@misc{ErmeydanCabaneHassetal.2014,
  author    = {Ermeydan, Mahmut Ali and Cabane, Etienne and Hass, Philipp and Koetz, Joachim and Burgert, Ingo},
  title     = {Fully biodegradable modification of wood for improvement of dimensional stability and water absorption properties by poly(ε-caprolactone) grafting into the cell walls},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-97265},
  pages     = {3313 -- 3321},
  year      = {2014},
  abstract  = {Materials derived from renewable resources are highly desirable in view of more sustainable manufacturing. Among the available natural materials, wood is one of the key candidates, because of its excellent mechanical properties. However, wood and wood-based materials in engineering applications suffer from various restraints, such as dimensional instability upon humidity changes. Several wood modification treatments increase water repellence, but the insertion of hydrophobic polymers can result in a composite material which cannot be considered as renewable anymore. In this study, we report on the grafting of the fully biodegradable poly(ε-caprolactone) (PCL) inside the wood cell walls by Sn(Oct)2 catalysed ring-opening polymerization (ROP). The presence of polyester chains within the wood cell wall structure is monitored by confocal Raman imaging and spectroscopy as well as scanning electron microscopy. Physical tests reveal that the modified wood is more hydrophobic due to the bulking of the cell wall structure with the polyester chains, which results in a novel fully biodegradable wood material with improved dimensional stability.},
  language  = {en}
}
@article{SalamaNeumannGuenteretal.2014,
  author    = {Salama, Ahmed and Neumann, Mike and G{\"u}nter, Christina and Taubert, Andreas},
  title     = {Ionic liquid-assisted formation of cellulose/calcium phosphate hybrid materials},
  series = {Beilstein journal of nanotechnology},
  volume    = {5},
  journal   = {Beilstein journal of nanotechnology},
  publisher = {Beilstein-Institut zur F{\"o}rderung der Chemischen Wissenschaften},
  address   = {Frankfurt, Main},
  issn      = {2190-4286},
  doi       = {10.3762/bjnano.5.167},
  pages     = {1553 -- 1568},
  year      = {2014},
  abstract  = {Cellulose/calcium phosphate hybrid materials were synthesized via an ionic liquid-assisted route. Scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, infrared spectroscopy, and thermogravimetric analysis/differential thermal analysis show that, depending on the reaction conditions, cellulose/hydroxyapatite, cellulose/ chlorapatite, or cellulose/monetite composites form. Preliminary studies with MC3T3-E1 pre-osteoblasts show that the cells proliferate on the hybrid materials suggesting that the ionic liquid-based process yields materials that are potentially useful as scaffolds for regenerative therapies.},
  language  = {en}
}
@misc{TaubertBalischewskiHentrichetal.2017,
  author    = {Taubert, Andreas and Balischewski, Christian and Hentrich, Doreen and Elschner, Thomas and Eidner, Sascha and G{\"u}nter, Christina and Behrens, Karsten and Heinze, Thomas},
  title     = {Water-soluble cellulose derivatives are sustainable additives for biomimetic calcium phosphate mineralization},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-400453},
  pages     = {17},
  year      = {2017},
  abstract  = {The effect of cellulose-based polyelectrolytes on biomimetic calcium phosphate mineralization is described. Three cellulose derivatives, a polyanion, a polycation, and a polyzwitterion were used as additives. Scanning electron microscopy, X-ray diffraction, IR and Raman spectroscopy show that, depending on the composition of the starting solution, hydroxyapatite or brushite precipitates form. Infrared and Raman spectroscopy also show that significant amounts of nitrate ions are incorporated in the precipitates. Energy dispersive X-ray spectroscopy shows that the Ca/P ratio varies throughout the samples and resembles that of other bioinspired calcium phosphate hybrid materials. Elemental analysis shows that the carbon (i.e., polymer) contents reach 10\% in some samples, clearly illustrating the formation of a true hybrid material. Overall, the data indicate that a higher polymer concentration in the reaction mixture favors the formation of polymer-enriched materials, while lower polymer concentrations or high precursor concentrations favor the formation of products that are closely related to the control samples precipitated in the absence of polymer. The results thus highlight the potential of (water-soluble) cellulose derivatives for the synthesis and design of bioinspired and bio-based hybrid materials.},
  language  = {en}
}