Harvard John A. Paulson School of Engineering and Applied Sciences

Damaged Material, Heal Thyself: Self-Healing Material Advance

Creating a new vision for multifunctional materials

Dive of the RoboBee

Super-slick material makes steel better, stronger, cleaner

Home Battery: Green storage for green energy grows cleaner

Perfect colors, captured with one ultra-thin lens

Boston’s natural gas infrastructure releases high levels of heat-trapping methane

Hands on: Crafting ultrathin atoms-thick color coatings on paper

Airway muscle-on-a-chip mimics asthma

For electronics beyond silicon, a new contender emerges

A self-organizing thousand-robot swarm

The team used high-resolution x-ray imaging and microscopy techniques to assess the formation of reparative (tertiary) dentin 12 weeks after the low-power laser treatment. In the microscopy images shown here, the yellow hashtags (#) sit atop the newly-formed tertiary dentin; there is more tertiary dentin in the laser-treated teeth than in the control. (Credit: Harvard's Wyss Institute and SEAS)

Researchers use light to coax stem cells to repair teeth

Encapsulated nanoparticles can create bright colors by amplifying particular wavelengths of light. These microcapsules could offer a new, non-toxic and long-lasting source of color for paints and electronic displays. (Composite image courtesy of Jin-Gyu Park.)

Brighter inks, without pigment and they never fade

"We’re talking about the use of physics at the nanoscale for a completely new application," says Federico Capasso. (Image courtesy of Steven J. Byrnes.)

Infrared: A new renewable energy source?

The heart circulates blood as if it were wringing a towel. The bottom twists in a counterclockwise direction while the top twists clockwise. On the right is the team's model of the heart, showing tube-like pneumatic artificial muscles (PAMs) that mimic the heart's striated muscle fibers. Credit: Harvard's Wyss Institute and SEAS.

Another Soft Robotics Breakthrough: Artificial muscles that do the twist