@article{TallianHerreroRollettStadleretal.,
  author    = {Tallian, Claudia and Herrero-Rollett, Alexandra and Stadler, Karina and Vielnascher, Robert and Wieland, Karin and Weihs, Anna and Pellis, Alessandro and Teuschl, Andreas and Lendl, Bernhard and Amenitsch, Heinz and Guebitz, Georg M.},
  title     = {Structural insights into pH-responsive drug release of self-assembling human serum albumin-silk fibroin nanocapsules.},
  series = {European Journal of Pharmaceutics and Biopharmaceutics},
  journal   = {European Journal of Pharmaceutics and Biopharmaceutics},
  abstract  = {Inflammation processes are associated with significant decreases in tissue or lysosomal pH from 7.4 to 4, a fact that argues for the application of pH-responsive drug delivery systems. However, for their design and optimization a full understanding of the release mechanism is crucial. In this study we investigated the pH-depending drug release mechanism and the influence of silk fibroin (SF) concentration and SF degradation degree of human serum albumin (HSA)-SF nanocapsules. Sonochemically produced nanocapsules were investigated regarding particle size, colloidal stability, protein encapsulation, thermal stability and drug loading properties. Particles of the monodisperse phase showed average hydrodynamic radii between 438 and 888 nm as measured by DLS and AFM and a zeta potential of -11.12 ± 3.27 mV. Together with DSC results this indicated the successful production of stable nanocapsules. ATR-FTIR analysis demonstrated that SF had a positive effect on particle formation and stability due to induced beta-sheet formation and enhanced crosslinking. The pH-responsive release was found to depend on the SF concentration. In in-vitro release studies, HSA-SF nanocapsules composed of 50\% SF showed an increased pH-responsive release for all tested model substances (Rhodamine B, Crystal Violet and Evans Blue) and methotrexate at the lowered pH of 4.5 to pH 5.4, while HSA capsules without SF did not show any pH-responsive drug release. Mechanistic studies using confocal laser scanning microscopy (CLSM) and small angle X-ray scattering (SAXS) analyses showed that increases in particle porosity and decreases in particle densities are directly linked to pH-responsive release properties. Therefore, the pH-responsive release mechanism was identified as diffusion controlled in a novel and unique approach by linking scattering results with in vitro studies. Finally, cytotoxicity studies using the human monocytic THP-1 cell line indicated non-toxic behavior of the drug loaded nanocapsules when applied in a concentration of 62.5 µg mL-1.},
  subject      = {Biomaterial},
  language  = {en}
}
@misc{TeuschlSchuhWeihsetal.,
  author    = {Teuschl, Andreas and Schuh, Christina and Weihs, Anna and Guillaume, Olivier and Monforte Vila, Xavier and Redl, Heinz and Kaplan, David and R{\"u}nzler, Dominik},
  title     = {Tailoring bioactivity of silk-based biomaterials via delivering and functionalization strategies with fibrinogen/thrombin, plant lectins or laminin},
  subject      = {Biomaterials},
  language  = {en}
}
@misc{SalzerRiederMonforteVilaetal.,
  author    = {Salzer, Elias and Rieder, Bernhard and Monforte Vila, Xavier and Weihs, Anna and R{\"u}nzler, Dominik and Teuschl, Andreas},
  title     = {Evaluation of a novel hydrostatic pressure bioreactor on bovine cartilage chips},
  subject      = {Bioreactor},
  language  = {en}
}
@misc{SlezakRoseHercheretal.,
  author    = {Slezak, Paul and Rose, Roland and Hercher, David and Weihs, Anna and Fuchs, Christiane and Redl, Heinz and Mittermayr, Rainer and Slezak, Cyrill},
  title     = {Tracking therapeutic shockwaves and their impact on regeneration},
  subject      = {Shockwave Therapy},
  language  = {en}
}
@misc{HromadaTomaschWeihsetal.,
  author    = {Hromada, Carina and Tomasch, Janine and Weihs, Anna and R{\"u}nzler, Dominik and Teuschl, Andreas},
  title     = {Engineering of 3D Tissue Constructs Using our Novel MagneTissue Bioreactor as Alternatives to Animal Models},
  subject      = {Bioreactor},
  language  = {en}
}
@article{RiederWeihsWeidingeretal.,
  author    = {Rieder, Bernhard and Weihs, Anna and Weidinger, Adelheid and Sczwarc, Dorota and N{\"u}rnberger, Sylvia and Redl, Heinz and R{\"u}nzler, Dominik and Huber-Gries, Carina and Teuschl, Andreas},
  title     = {Hydrostatic pressure-generated reactive oxygen species induce osteoarthritic conditions in cartilage pellet cultures},
  series = {Scientific Reports},
  journal   = {Scientific Reports},
  subject      = {Bioreactor},
  language  = {en}
}