Month: May 2025

The ZEUS laser facility at the University of Michigan has officially entered the record books, firing its first-ever 2-petawatt pulse—making it the most powerful laser in the United States. This staggering burst of energy, equal to twice the peak power of any other laser in the country, lasts a fleeting 25 quintillionths of a second (25 femtoseconds), but its implications could be long-lasting and transformative across numerous scientific fields.

“This milestone marks the dawn of a new era for American high-field science,” said Karl Krushelnick, director of the Gérard Mourou Center for Ultrafast Optical Science, which houses ZEUS. Designed to probe the most extreme conditions in nature, the laser is poised to fuel breakthroughs in astrophysics, quantum physics, national defense, and medical technologies.

In a groundbreaking achievement, Korean researchers have successfully produced eco-friendly solar hydrogen using an ultrasmall quantum semiconductor nanocluster—marking the first time in history this has been accomplished. This novel material, comprised of just 26 atoms, is now considered the smallest inorganic semiconductor ever used as a photocatalyst.

The research was conducted through a collaboration between Daegu Gyeongbuk Institute of Science and Technology (DGIST), Hanyang University, and Korea University. The team utilized a cadmium selenide ((CdSe)₁₃) nanocluster, measuring less than one nanometer, to drive hydrogen production from water under sunlight. As part of the II-VI group semiconductors, cadmium selenide is known for its high reactivity but has long faced challenges due to its instability and poor conductivity—issues that this team has now addressed.

Sound isn’t just for music or communication — it’s becoming a tool for precision manipulation in underwater environments. Researchers have developed a novel metamaterial that allows objects to be moved, rotated, and positioned underwater without any physical contact, using only carefully controlled sound waves.

This breakthrough comes from Dajun Zhang, a doctoral student at the University of Wisconsin-Madison. He presented his findings on May 20 at the 188th Meeting of the Acoustical Society of America and the 25th International Congress on Acoustics.

Wearable technology is undergoing a transformation — and this time, it’s not driven by electronics. Researchers at ETH Zurich have developed a new class of smart textiles that rely on sound waves rather than wires and sensors to monitor motion, touch, and even breathing. Their groundbreaking innovation, called SonoTextiles, turns everyday fabrics into responsive, data-collecting tools through the use of acoustic waves transmitted via glass fibers.

The research team, led by Professor Daniel Ahmed, has successfully integrated glass microfibers into fabric to create garments capable of sensing movement and pressure. Each glass fiber acts as a sensor: a tiny transmitter sends ultrasonic sound waves (around 100 kHz) down the fiber, while a receiver on the opposite end measures any changes in those waves.

A new recycling technique developed at the University of Leicester uses sound waves to efficiently separate materials in fuel cells, offering a cleaner and faster method to recover valuable components and prevent environmental contamination.

The method specifically targets catalyst-coated membranes (CCMs), which are used in hydrogen-powered technologies like fuel cells and water electrolyzers. These membranes typically combine precious platinum group metals with fluorinated polymer membranes, known as PFAS — substances that pose serious environmental and health risks due to their persistence in ecosystems.

In a groundbreaking advancement that merges robotics, materials science, and origami, engineers at Princeton University have developed a shape-shifting material capable of moving, expanding, and responding to electromagnetic commands — all without motors or internal gears. This new class of metamaterial can be remotely controlled, functioning almost like a robot, yet is constructed entirely from passive components.

The research, published in Nature, introduces a metamaterial dubbed the “metabot,” which derives its unique capabilities from its structure rather than its chemical composition. Drawing inspiration from the traditional art of origami, the team designed the metabot to change shape and behavior in response to external magnetic fields.

The record-setting Prowess drone showcases a number of custom-engineered features, including high-speed 3D-printed propellers designed by its creator, Xu. According to Guinness World Records, the 247-gram microdrone utilizes a lightweight carbon fiber frame and a remarkably thin 3D-printed outer shell just 0.4mm thick. Xu developed his own propellers after determining that no commercial models could meet the performance demands of his high-speed application.

Swiss engineer Samuele Gobbi, the Guinness World Record holder for the fastest remote-controlled quadcopter in a heavier weight class, applauded Xu’s accomplishment. “Building a high-speed quadcopter is already very complex, and he has added a weight limit of less than 250 grams to it, which makes me admire his achievement,” Gobbi remarked.

Collagen, one of the most abundant proteins in the human body, plays a critical role in providing structure, stability, and mechanical strength to tissues. Yet, despite its prevalence, some aspects of collagen’s behavior—particularly its orientation within tissues—remain shrouded in mystery. A new study from researchers at Yokohama National University sheds light on this complex topic and introduces a promising new method for fabricating collagen-based tissues with unprecedented precision.

Understanding the orientation of collagen fibers is vital, as it influences cell behavior and tissue function. Existing methods for modeling collagen structures—such as magnetic alignment and electrospinning—have notable drawbacks. Magnetic beads can remain embedded in the final structure, while volatile organic solvents pose safety and environmental concerns. Additionally, these techniques often fall short when it comes to accurately replicating the complex, multi-directional orientations found in natural tissues like the dermis or skull.