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Belu A, Yilmaz M, Neumann E, Offenhäusser A, Demirel G, Mayer D. Asymmetric, nano-textured surfaces influence neuron viability and polarity. J Biomed Mater Res A 2018; 106:1634-1645. [PMID: 29427541 DOI: 10.1002/jbm.a.36363] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 01/09/2018] [Accepted: 02/01/2018] [Indexed: 02/06/2023]
Abstract
Three dimensional, nanostructured surfaces have attracted considerable attention in biomedical research since they have proven to represent a powerful platform to influence cell fate. In particular, nanorods and nanopillars possess great potential for the control of cell adhesion and differentiation, gene and biomolecule delivery, optical and electrical stimulation and recording, as well as cell patterning. Here, we investigate the influence of asymmetric poly(dichloro-p-xylene) (PPX) columnar films on the adhesion and maturation of cortical neurons. We show that nanostructured films with dense, inclined polymer columns can support viable primary neuronal culture. The cell-nanostructure interface is characterized showing a minimal cell penetration but strong adhesion on the surface. Moreover, we quantify the influence of the nano-textured surface on the neural development (soma size, neuritogenesis, and polarity) in comparison to a planar PPX sample. We demonstrate that the nanostructures facilitates an enhancement in neurite branching as well as elongation of axons and growth cones. Furthermore, we show for the first time that the asymmetric orientation of polymeric nanocolumns strongly influences the initiation direction of the axon formation. These results evidence that 3D nano-topographies can significantly change neural development and can be used to engineer axon elongation. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1634-1645, 2018.
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Affiliation(s)
- Andreea Belu
- Institute of Complex Systems, ICS-8, Forschungszentrum Jülich GmbH, Jülich, 52425, Germany.,JARA-SOFT, Jülich, 52425, Germany
| | - Mehmet Yilmaz
- Bio-inspired Materials Research Laboratory (BIMREL), Gazi University, Ankara, Turkey
| | - Elmar Neumann
- Institute of Complex Systems, ICS-8, Forschungszentrum Jülich GmbH, Jülich, 52425, Germany.,JARA-SOFT, Jülich, 52425, Germany
| | - Andreas Offenhäusser
- Institute of Complex Systems, ICS-8, Forschungszentrum Jülich GmbH, Jülich, 52425, Germany.,JARA-SOFT, Jülich, 52425, Germany
| | - Gokhan Demirel
- Bio-inspired Materials Research Laboratory (BIMREL), Gazi University, Ankara, Turkey
| | - Dirk Mayer
- Institute of Complex Systems, ICS-8, Forschungszentrum Jülich GmbH, Jülich, 52425, Germany.,JARA-SOFT, Jülich, 52425, Germany
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Tran AQ, Kaulen C, Simon U, Offenhäusser A, Mayer D. Surface coupling strength of gold nanoparticles affects cytotoxicity towards neurons. Biomater Sci 2017; 5:1051-1060. [DOI: 10.1039/c7bm00054e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Weakly bound gold nanoparticles reveal awful toxicity towards neurons.
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Affiliation(s)
- A. Q. Tran
- JARA-FIT
- Aachen
- Germany
- Peter Grünberg (PGI8)
- Forschungszentrum Jülich GmbH
| | - C. Kaulen
- JARA-FIT
- Aachen
- Germany
- Institute of Inorganic Chemistry
- RWTH Aachen University
| | - U. Simon
- JARA-FIT
- Aachen
- Germany
- Institute of Inorganic Chemistry
- RWTH Aachen University
| | - A. Offenhäusser
- JARA-FIT
- Aachen
- Germany
- Peter Grünberg (PGI8)
- Forschungszentrum Jülich GmbH
| | - D. Mayer
- JARA-FIT
- Aachen
- Germany
- Peter Grünberg (PGI8)
- Forschungszentrum Jülich GmbH
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