Vine-inspired robotic gripper gently lifts heavy and fragile objects
Peer-Reviewed Publication
Updates every hour. Last Updated: 12-Apr-2026 14:16 ET (12-Apr-2026 18:16 GMT/UTC)
Like a growing vine, a new robotic gripper can snake around and lift a variety of objects, including a glass vase and a watermelon, offering a gentler approach than conventional gripper designs. A larger version of the robo-tendrils can also safely lift a human out of bed.
Researchers at Brown University have developed a wearable sensor that uses polarized light to improve the accuracy of photoplethysmography (PPG) signals across different skin tones. Conventional pulse oximeters often underperform on darker skin due to light absorption and scattering by melanin. The new device combines two wavelengths with cross-polarized detection to reduce superficial scattering and enhance deeper vascular signals. In tests with volunteers of light, medium, and brown skin tones, cross-polarization significantly increased perfusion index—a measure of signal strength—compared to co-polarized detection. This approach could help make wearable health technologies more equitable and reliable.
A research paper by scientists at Shanghai Jiao Tong University presented a novel integrated piezoelectric module (IPEM) based on a piezoelectric ceramic element designed specifically for bio-membrane puncture and insertion applications.
The research paper, published on Oct. 21, 2025 in the journal Cyborg and Bionic Systems.