Harvard scientists turn knitting into shape-shifting smart fabric

Harvard researchers have transformed ordinary knitting into a platform for creating fabrics that can snap between different shapes and perform useful functions. Using elastic yarns and industrial knitting techniques, the team engineered thick textiles that naturally curve and lock into multiple stable configurations, much like a light switch flipping between on and off. By adding conductive yarn, they turned these shape-shifting fabrics into soft electronic switches capable of controlling lights, counting steps, and responding to movement.

Harvard scientists turn knitting into shape-shifting smart fabric. Harvard scientists turn knitting into shape-shifting smart fabric Science News from research organizations Harvard scientists turn knitting into shape-shifting smart fabric Scientists have turned ordinary knitting into shape-shifting smart fabric that can snap, sense movement, and control electronics. Paulson School of Engineering and Applied Sciences (SEAS) have shown that conventional knitting techniques can be used to create functional fabrics capable of changing shape, sensing movement, and operating as switches.

The approach could help advance a new generation of programmable textiles. The team developed specialized, machine-knitted fabrics that can "snap" from one stable shape to another. Physicists describe this ability to maintain multiple stable configurations as multistability.