Biomechanical metamaterials fabricated through multiphoton lithography by tailoring 3D buckling

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationLaser-Based Micro- and Nanoprocessing XIV
EditorsUdo Klotzbach, Akira Watanabe, Rainer Kling
PublisherSPIE
ISBN (Electronic)9781510632998
DOIs
StatePublished - Jan 1 2020
EventLaser-Based Micro- and Nanoprocessing XIV 2020 - San Francisco, United States
Duration: Feb 3 2020Feb 6 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11268
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceLaser-Based Micro- and Nanoprocessing XIV 2020
CountryUnited States
CitySan Francisco
Period2/3/202/6/20

Keywords

  • 3D laser processing
  • Biomedical engineering
  • Metamaterial structures
  • Multiphoton lithography
  • Tailored buckling behavior

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Vangelatos, Z., Grigoropoulos, C. P., Farsari, M., Gu, G., Ma, Z., & Komvopoulos, K. (2020). Biomechanical metamaterials fabricated through multiphoton lithography by tailoring 3D buckling. In U. Klotzbach, A. Watanabe, & R. Kling (Eds.), Laser-Based Micro- and Nanoprocessing XIV [1126812] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11268). SPIE. https://doi.org/10.1117/12.2543811