Print Email Facebook Twitter A nano-fibrous platform of copolymer patterned surfaces for controlled cell alignment Title A nano-fibrous platform of copolymer patterned surfaces for controlled cell alignment Author Zhang, K. (TU Delft ChemE/Advanced Soft Matter) Gil Arranja, A. (TU Delft RST/Applied Radiation & Isotopes; TU Delft ChemE/Advanced Soft Matter; University Medical Center Utrecht) Chen, Hongyu (Virginia Tech) Mytnyk, S. (TU Delft ChemE/Product and Process Engineering) Wang, Y. (TU Delft ChemE/Advanced Soft Matter) Oldenhof, S. (TU Delft ChemE/Advanced Soft Matter; Netherlands Forensic Institute - NFI) van Esch, J.H. (TU Delft ChemE/Advanced Soft Matter) Mendes, E. (TU Delft ChemE/Advanced Soft Matter) Date 2018-01-01 Abstract The last decade has witnessed great progress in understanding and manipulating self-assembly of block copolymers in solution. A wide variety of micellar structures can be created and many promising applications in bioscience have been reported. In particular, nano-fibrous micelles provide a great platform to mimic the filamentous structure of native extracellular matrix (ECM). However, the evaluation of this kind of filomicellar system with potential use in tissue engineering is virtually unexplored. The question behind it, such as if the block copolymer nano-fibrous micelles can regulate cellular response, has lingered for many years because of the difficulties in preparation and 3D manipulation of these tiny objects. Here, by using a combination approach of self-assembly of block copolymers and soft lithography, we establish a novel and unique nano-fibrous 2D platform of organized micelles and demonstrate that patterned micelles enable control over the cellular alignment behavior. The area density and orientation of fibrous micelles determine the alignment degree and directionality of cells, respectively. Furthermore, when cells were cultured on multi-directionally aligned micelles, a competitive response was observed. Due to the virtually infinite possibilities of functionalization of the micelle corona, our work opens a new route to further mimic the native fibrous networks with artificial micelles containing various functionalities. To reference this document use: http://resolver.tudelft.nl/uuid:1d57be72-71f7-47bd-959b-94c5085b69c8 DOI https://doi.org/10.1039/c8ra03527j ISSN 2046-2069 Source RSC Advances, 8 (39), 21777-21785 Part of collection Institutional Repository Document type journal article Rights © 2018 K. Zhang, A. Gil Arranja, Hongyu Chen, S. Mytnyk, Y. Wang, S. Oldenhof, J.H. van Esch, E. Mendes Files PDF c8ra03527j.pdf 2.22 MB Close viewer /islandora/object/uuid:1d57be72-71f7-47bd-959b-94c5085b69c8/datastream/OBJ/view