Biomechanical metamaterials fabricated through multiphoton lithography by tailoring 3D buckling

Zacharias Vangelatos; Costas P. Grigoropoulos; Maria Farsari; Grace Gu; Zhen Ma; Kyriakos Komvopoulos

doi:10.1117/12.2543811

2 March 2020 Biomechanical metamaterials fabricated through multiphoton lithography by tailoring 3D buckling

Zacharias Vangelatos, Costas P. Grigoropoulos, Maria Farsari, Grace Gu, Zhen Ma, Kyriakos Komvopoulos

Proceedings Volume 11268, Laser-based Micro- and Nanoprocessing XIV; 1126812 (2020) https://doi.org/10.1117/12.2543811
Event: SPIE LASE, 2020, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Zacharias Vangelatos, Costas P. Grigoropoulos, Maria Farsari, Grace Gu, Zhen Ma, and Kyriakos Komvopoulos "Biomechanical metamaterials fabricated through multiphoton lithography by tailoring 3D buckling", Proc. SPIE 11268, Laser-based Micro- and Nanoprocessing XIV, 1126812 (2 March 2020); https://doi.org/10.1117/12.2543811

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