MIT Researchers Develop Neuron-Mimicking Polymer Devices for Energy-Efficient Edge Computing
Researchers at MIT have developed tiny mechanical devices using soft polymers that mimic the firing behavior of neurons in the brain. These devices leverage the unique mechanical response of polymers at the nanoscale to process and remember information. By sandwiching a thin film of polydimethylsiloxane (PDMS) between two metal electrodes, the researchers created a 'nano-spring' that balances adhesive forces, allowing for controlled and reversible nanoscale mechanical reconfiguration. When voltage is applied, the metal plates compress the PDMS, altering the electrical current. The viscoelastic nature of PDMS enables the devices to dynamically remember the history of applied forces and voltages, converting this history into an electrical response, similar to how neurons accumulate charge and fire. This innovation integrates computing and memory within a single nanoscale device, minimizing the need for external components and leading to high energy efficiency and a compact footprint.
