![]() Using a low-voltage input into the materials, the team created a way for the soft material to decide how to react according to the output voltage signal from the reconfigured conductive polymer network. Mechanical force, applied to the materials, connects and reconnects the network. ![]() The new soft materials “think” using the reconfiguration of the conductive polymer networks. This approach uses binary inputs to process binary control outputs - using only “on” and “off” sequences to represent all thought and cognition. Human thought processes are based on logic that is similar to Boolean logic from mathematics. These include helping maintain sustainable and robust infrastructure, monitoring of airborne and waterborne contaminants and pathogens, and assisting with patient wound healing. The process creates decision-making functionality in engineered materials in a way that could support future soft, autonomous engineered systems that are invested with the basic elements of lifeforms yet are programmed to perform helpful services. The metamaterials feature flexible, conductive polymer networks that can compute all digital logic computations. ![]() Researchers produced a soft, mechanical metamaterial that can “think” about how forces are applied to it and respond via programmed reactions. (Image: Elizabeth Flores-Gomez Murray/Penn State) The Pennsylvania State University, University Park, PA New soft, mechanical metamaterials can “think” about how forces are applied to it and respond via preprogrammed reactions.
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