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Stick-to-itiveness: Pitt engineers show self-organization of sticky micron-to-mesoscale 3D structures in confined fluids

Researchers at the University of Pittsburgh have developed a system that uses fluid mechanics and chemo-mechanical processes to autonomously assemble hierarchical 3D structures. The system utilizes sticky bonds to drive self-organization, allowing for the construction of complex devices with minimal external intervention.

SourceUniversity of Pittsburgh·JournalPNAS Nexus·TypeComputational simulation/modeling·DateJul 31, 2023

Rice U.’s Kaiyu Hang wins NSF CAREER Award

Hang aims to develop general-purpose robots that can handle complex physical interactions without requiring perfect input from sensors or extensive instructions. His project seeks to improve robotic manipulation tasks by reducing assumptions about how the robot acts in real-world conditions.

Robotic glove that ‘feels’ lends a ‘hand’ to relearn playing piano after a stroke

Researchers developed a soft robotic exoskeleton glove using AI to improve hand dexterity and classify song variations. The device provides real-time feedback and adjustments, making it easier for users to grasp correct movement techniques, with an accuracy of 97.13% in classifying correct and incorrect song versions.

SourceFlorida Atlantic University·JournalFrontiers in Robotics and AI·TypeCase study·DateJun 30, 2023

Displays controlled by flexible fins and liquid droplets more versatile, efficient than LED screens

Researchers at the University of Illinois have developed a new type of flexible display that uses capillary-controlled robotic flapping fins and liquid droplets to create switchable optical and infrared light multipixel displays. The displays are 1,000 times more energy efficient than traditional LED screens.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalScience Advances·TypeExperimental study·DateJun 30, 2023

Liquid metal sticks to surfaces without a binding agent

Scientists have developed a technique for applying liquid metal to surfaces that don't easily bond with it, using force-responsive adhesion. The method allows for the creation of electronic 'smart devices' from everyday materials like paper and plastic.

SourceCell Press·JournalCell Reports Physical Science·TypeExperimental study·DateJun 9, 2023

Ankle exosuit for community walking aims to give post-stroke wearers more independence

A new ankle exosuit designed for community use could help stroke survivors improve their walking propulsion, boost confidence, and ability, according to a proof-of-concept study. The device simplifies mechanical components and allows wearers to control it easily, with sensors tracking progress over time.

SourceHarvard John A. Paulson School of Engineering and Applied Sciences·JournalAnnals of the New York Academy of Sciences·DateMay 30, 2023

Versatile, high-speed, and efficient crystal actuation with photothermally resonated natural vibrations

A team of scientists from Waseda University and Tokyo Institute of Technology have successfully demonstrated large-angle photothermally resonated high-speed bending induced by pulsed UV irradiation. They used 2,4-dinitroanisole β-phase crystals to achieve a fast natural vibration at 390 Hz with a large photothermal bending angle.

SourceWaseda University·JournalNature Communications·TypeExperimental study·DateApr 20, 2023

Built to bounce back

Researchers at Arizona State University have designed a drone with an inflatable frame that can absorb impact forces and provide collision resilience. The drone's stiffness is tunable, allowing it to physically interact with its surroundings and accomplish tasks like perching, which involves controlled collisions.

SourceArizona State University·JournalSoft Robotics·TypeExperimental study·DateApr 20, 2023

A rechargeable battery made from food

A team of researchers at Istituto Italiano di Tecnologia has developed a totally edible and rechargeable battery cell, utilizing riboflavin and quercetin as anode and cathode. The battery can provide current for small electronic devices and may have applications in health diagnostics, food quality monitoring, and edible soft robotics.

SourceIstituto Italiano di Tecnologia - IIT·JournalAdvanced Materials·TypeExperimental study·DateApr 13, 2023

Carnegie Mellon University researchers develop soft robot that shifts from land to sea with ease

Researchers at Carnegie Mellon University have created soft robots that can transition from walking to swimming, crawling to rolling, or jumping. The robots use highly dynamic bistable soft actuators made of shape-memory alloy springs that react to electrical currents, allowing for varied locomotion and adaptability.

