@article{SauterKratzLendlein2013,
  author    = {Sauter, Tilman and Kratz, Karl and Lendlein, Andreas},
  title     = {Pore-size distribution controls shape-memory properties on the macro- and microscale of polymeric foams},
  series = {Macromolecular chemistry and physics},
  volume    = {214},
  journal   = {Macromolecular chemistry and physics},
  number    = {11},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1022-1352},
  doi       = {10.1002/macp.201300062},
  pages     = {1184 -- 1188},
  year      = {2013},
  abstract  = {Open porous foams with identical foam density but different pore-size distributions (bimodal or monomodal) are prepared from a shape-memory polyetherurethane (PEU) by thermally induced phase separation. The shape-memory effect of the two PEU foams is explored by cyclic thermomechanical compression tests and microstructural analysis. The obtained results reveal that the PEU foam with a bimodal pore-size distribution exhibits an increased shape-recovery under stress-free conditions, both on the macro- (foam level) as well as the microscale (pore level). While bimodal pore-size distributions induce microscale bending during compression, buckling occurs in foams with monomodal pore-size distributions, leading to both a reduced and delayed shape recovery.},
  language  = {en}
}
@article{LiXuWangetal.2017,
  author    = {Li, Zhengdong and Xu, Xun and Wang, Weiwei and Kratz, Karl and Sun, Xianlei and Zou, Jie and Deng, Zijun and Jung, Friedrich Wilhelm and Gossen, Manfred and Ma, Nan and Lendlein, Andreas},
  title     = {Modulation of the mesenchymal stem cell migration capacity via preconditioning with topographic microstructure},
  series = {Clinical hemorheology and microcirculation : blood flow and vessels},
  volume    = {67},
  journal   = {Clinical hemorheology and microcirculation : blood flow and vessels},
  publisher = {IOS Press},
  address   = {Amsterdam},
  issn      = {1386-0291},
  doi       = {10.3233/CH-179208},
  pages     = {267 -- 278},
  year      = {2017},
  abstract  = {Controlling mesenchymal stem cells (MSCs) behavior is necessary to fully exploit their therapeutic potential. Various approaches are employed to effectively influence the migration capacity of MSCs. Here, topographic microstructures with different microscale roughness were created on polystyrene (PS) culture vessel surfaces as a feasible physical preconditioning strategy to modulate MSC migration. By analyzing trajectories of cells migrating after reseeding, we demonstrated that the mobilization velocity of human adipose derived mesenchymal stem cells (hADSCs) could be promoted by and persisted after brief preconditioning with the appropriate microtopography. Moreover, the elevated activation levels of focal adhesion kinase (FAK) and mitogen-activated protein kinase (MAPK) in hADSCs were also observed during and after the preconditioning process. These findings underline the potential enhancement of in vivo therapeutic efficacy in regenerative medicine via transplantation of topographic microstructure preconditioned stem cells.},
  language  = {en}
}