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Proceedings Paper

Biomechanical metamaterials fabricated through multiphoton lithography by tailoring 3D buckling
Author(s): Zacharias Vangelatos; Costas P. Grigoropoulos; Maria Farsari; Grace Gu; Zhen Ma; Kyriakos Komvopoulos
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Paper Abstract

The advances in laser fabrication technologies have provided the means to create complex structural features in micro- and nanoscale. Hierarchical features, imitating natural materials, can be architected, providing remarkable mechanical performance. In addition, metamaterial structures, ranging from mechanical to bioengineering, with unprecedented properties, can be utilized for engineering applications. In this paper, we summarize conducted work on the laser-aided fabrication of architected structural and biological materials. To effectively design “meta-implants”, the design and structural principles encompassing these architected materials must be comprehended and substantiated. To this end, we fabricated by multiphoton lithography 3D mechanical metamaterial structures having as the principal objective to control failure and increase the strain energy capacity of the structure. New design concepts for 3D mechanical metamaterials were also introduced, exhibiting tailored buckling for enhanced strain hardening, high energy absorption and resilience to large deformations. Furthermore, we developed the processes required to create large scale bioscaffolds, that can be utilized in biological science and biomedical engineering for in vitro models.

Paper Details

Date Published: 2 March 2020
PDF: 14 pages
Proc. SPIE 11268, Laser-based Micro- and Nanoprocessing XIV, 1126812 (2 March 2020); doi: 10.1117/12.2543811
Show Author Affiliations
Zacharias Vangelatos, Univ. of California, Berkeley (United States)
Costas P. Grigoropoulos, Univ. of California, Berkeley (United States)
Maria Farsari, Foundation for Research and Technology-Hellas (Greece)
Grace Gu, Univ. of California, Berkeley (United States)
Zhen Ma, Syracuse Univ. (United States)
Kyriakos Komvopoulos, Univ. of California, Berkeley (United States)

Published in SPIE Proceedings Vol. 11268:
Laser-based Micro- and Nanoprocessing XIV
Udo Klotzbach; Akira Watanabe; Rainer Kling, Editor(s)

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