Nelson Sepúlveda was sitting in the stands at Spartan Stadium, watching his hometown Michigan State players bash heads with their cross-state football rivals from the University of Michigan, when he had a scientific epiphany. Perhaps the nanotechnologies he had been working on for years—paper-thin devices known as ferroelectret nanogenerators that convert mechanical energy into electrical […]
This week, startup Metalenz announced that it has created a silicon chip that, paired with an image sensor, can distinguish objects by the way they polarize light. The company says its “PolarEyes” will be able to make facial authentication less vulnerable to spoofing, improve 3D imaging for augmented and virtual reality, aid in telehealth by […]
While growing up in Germany, Heike Riel helped her father design and build furniture in the family workshop. She says the experience taught her that “precision and creativity are necessary to build something excellent.” “Working as a furniture maker was actually a very nice experience because you built something that is high quality and lasts,” […]
IBM has become the first in the world to introduce a 2-nanometer (nm) node chip. IBM claims this new chip will improve performance by 45 percent using the same amount of power, or use 75 percent less energy while maintaining the same performance level, as today’s 7 nm-based chips. To give some sense of scale, with 2-nm […]
With a cocktail of carbon-based inks, engineers have made the first fully printable and recyclable electronic circuits on paper. The sturdy, high-performance devices last for months, and can be decomposed at the end to recover the carbon materials so they can be reused for printing. The recyclable carbon electronics are not meant to supplant silicon, […]
Artificial muscles, once a tangle of elaborate servomotors, and hydraulic and pneumatic actuators, is now a thing of shape-memory alloys and hair-thin carbon nanotube (CNT) fibers. Bionics are, in brief, getting smaller—though perhaps not simpler. Electrochemical CNT muscles are also energy efficient, and they provide larger muscle strokes as well. Recently, a group of researchers […]
Additive manufacturing of nanoscale structures has been made possible with a so-called ‘tractor beam’ that manipulates and fabricates different materials. Focused laser light generates an optical ‘tractor beam,’ which can manipulate and orient semiconductor nanorods (red) with metal tips (blue) in an organic solvent solution. The energy from the laser superheats the metallic tip of […]
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Materials Science, Technology and Engineering: Durable-Sustainable Development, Materials and Environment: Physical – Chemical, Processing, Melting, Remelting, Applications, R & D to Market, Steels, Special Alloys, Superalloys, Smart Materials, Coatings, Micro-Nanoscale Science and Technology
Bacteria-Killing Viruses Wield an Iron Spike Forget needles in haystacks. Try finding the tip of a needle in a virus. Scientists have long known that a group of viruses called bacteriophages have a knack for infiltrating bacteria and that some begin their attack with a protein spike. But the tip of this spike is so […]