@article{WessigBudachThuenemann2015,
  author    = {Wessig, Pablo and Budach, Dennis B. and Th{\"u}nemann, Andreas F.},
  title     = {Dendrimers with Oligospiroketal (OSK) Building Blocks: Synthesis and Properties},
  series = {Chemistry - a European journal},
  volume    = {21},
  journal   = {Chemistry - a European journal},
  number    = {29},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0947-6539},
  doi       = {10.1002/chem.201501386},
  pages     = {10466 -- 10471},
  year      = {2015},
  abstract  = {The development of novel dendrimers containing oligospiroketal (OSK) rods as building blocks is described. The linkage between the core unit (CU), branching units (BU), and OSK rods relies on the CuAAC reaction between terminal alkynes and azides. Two different strategies of dendrimer synthesis were investigated and it was found that the convergent approach is clearly superior to the divergent one. SAXS measurements and MD simulations indicate that the obtained dendrimer features a globular structure with very low density. Obviously, the OSK rods stabilize a rather loose mass-fractal structure.},
  language  = {en}
}
@article{ThuenemannKubowiczPietsch2000,
  author    = {Th{\"u}nemann, Andreas F. and Kubowicz, Stephan and Pietsch, Ullrich},
  title     = {Ultra-thin solid polyelectrolyte-surfactant complex films : structure and wetting},
  year      = {2000},
  language  = {en}
}
@phdthesis{Thuenemann2000,
  author    = {Th{\"u}nemann, Andreas F.},
  title     = {Self-assembly, ordered nanostructures and functionality of polyelectrolyte-amphiphile complexes},
  pages     = {188 S.},
  year      = {2000},
  language  = {en}
}
@article{PietschKubowiczThuenemannetal.2003,
  author    = {Pietsch, Ullrich and Kubowicz, Stephan and Th{\"u}nemann, Andreas F. and Geue, Thomas and Watson, M. D. and Tchebotareva, N. and M{\"u}llen, K.},
  title     = {X-ray reflectivity study of an amphiphilic hex-peri-hexabenzocoronene at a structured silicon wafer surface},
  year      = {2003},
  language  = {en}
}
@article{NeffevonRuestenLangeBrauneetal.2014,
  author    = {Neffe, Axel T. and von R{\"u}sten-Lange, Maik and Braune, Steffen and L{\"u}tzow, Karola and Roch, Toralf and Richau, Klaus and Kr{\"u}ger, Anne and Becherer, Tobias and Th{\"u}nemann, Andreas F. and Jung, Friedrich and Haag, Rainer and Lendlein, Andreas},
  title     = {Multivalent grafting of hyperbranched oligo- and polyglycerols shielding rough membranes to mediate hemocompatibility},
  series = {Journal of materials chemistry : B, Materials for biology and medicine},
  volume    = {2},
  journal   = {Journal of materials chemistry : B, Materials for biology and medicine},
  number    = {23},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {2050-750X},
  doi       = {10.1039/c4tb00184b},
  pages     = {3626 -- 3635},
  year      = {2014},
  abstract  = {Hemocompatible materials are needed for internal and extracorporeal biomedical applications, which should be realizable by reducing protein and thrombocyte adhesion to such materials. Polyethers have been demonstrated to be highly efficient in this respect on smooth surfaces. Here, we investigate the grafting of oligo- and polyglycerols to rough poly(ether imide) membranes as a polymer relevant to biomedical applications and show the reduction of protein and thrombocyte adhesion as well as thrombocyte activation. It could be demonstrated that, by performing surface grafting with oligo-and polyglycerols of relatively high polydispersity (>1.5) and several reactive groups for surface anchoring, full surface shielding can be reached, which leads to reduced protein adsorption of albumin and fibrinogen. In addition, adherent thrombocytes were not activated. This could be clearly shown by immunostaining adherent proteins and analyzing the thrombocyte covered area. The presented work provides an important strategy for the development of application relevant hemocompatible 3D structured materials.},
  language  = {en}
}
@misc{NeffevonRuestenLangeBrauneetal.2014,
  author    = {Neffe, Axel T. and von R{\"u}sten-Lange, Maik and Braune, Steffen and L{\"u}tzow, Karola and Roch, Toralf and Richau, Klaus and Kr{\"u}ger, Anne and Becherer, Tobias and Th{\"u}nemann, Andreas F. and Jung, Friedrich and Haag, Rainer and Lendlein, Andreas},
  title     = {Multivalent grafting of hyperbranched oligo- and polyglycerols shielding rough membranes to mediate hemocompatibility},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-99444},
  year      = {2014},
  abstract  = {Hemocompatible materials are needed for internal and extracorporeal biomedical applications, which should be realizable by reducing protein and thrombocyte adhesion to such materials. Polyethers have been demonstrated to be highly efficient in this respect on smooth surfaces. Here, we investigate the grafting of oligo- and polyglycerols to rough poly(ether imide) membranes as a polymer relevant to biomedical applications and show the reduction of protein and thrombocyte adhesion as well as thrombocyte activation. It could be demonstrated that, by performing surface grafting with oligo- and polyglycerols of relatively high polydispersity (>1.5) and several reactive groups for surface anchoring, full surface shielding can be reached, which leads to reduced protein adsorption of albumin and fibrinogen. In addition, adherent thrombocytes were not activated. This could be clearly shown by immunostaining adherent proteins and analyzing the thrombocyte covered area. The presented work provides an important strategy for the development of application relevant hemocompatible 3D structured materials.},
  language  = {en}
}
@article{LiebigThuenemannKoetz2016,
  author    = {Liebig, Ferenc and Th{\"u}nemann, Andreas F. and Koetz, Joachim},
