A Shapeshifting Molecule Leads to a Tiny Piezoresistor

Electronic sensors that use piezoresistance—that is, a change in the electric resistance of a material due to mechanical activity—are common in many devices, including cars, medical wearables, and smartphones. Now, researchers in Australia have developed a tiny version of a piezoresistor, as small as a single molecule, that could enable an entirely new host of applications.