SourceCarnegie Mellon University·JournalAdvanced Materials Technologies·DateMar 14, 2023

Shape memory for nano-sized objects

Researchers at ETH Zurich have successfully applied the shape-memory effect to nano-sized objects, overcomes the limitation of objects needing to be larger than 50 nanometers. The material ferroic oxides showed a free-standing nanoscale structure made of ferroic oxides that are highly elastic and resilient.

SourceETH Zurich·JournalNature Communications·DateMar 9, 2023

A new bioinspired earthworm robot for future underground explorations

Researchers at Istituto Italiano di Tecnologia have created a soft robot inspired by earthworms, able to crawl using soft actuators that elongate or squeeze. The prototype demonstrates improved locomotion with a speed of 1.35mm/s and has potential applications in underground exploration, excavation, search and rescue operations.

SourceIstituto Italiano di Tecnologia - IIT·JournalScientific Reports·TypeExperimental study·DateMar 1, 2023

Reaching like an octopus: A biology-inspired model opens the door to soft robot control

A multidisciplinary team developed a physiologically accurate model of octopus arm muscles, providing insight into biological and design challenges. The model enables energy-shaping control, simplifying arm control design and enabling life-like motion in soft robots.

SourceUniversity of Illinois Grainger College of Engineering·JournalProceedings of the Royal Society A Mathematical Physical and Engineering Sciences·DateFeb 24, 2023

Researchers develop elastic material that is impervious to gases and liquids

Researchers developed an elastic material using liquid metal that resists both gases and liquids, offering a trade-off between elasticity and gas resistance. The material, created with gallium-indium alloy, has been tested to prevent the escape of oxygen and liquids, showing promising potential for use in high-value tech packaging

SourceNorth Carolina State University·JournalScience·TypeExperimental study·DateFeb 2, 2023

New soft robots poised to be more agile, controlled

Researchers at Cornell University have developed a new system of fluid-driven actuators that enable soft robots to achieve more complex motions. The team's design allows for antagonistic motions and predicts the actuator's possible motions with a single fluid input, resulting in an actuator that can achieve far more complex movements.

SourceCornell University·JournalAdvanced Intelligent Systems·DateJan 23, 2023

Soft robot detects damage, heals itself

Researchers create a soft robot that can detect damage and heal itself using stretchable fiber-optic sensors and polyurethane urea elastomer. The SHeaLDS technology provides a damage-resistant robot that can self-heal from cuts, and the researchers plan to integrate it with machine learning algorithms for more tasks.

SourceCornell University·JournalScience Advances·DateDec 7, 2022

Soft robots make virtual reality gloves feel more real

Researchers at University of Pennsylvania School of Engineering and Applied Science developed a new electrostatically controlled clutch that enables soft robotic hands to hold 4 pounds, 40 times more than before. The clutch uses a fracture-mechanics-based model to achieve this feat while requiring only 125 volts of electricity.

Microrobot assembly line

A team of researchers developed a new method for 3D-printing microrobots with multiple component modules inside the same microfluidic chip. The 'assembly line' approach allowed for the combination of various modules, such as joints and grippers, into a single device. This innovation may help realize the vision of microsurgery performed...

SourceOsaka University·JournalScience Robotics·TypeExperimental study·DateNov 16, 2022

Autonomous crawling soft ‘ringbots’ can navigate narrow gaps

Researchers at NC State University have developed a ring-shaped soft robot capable of crawling across surfaces when exposed to elevated temperatures or infrared light. The 'ringbots' are made of liquid crystal elastomers in the shape of looped ribbon, resembling a bracelet, and can pull a small payload across various environments.

SourceNorth Carolina State University·JournalAdvanced Materials·TypeExperimental study·DateNov 15, 2022

The "cellular" network

Scientists at the University of Pittsburgh create microcapsules that exhibit life-like autonomy through self-generated motion and chemical signals. The system mimics protocell behavior, showcasing the potential for simple mechanisms to produce complex biological functions.

SourceUniversity of Pittsburgh·JournalMatter·TypeComputational simulation/modeling·DateOct 5, 2022

Engineers discover new process for synthetic material growth, enabling soft robots that grow like plants

Researchers developed a plant-inspired extrusion process for synthetic material growth, enabling soft robots to create new material and navigate obstacles. This technology has applications in remote areas and biomedical fields, potentially reducing the need for expensive machinery.

SourceUniversity of Minnesota·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateSep 28, 2022