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@ARTICLE{Jochum:862390,
      author       = {Jochum, Clemens and Adžić, Nataša and Stiakakis,
                      Emmanuel and Derrien, Thomas L. and Luo, Dan and Kahl,
                      Gerhard and Likos, Christos N.},
      title        = {{S}tructure and stimuli-responsiveness of all-{DNA}
                      dendrimers: theory and experiment.},
      journal      = {Nanoscale},
      volume       = {11},
      number       = {4},
      issn         = {2040-3372},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {FZJ-2019-02718},
      pages        = {1604 - 1617},
      year         = {2019},
      abstract     = {We present a comprehensive theoretical and experimental
                      study of the solution phase properties of a DNA-based family
                      of nanoparticles - dendrimer-like DNA molecules (DL-DNA).
                      These charged DNA dendrimers are novel macromolecular
                      aggregates, which hold high promise in targeted
                      self-assembly of soft matter systems in the bulk and at
                      interfaces. To describe the behaviour of this family of
                      dendrimers (with generations ranging from G1 to G7), we use
                      a theoretical model in which base-pairs of a single DL-DNA
                      molecule are modeled by charged monomers, whose interactions
                      are chosen to mimic the equilibrium properties of DNA
                      correctly. Experimental results on the sizes and
                      conformations of DL-DNA are based on static and dynamic
                      light scattering; and molecular dynamics simulations are
                      employed to model the equilibrium properties of DL-DNA,
                      which compare favorably to the findings from experiments
                      while at the same time providing a host of additional
                      information and insight into the molecular structure of the
                      nanostructures. We also examine the salt-responsiveness of
                      these macromolecules, finding that despite the strong
                      screening of electrostatic interactions brought about by the
                      added salt, the macromolecules shrink only slightly, their
                      size robustness stemming from the high bending rigidity of
                      the DNA-segments. The study of these charged dendrimer
                      systems is an important field of research in the area of
                      soft matter due to their potential role for various
                      interdisciplinary applications, ranging from molecular cages
                      and carriers for drug delivery in a living organism to the
                      development of dendrimer- and dendron-based ultra-thin films
                      in the area of nanotechnology. These findings are essential
                      to determine if DL-DNA is a viable candidate for the
                      experimental realization of cluster crystals in the bulk, a
                      novel form of solid with multiple site occupancy.},
      cin          = {ICS-3},
      ddc          = {600},
      cid          = {I:(DE-Juel1)ICS-3-20110106},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551)},
      pid          = {G:(DE-HGF)POF3-551},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30311616},
      UT           = {WOS:000459910900062},
      doi          = {10.1039/C8NR05814H},
      url          = {https://juser.fz-juelich.de/record/862390},
}