robot tagged posts

Scorpion-inspired pressure sensors let robots feel their surroundings

Scorpion-inspired pressure sensors let robots feel their surroundings
Near-body flow field perception for intelligent robots. (A) The scorpion-inspired hexapod walking platform equipped with four BPPSs. Credit: Science Advances (2025). DOI: 10.1126/sciadv.ady5008

Nature, the master engineer, is coming to our rescue again. Inspired by scorpions, scientists have created new pressure sensors that are both highly sensitive and able to work across a wide variety of pressures.

Pressure sensors are key components in an array of applications, from medical devices and industrial control systems to robotics and human-machine interfaces. Silicon-based piezoresistive sensors are among the most common types used today, but they have a significant limitation. They can’t be super sensitive to changes and work well across a range of pressures at the same time...

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Autonomous gallbladder removal: Robot performs first realistic surgery without human help

Robot performs 1st realistic surgery without human help
The robot used with the Surgical Robot Transformer-Hierarchy to perform gallbladder surgery. Credit: XinHao Chen/Johns Hopkins University

A robot trained on videos of surgeries performed a lengthy phase of a gallbladder removal without human help. The robot operated for the first time on a lifelike patient, and during the operation, responded to and learned from voice commands from the team—like a novice surgeon working with a mentor.

The robot performed unflappably across trials and with the expertise of a skilled human surgeon, even during unexpected scenarios typical in real-life medical emergencies.

The work, led by Johns Hopkins University researchers, is a transformative advancement in surgical robotics, where robots can perform with both mechanical precision and human-li...

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Next-Generation Robotic Cockroach can explore Under water environments

The next generation of Harvard's Ambulatory Microrobot (HAMR) can walk on land, swim on the surface of water, and walk underwater, opening up new environments for this little bot to explore. Credit: Yufeng Chen, Neel Doshi, and Benjamin Goldberg/Harvard University

The next generation of Harvard’s Ambulatory Microrobot (HAMR) can walk on land, swim on the surface of water, and walk underwater, opening up new environments for this little bot to explore. Credit: Yufeng Chen, Neel Doshi, and Benjamin Goldberg/Harvard University

‘HAMR’ can walk on land, swim, and walk under water. In nature, cockroaches can survive underwater for up to 30 minutes. Now, a robotic cockroach can do even better. Harvard’s Ambulatory Microrobot, known as HAMR, can walk on land, swim on the surface of water, and walk underwater for as long as necessary, opening up new environments for this little bot to explore.

This next generation HAMR uses multifunctional foot pads that rely on surface tension and surface tension induced buoyancy when HAMR needs to swim but can also apply a...

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