期刊
NANOTECHNOLOGY
卷 28, 期 6, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aa536f
关键词
3D-printing; nanoimprint lithography; hybrid methods; 3D scaffold
资金
- Russian Science Foundation [15-12-00050]
- Russian Science Foundation [15-12-00050] Funding Source: Russian Science Foundation
It is a well-known fact that bone scaffold topography on micro-and nanometer scale influences the cellular behavior. Nano-scale surface modification of scaffolds allows the modulation of biological activity for enhanced cell differentiation. To date, there has been only a limited success in printing scaffolds with micro-and nano-scale features exposed on the surface. To improve on the currently available imperfect technologies, in our paper we introduce new hybrid technologies based on a combination of 2D (nano imprint) and 3D printing methods. The first method is based on using light projection 3D printing and simultaneous 2D nanostructuring of each of the layers during the formation of the 3D structure. The second method is based on the sequential integration of preliminarily created 2D nanostructured films into a 3D printed structure. The capabilities of the developed hybrid technologies are demonstrated with the example of forming 3D bone scaffolds. The proposed technologies can be used to fabricate complex 3D micro-and nanostructured products for various fields.
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