to detect single molecules by Raman scattering. This is demonstrated using single dye molecules (TAMRA and Cy3) placed into the center of the nanoparticle dimers. In conjunction with the DNA origami nanostructures novel SERS substrates are created, which can in the future be applied to the SERS analysis of more complex biomolecular targets, whose position and conformation within the SERS hot spot can be precisely controlled.},
  language  = {en}
}
@misc{PrinzHeckElleriketal.2016,
  author    = {Prinz, Julia and Heck, Christian and Ellerik, Lisa and Merk, Virginia and Bald, Ilko},
  title     = {DNA origami based Au-Ag-core-shell nanoparticle dimers with single-molecule SERS sensitivity},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-89714},
  pages     = {5612 -- 5620},
  year      = {2016},
  abstract  = {DNA origami nanostructures are a versatile tool to arrange metal nanostructures and other chemical entities with nanometer precision. In this way gold nanoparticle dimers with defined distance can be constructed, which can be exploited as novel substrates for surface enhanced Raman scattering (SERS). We have optimized the size, composition and arrangement of Au/Ag nanoparticles to create intense SERS hot spots, with Raman enhancement up to 1010, which is sufficient to detect single molecules by Raman scattering. This is demonstrated using single dye molecules (TAMRA and Cy3) placed into the center of the nanoparticle dimers. In conjunction with the DNA origami nanostructures novel SERS substrates are created, which can in the future be applied to the SERS analysis of more complex biomolecular targets, whose position and conformation within the SERS hot spot can be precisely controlled.},
  language  = {en}
}