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@ARTICLE{Arteta:188389,
      author       = {Arteta, Marianna Yanez and Berti, Debora and Montis,
                      Costanza and Campbell, Richard A. and Eriksson, Caroline and
                      Clifton, Luke A. and Skoda, Maximilian W. A. and Soltwedel,
                      Olaf and Koutsioumpas, Alexandros and Baglioni, Piero and
                      Nylander, Tommy},
      title        = {{O}n the formation of dendrimer/nucleolipids surface films
                      for directed self-assembly},
      journal      = {Soft matter},
      volume       = {11},
      number       = {10},
      issn         = {1744-683X},
      address      = {London},
      publisher    = {Royal Soc. of Chemistry},
      reportid     = {FZJ-2015-01787},
      pages        = {1973-1990},
      year         = {2015},
      abstract     = {We describe the formation and structure of
                      nucleolipid/dendrimer multilayer films controlled by non-
                      covalent interactions to obtain biomaterials that exhibit
                      molecular recognition of nucleic acids. Layers of cationic
                      poly(amidoamine) (PAMAM) dendrimers of generation 4 and the
                      anionic nucleolipids 1,2-
                      dilauroyl-sn-glycero-3-phosphatidylnucleosides (DLPNs) based
                      on uridine (DLPU) and adenosine (DLPA) were first formed at
                      the silica–water interface. The PAMAM/DLPN layers were
                      then exposed to short oligonucleotides, polynucleotides and
                      single stranded DNA (ssDNA). The interfacial properties were
                      characterized using quartz crystal microbalance with
                      dissipation monitoring, attenuated total reflection Fourier
                      transform infrared spectroscopy and neutron reflectometry.
                      Both types of DLPN were found to adsorb as aggregates to
                      preadsorbed PAMAM monolayers with a similar interfacial
                      structure and composition before rinsing with pure aqueous
                      solution. Nucleic acids were found to interact with
                      PAMAM/DLPA layers due to base pairing interactions, while
                      the PAMAM/DLPU layers did not have the same capability. This
                      was attributed to the structure of the DLPA layer, which is
                      formed by aggregates that extend from the interface towards
                      the bulk after rinsing with pure solvent, while the DLPU
                      layer forms compact structures. In complementary experiments
                      using a different protocol, premixed PAMAM/ DLPN samples
                      adsorbed to hydrophilic silica only when the mixtures
                      contained positively charged aggregates, which is
                      rationalized in terms of electrostatic forces. The
                      PAMAM/DLPA layers formed from the adsorption of these
                      mixtures also bind ssDNA although in this case the
                      adsorption is mediated by the opposite charges of the film
                      and the nucleic acid rather than specific base pairing. The
                      observed molecular recognition of nucleic acids by
                      dendrimers functionalized via non-covalent interactions with
                      nucleolipids is discussed in terms of biomedical
                      applications such as gene vectors and biosensors.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)MARIA-20140101 / EXP:(DE-MLZ)N-REX-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000350679300013},
      pubmed       = {pmid:25626114},
      doi          = {10.1039/C4SM02712D},
      url          = {https://juser.fz-juelich.de/record/188389},
}