Articles tagged with "artificial-muscles"
AI-powered muscles made from lifelike materials perform safe actions
Researchers at the Georgia Institute of Technology have developed AI-powered artificial muscles made from lifelike, hierarchically structured flexible fibers that mimic human muscle and tendon. These soft, responsive muscles are paired with intelligent control systems that enable them to sense, adapt, and "remember" previous movements, allowing for real-time adjustment of force and flexibility. Unlike traditional rigid robots, these artificial muscles aim to produce natural, smooth, and safe motions, making them particularly suitable for applications such as stroke recovery or prosthetics, where rebuilding strength and confidence is crucial. The research, published in Materials Horizon, highlights advancements in functional materials, structural design, and manufacturing techniques that enable these muscles to execute pre-programmed movements and respond dynamically to environmental changes through sensory feedback. The team emphasizes the importance of adaptability and biocompatibility, ensuring the materials can integrate safely with the human body without triggering immune responses. Challenges remain in scalability and dynamic reprogramming, but the work represents a significant step toward prosthetics and assistive devices
robotartificial-musclesflexible-materialsAI-powered-roboticssmart-materialsadaptive-roboticsbiomedical-engineeringA flexible lens controlled by light-activated artificial muscles promises to let soft machines see - Robohub
Researchers at Georgia Institute of Technology have developed a flexible, adaptive lens inspired by the human eye, designed to provide vision capabilities for soft robots and biomedical devices. This photo-responsive hydrogel soft lens (PHySL) uses light-activated, water-based polymer “muscles” to change its shape and focal length without mechanical parts or electronics. Unlike traditional camera lenses that rely on bulky, rigid components, the PHySL mimics the eye’s ciliary muscles by contracting in response to light, enabling precise, contactless control of focus and intensity. Its soft, compliant structure enhances durability and safety, particularly for applications involving close contact with the human body. This innovation addresses challenges in soft robotics and biomedical tools, where flexible, low-power, and autonomous systems are crucial. Soft robots, made from compliant materials, benefit from adaptable vision systems that can withstand deformation and operate without complex electronics. The PHySL’s electronics-free design contrasts with existing soft lens technologies that often require liquid-filled actuators or electronic
robotsoft-roboticsartificial-muscleshydrogel-materialsadaptive-lensbiomedical-engineeringsoft-materialsLiquid crystal elastomers give soft robotics 2,000x lifting power
Researchers at the University of Waterloo have developed a new type of artificial muscle for soft robotics by integrating liquid crystals (LCs) into liquid crystal elastomers (LCEs), a rubber-like material that changes shape with heat. This innovation results in soft robotic muscles that are nine times stronger and more flexible than previous versions, capable of lifting loads up to 2,000 times their own weight and delivering work output nearly three times that of average mammalian muscle. The enhanced strength and stiffness arise from microscopic LC pockets dispersed within the elastomer, which provide solid-like resistance to stretching while maintaining overall flexibility. This breakthrough addresses a key limitation in soft robotics, where traditional materials often lack the strength and durability needed for powerful, precise movements. The new LCE-based muscles enable robots to move more naturally and safely, expanding potential applications in minimally invasive surgery, drug delivery, delicate electronics assembly, and human-assistive manufacturing. The research team plans to advance this technology by developing 3D-printable inks from
soft-roboticsliquid-crystal-elastomersartificial-musclessmart-materialsflexible-roboticsrobotic-actuatorsadvanced-materialsTiny robot muscle lifts 4,000 times its weight in lab breakthrough
Researchers at the Ulsan National Institute of Science and Technology (UNIST) in South Korea have developed a novel artificial muscle that can transition between soft and flexible to rigid and strong states, overcoming a major limitation in soft robotics. This tiny muscle, weighing just 1.25 grams, can stiffen under heavy loads to provide structural support and then soften to allow contraction and flexibility. Its core innovation lies in a dual cross-linked polymer network combining covalent bonds for strength and thermally responsive physical interactions for flexibility, along with embedded surface-treated magnetic microparticles that enable precise control via external magnetic fields. The artificial muscle can lift up to 5 kilograms—about 4,000 times its own weight—and stretch up to 12 times its original length when softened. It achieves an exceptional strain of 86.4% during contraction, more than double that of human muscles, and a work density of 1,150 kJ/m³, which is 30 times higher than human tissue. This
roboticsartificial-musclessoft-roboticsmaterials-sciencepolymer-networksmagnetic-actuationwearable-devicesTechnology behind ghostly water-powered humanoid robot revealed
Clone Robotics, a Polish startup founded in 2021, is pioneering lifelike humanoid robots powered by innovative synthetic muscle technology. Unlike traditional rigid, motor-driven robots, Clone’s androids use water-powered fluidic muscles based on the McKibben design—pressurized tubes that contract like human muscles when filled with fluid. This hydraulic system, driven by a compact pump dubbed the “hydraulic heart,” enables natural, versatile movements by mimicking human musculoskeletal structures such as tendons and ligaments. The company began by developing a robotic hand with high degrees of freedom, then expanded to a full-body prototype within a year, leveraging anatomical layouts to simplify design. In February 2025, Clone Robotics unveiled Protoclone V1, a synthetic human prototype featuring over 200 degrees of freedom, 1,000 artificial muscle fibers (Myofibers), and 500 sensors, closely replicating human anatomy. Later that year, they launched their first full-scale humanoid robot and are
roboticshumanoid-robotartificial-musclesfluidic-musclessoft-roboticshydraulic-systemandroid-technologyOctopus-Inspired artificial muscles boost underwater drones efficiency
Researchers at the University of Iowa have developed a novel approach to enhance the efficiency and maneuverability of underwater vehicles by mimicking the octopus's unique muscle structures. Their innovation involves integrating twisted spiral artificial muscles—synthetic coils inspired by octopus papillae muscles—into the wings of a small underwater hydrofoil. These coils, powered by small electric actuators, unspool in flowing water to reduce drag and increase lift, enabling the craft to move more smoothly and with up to 30% more lift and 10% less drag. This bioinspired design allows the vehicle to maintain stability and control even when sharply tilted against currents, addressing common challenges such as high energy consumption and limited maneuverability in underwater robotics. This research, led by Associate Professor Caterina Lamuta and funded by the U.S. Office of Naval Research, represents the first demonstration of an underwater flow-control device driven by twisted artificial muscles. The technology holds promise for a range of applications, including offshore energy, ocean exploration
robotartificial-musclesunderwater-dronesbioinspired-roboticsenergy-efficiencyactuatorsunderwater-vehiclesLight-powered underwater robots achieve 2x mammalian muscle strength
robotsoft-roboticsartificial-musclesunderwater-roboticslight-responsive-materialsphotochemical-actuatorsazobenzene