Microlattices

Microlattices are three-dimensional nanostructures with repeating patterns on a microscopic scale. They are typically fabricated using additive manufacturing techniques, such as two-photon polymerization or electron-beam lithography. The defining characteristic of a microlattice is its highly porous, interconnected structure, which allows for a high surface area to volume ratio. These structures can be designed with precise control over their geometry, pore size, and overall architecture.

The mechanical properties of microlattices are often remarkable, exhibiting exceptional strength-to-weight ratios and high energy absorption capabilities. This is due to their ability to distribute stress efficiently throughout the lattice structure. Depending on the material and design, microlattices can be engineered to be flexible, stiff, or even exhibit auxetic behavior, meaning they become fatter when stretched.

Applications for microlattices are diverse and span across various fields. In aerospace and automotive industries, their lightweight yet strong nature makes them ideal for structural components and impact absorption. In biomedical engineering, they can serve as scaffolds for tissue engineering, promoting cell growth and integration due to their porous design. Furthermore, their high surface area makes them promising for catalysis, filtration, and energy storage devices. Ongoing research continues to explore novel fabrication methods and expand the range of materials that can be used to create these advanced structures.