Screening Platform for Cell Contact Guidance Based on Inorganic Biomaterial Micro/nanotopographical GradientsZhou, Q., Castañeda Ocampo, O., Guimarães, C., Kuhn, P., van Kooten, T. & van Rijn, P. 20-Sep-2017 In : ACS Applied Materials & Interfaces. 9, 37, p. 31433-31445 13 p.
Research output: Scientific - peer-review › Article
High -throughput screening (HTS) methods based on topography gradients or arrays have been extensively used to investigate cell material interactions. However, it is a huge technological challenge to cost efficiently prepare topographical gradients of inorganic biomaterials due to their inherent material properties. Here, we developed a novel strategy translating PDMS-based wrinkled topography gradients with amplitudes from 49 to 2561 nm and wavelengths between 464 and 7121 nm to inorganic biomaterials (Sio(2), Ti/Tio(2), Cr/Cro(3), and AL(2)O(3)) which are frequently used clinical materials. Optimal substratum conditions promoted human bone-marrow derived mesenchymal stem cell alignment, elongation, cytoskeleton arrangement, filopodia development as well as cell adhesion in vitro, which depended both on topography and interface material. This study displays a positive correlation between cell alignment and the orientation of cytoskeleton, filopodia, and focal adhesions. This platform vastly minimizes the experimental efforts both for inorganic material interface engineering and cell biological assessments in a facile and effective approach. The practical application of the HTS technology is expected to aid in the acceleration of developments of inorganic clinical biomaterials.
|Number of pages||13|
|Journal||ACS Applied Materials & Interfaces|
|Early online date||21-Aug-2017|
|State||Published - 20-Sep-2017|
- high-throughput screening, topographical gradient, inorganic biomaterials, biomimetic surface, stem cell behavior, MESENCHYMAL STEM-CELLS, OSTEOGENIC DIFFERENTIATION, NANOPHASE CERAMICS, SURFACE-TOPOGRAPHY, OSTEOBLAST ADHESION, FOCAL ADHESIONS, BONE-MARROW, IN-VITRO, NANOTOPOGRAPHY, MATRIX