  title     = {Ostwald Ripening Growth Mechanism of Gold Nanotriangles in Vesicular Template Phases},
  series = {Langmuir},
  volume    = {32},
  journal   = {Langmuir},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {0743-7463},
  doi       = {10.1021/acs.langmuir.6b02662},
  pages     = {10928 -- 10935},
  year      = {2016},
  abstract  = {The mechanism of nanotriangle formation in multivesicular vesicles (MMV) is investigated by using time-dependent SAXS measurements in combination with UV-vis spectroscopy, light, and transmission electron microscopy. In the first time period 6.5 nm sized spherical gold nanoparticles are formed inside of the vesicles, which build up soft nanoparticle aggregates. a) In situ SAXS experiments show a linear increase of the volume and molar mass of nanotriangles in the second time period. The volume growth rate of the triangles is 16.1 nm(3)/min, and the growth rate in the vertical direction is only 0.02 nm/min. Therefore, flat nanotriangles with a thickness of 7 nm and a diameter of 23 nm are formed. This process can be described by a diffusion limited Ostwald ripening growth mechanism. TEM micrographs visualize soft coral-like structures with thin nanoplatelets at the periphery of the aggregates, which disaggregate in the third time period into nanotriangles and spherical particles. The 16 times faster growth of nanotriangles in the lateral than that in the vertical direction is related to the adsorption of symmetry breaking components, i.e., AOT and the polyampholyte PalPhBisCarb, on the {111} facets of the gold nanoplatelets in combination with confinement effects of the vesicular template phase.},
  language  = {en}
}
@article{LiebigSarhanSchmittetal.2020,
  author    = {Liebig, Ferenc and Sarhan, Radwan Mohamed and Schmitt, Clemens Nikolaus Zeno and Th{\"u}nemann, Andreas F. and Prietzel, Claudia Christina and Bargheer, Matias and Koetz, Joachim},
  title     = {Gold nanotriangles with crumble topping and their influence on catalysis and surface-enhanced raman spectroscopy},
  series = {ChemPlusChem},
  volume    = {85},
  journal   = {ChemPlusChem},
  number    = {3},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {2192-6506},
  doi       = {10.1002/cplu.201900745},
  pages     = {519 -- 526},
  year      = {2020},
  abstract  = {By adding hyaluronic acid (HA) to dioctyl sodium sulfosuccinate (AOT)-stabilized gold nanotriangles (AuNTs) with an average thickness of 7.5 +/- 1 nm and an edge length of about 175 +/- 17 nm, the AOT bilayer is replaced by a polymeric HA-layer leading to biocompatible nanoplatelets. The subsequent reduction process of tetrachloroauric acid in the HA-shell surrounding the AuNTs leads to the formation of spherical gold nanoparticles on the platelet surface. With increasing tetrachloroauric acid concentration, the decoration with gold nanoparticles can be tuned. SAXS measurements reveal an increase of the platelet thickness up to around 14.5 nm, twice the initial value of bare AuNTs. HRTEM micrographs show welding phenomena between densely packed particles on the platelet surface, leading to a crumble formation while preserving the original crystal structure. Crumbles crystallized on top of the platelets enhance the Raman signal by a factor of around 20, and intensify the plasmon-driven dimerization of 4-nitrothiophenol (4-NTP) to 4,4 '-dimercaptoazobenzene in a yield of up to 50 \%. The resulting crumbled nanotriangles, with a biopolymer shell and the absorption maximum in the second window for in vivo imaging, are promising candidates for biomedical sensing.},
  language  = {en}
}
@article{LiebigSarhanPrietzeletal.2018,
  author    = {Liebig, Ferenc and Sarhan, Radwan Mohamed and Prietzel, Claudia Christina and Th{\"u}nemann, Andreas F. and Bargheer, Matias and Koetz, Joachim},
  title     = {Undulated Gold Nanoplatelet Superstructures},
  series = {Langmuir},
  volume    = {34},
  journal   = {Langmuir},
  number    = {15},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {0743-7463},
  doi       = {10.1021/acs.langmuir.7b02898},
  pages     = {4584 -- 4594},
  year      = {2018},
  abstract  = {Negatively charged flat gold nanotriangles, formed in a vesicular template phase and separated by an AOT-micelle-based depletion flocculation, were reloaded by adding a cationic polyelectrolyte, that is, a hyperbranched polyethylenimine (PEI). Heating the system to 100 degrees C in the presence of a gold chloride solution, the reduction process leads to the formation of gold nanoparticles inside the polymer shell surrounding the nanoplatelets. The gold nanoparticle formation is investigated by UV-vis spectroscopy, small-angle X-ray scattering, and dynamic light scattering measurements in combination with transmission electron microscopy. Spontaneously formed gold clusters in the hyperbranched PEI shell with an absorption maximum at 350 nm grow on the surface of the nanotriangles as hemispherical particles with diameters of similar to 6 nm. High-resolution micrographs show that the hemispherical gold particles are crystallized onto the {111} facets on the bottom and top of the platelet as well as on the edges without a grain boundary. Undulated gold nanoplatelet superstructures with special properties become available, which show a significantly modified performance in SERS-detected photocatalysis regarding both reactivity and enhancement factor.},
  language  = {en}
}
@article{LeitererLeitenbergerEmmerlingetal.2006,
  author    = {Leiterer, York and Leitenberger, Wolfram and Emmerling, Franziska and Th{\"u}nemann, Andreas F. and Panne, Ulrich},
  title     = {The use of an acoustic levitator to follow crystallization in small droplets by energydispersive X-ray diffraction},
  issn      = {0021-8898},
  doi       = {10.1107/S0021889806024915},
  year      = {2006},
  language  = {en}
}