@article{SchulzePrietzelKoetz2016,
  author    = {Schulze, Nicole and Prietzel, Claudia Christina and Koetz, Joachim},
  title     = {Polyampholyte-mediated synthesis of anisotropic gold nanoplatelets},
  series = {Colloid and polymer science : official journal of the Kolloid-Gesellschaft},
  volume    = {294},
  journal   = {Colloid and polymer science : official journal of the Kolloid-Gesellschaft},
  publisher = {Springer},
  address   = {New York},
  issn      = {0303-402X},
  doi       = {10.1007/s00396-016-3890-y},
  pages     = {1297 -- 1304},
  year      = {2016},
  abstract  = {This paper focused on the synthesis of triangular nanoplatelets in the presence of a tubular network structure. The tubular network structure is formed by adding a strongly alternating polyampholyte, i.e., PalPhBisCarb, to a mixed vesicle system with a negatively charged bilayer containing phosphatidylcholin and AOT. Using the tubular network as a reducing agent in a one-step procedure, triangular and hexagonal nanoplatelets are formed. One can show that the nanoplatelet yield is enhanced by increasing the temperature and decreasing the reaction time. The platelet edge length can be decreased by heating the system up to 100 A degrees C. Due to specific interactions between PalPhBisCarb and the AOT/phospholipid bilayer, stacking and welding effects lead to the formation of ordered platelet structures. The reaction pathway to flat gold nanotriangles is discussed with regard to the twin plane growth model of gold nanoplates.},
  language  = {en}
}
@article{SchulzeTierschZenkeetal.2013,
  author    = {Schulze, Nicole and Tiersch, B. and Zenke, I. and Koetz, Joachim},
  title     = {Polyampholyte-tuned lyotrop lamellar liquid crystalline systems},
  series = {COLLOID AND POLYMER SCIENCE},
  volume    = {291},
  journal   = {COLLOID AND POLYMER SCIENCE},
  number    = {11},
  publisher = {SPRINGER},
  address   = {NEW YORK},
  issn      = {0303-402X},
  doi       = {10.1007/s00396-013-2999-5},
  pages     = {2551 -- 2559},
  year      = {2013},
  abstract  = {The influence of a polyampholyte, i.e., poly(N,N\’-diallyl-N,N\’-dimethyl-altmaleamic carboxylate) (PalH), on the lamellar liquid crystalline (LC) system sodium dodecyl sulfate (SDS)/decanol/water was investigated by means of microdifferential scanning calorimetry, small-angle X-ray diffraction (SAXS), and cryo-scanning electron microscopy. After incorporating PalH into the lamellar liquid crystalline system, SAXS measurements show that three different LC phases exist: i.e., a swelling, slightly swelling, and non-swelling one. At pH 4, the positively charged polymer with an extended conformation can directly adsorb at the anionic head groups of the surfactant and more compact vesicles are formed at room temperature. At pH 9, the electrostatic interactions between the polyampholyte (in a more coiled conformation) and the sulfate head groups of the SDS are leveled off and incompact vesicles are formed at room temperature. That means in presence of the polyampholyte the morphology of the LC phase, i.e., the supramolecular vesicle structure, can be tuned by varying the pH and/or the temperature.},
  language  = {en}
}
@misc{SchulzeKoetz2016,
  author    = {Schulze, Nicole and Koetz, Joachim},
  title     = {Kinetically Controlled Growth of Gold Nanotriangles in a Vesicular Template Phase by Adding a Strongly Alternating Polyampholyte},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-98380},
  pages     = {22},
  year      = {2016},
  abstract  = {This paper is focused on the temperature dependent synthesis of gold nanotriangles in a vesicular template phase, containing phosphatidylcholin and AOT, by adding the strongly alternating polyampholyte PalPhBisCarb. UV-vis absorption spectra in combination with TEM micrographs show that flat gold nanoplatelets are formed predominantly in presence of the polyampholyte at 45 °C. The formation of triangular and hexagonal nanoplatelets can be directly influenced by the kinetic approach, i.e., by varying the polyampholyte dosage rate at 45 °C. Corresponding zeta potential measurements indicate that a temperature dependent adsorption of the polyampholyte on the {111} faces will induce the symmetry breaking effect, which is responsible for the kinetically controlled hindered vertical and preferred lateral growth of the nanoplatelets.},
  language  = {en}
}