Barbara Mazzolai pushes 'sustainability robotics' field

Mazzolai's path to this proposal runs through biology rather than engineering. She enrolled at the University of Pisa in 1987 to study biology, drawn to marine biology, and in 1995 joined the Italian National Research Council's Institute of Biophysics to study how heavy metals like mercury cycle through water, soil, vegetables, and humans. A university recruitment effort for biologists to design environmental monitoring devices pulled her into engineering in 1999, and she worked as a research assistant under bioroboticist Paolo Dario. That transition shaped her later view that bioinspired work requires "two separate brains" — one of a biologist, one of an engineer.

The robots she is known for came from applying biological principles rather than copying animals. After her first bioinspired project, a soft robot based on the octopus, she became interested in plants as models, particularly roots that reduce friction by growing only at a very fine tip while the thicker base stays static — far less energy than a drill that pushes the whole structure from above. Her team realized this with a miniaturized 3D printer at the robot's tip, feeding thermoplastic filament through a heated nozzle, with sensors to avoid obstacles and detect nutrients or water.

Her sustainability robotics proposal extends the same borrowing logic back to nature. It argues that robotics should not repeat the pattern she attributes to plastics and car batteries, which were developed with little thought about their end-of-life impact. Whether the field takes hold may depend on whether researchers and manufacturers treat reuse, recycling, and biodegradation as design constraints from the start, rather than cleanup problems afterward.