4D printing of personalized shape memory polymer vascular stents with negative Poisson’s ratio structure: A preliminary study
Science China Technological Sciences, ISSN: 1869-1900, Vol: 63, Issue: 4, Page: 578-588
2020
- 122Citations
- 128Captures
- 1Mentions
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Metrics Details
- Citations122
- Citation Indexes122
- 122
- CrossRef11
- Captures128
- Readers128
- 128
- Mentions1
- News Mentions1
- 1
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What Is 4D Printing?
4D printing is the process of creating 3D-printed objects that can transform over time based on specific stimuli, like exposure to air, water or heat.
Article Description
Four-dimensional (4D) printing, integrates transformation information into three-dimensional (3D)-printed structures, which means that 3D-printed structures are able to change their shapes, properties, or functionalities over time. Here, two types of shape memory personalized vascular stents with negative Poisson’s ratio structure are developed via 4D printing. The genetic algorithm is used to optimize the structure. Axial compression tests, radial compression tests and three-point bending tests are carried out to study the mechanical properties of the stents. In addition, fluid-structure interaction and stress distribution during the shape recovery process are investigated based on finite element method. The shape memory behaviors of the stents are excellent and in vitro feasibility tests demonstrate that the stents can expand the simulated narrow blood vessel rapidly. Therefore, 4D printed shape memory stents with negative Poisson’s ratio structure are highly promising for the treatment of vascular stenosis.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85081040354&origin=inward; http://dx.doi.org/10.1007/s11431-019-1468-2; http://link.springer.com/10.1007/s11431-019-1468-2; http://link.springer.com/content/pdf/10.1007/s11431-019-1468-2.pdf; http://link.springer.com/article/10.1007/s11431-019-1468-2/fulltext.html; http://sciencechina.cn/gw.jsp?action=cited_outline.jsp&type=1&id=6763188&internal_id=6763188&from=elsevier; https://dx.doi.org/10.1007/s11431-019-1468-2; https://link.springer.com/article/10.1007/s11431-019-1468-2
Springer Science and Business Media LLC
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