| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging
|
| Presentation Title |
In-situ Imaging of Architected Materials Made from Nanoclusters and DNA |
| Author(s) |
Wendy Gu, John Kulikowski, David Doan, Qi Li, Yonggang Ke, Shuang Wang |
| On-Site Speaker (Planned) |
Wendy Gu |
| Abstract Scope |
Nanoscale architected materials can have enhanced mechanical properties due to the combination of material size effects and a complex 3D lattice structure. The use of in-situ scanning electron microscope (SEM) mechanical testing is critical to understanding the parameters that govern deformation in these intricate, small-scale materials. First, I will describe photoresists based on metallic nanoclusters that enable two-photon lithography of nanocomposite lattices with high mechanical absorption and recoverability (Li et al., Science (2022)). The effect of composition, relative density and 3D architecture is evaluated to understand photochemical, material and structural interactions. Then, I will present our work on DNA-silica lattices with octahedral architectures. The lattice struts are made of DNA origami bundles coated with silica. The silica thickness is down to ~1.5 nm, which leads to mechanical size effects and enhanced strength, such that the properties of the DNA-silica lattices rival that of glassy carbon nano-lattices. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Nanotechnology, Additive Manufacturing |