Researchers at Kyoto University unveiled a new bioinspired method for creating complex 3D curved structures on July 6, 2026. This innovative approach uses programmed shrinkage to transform flat materials into various functional shapes, addressing limitations faced by traditional manufacturing techniques.
Understanding the Bioinspired Fabrication Method
The newly developed technique mimics the natural process of morphogenesis, where living organisms grow into specific shapes. According to Kentaro Morikawa, the first author of the research, "The starting point for our study was the idea that the 3D forms of living organisms might be explained by spatial patterns of growth-rate differences." This method combines computational modeling, 3D printing, and heat-shrinking materials to achieve desired curved forms.
Researchers calculate the shrinkage needed for each region of a flat sheet to produce the target curvature. Non-shrinking elements are then 3D printed onto a heat-shrinking film. When heated, the film shrinks unevenly, resulting in the desired shape without the need for molds.
Applications of Curved Structures in Various Fields
The artificial morphogenesis method can create several practical items, including:
- Cup-like objects
- Ergonomic chair-like designs
- Car body-like surfaces
- Fishing lure-like objects
These structures not only resemble natural forms but also enhance functionality by improving strength and efficiency. For example, the team successfully crafted shapes reminiscent of a hemisphere, flower, flatworm, and shrimp.
Future Directions and Research Opportunities
Looking ahead, the researchers aim to refine their fabrication method for broader applications. Morikawa noted, "One direction for future research will be to make the method more scalable, for example, by developing ways to divide a large target surface into printable pieces and assemble them afterward." The potential for creating robust structures could lead to advancements in robotics, medical implants, and electronic systems.
After fabricating the curved shapes, the team coated them with a UV-curable resin, which significantly increased their mechanical strength by approximately 166 times. This approach not only enhances the durability of the structures but also aligns with biological processes where soft tissues are hardened post-formation.
🤖 This article was rewritten by Feed and Figures' editorial AI from a report originally published by Phys.org. Facts and quotes are preserved from the original; the rewrite focuses on clarity and structure. For the unedited original, see the source link below.
