Move over, colonoscopies — researchers report in ACS Sensors that they’ve developed a sensor made of tiny microspheres packed with blood-sensing bacteria that detect markers of gastrointestinal disease. Taken orally, the miniature “pills” also contain magnetic particles that make them easy to collect from stool. Once excreted from mouse models with colitis, the bacterial sensor detected gastrointestinal bleeding within minutes. The researchers say the bacteria in the sensor could be adapted to detect other gut diseases.

Electronics traditionally rely on harnessing the electron’s charge, but researchers are now exploring the possibility of harnessing its other intrinsic properties. In a recent study, scientists from Japan demonstrated that sound waves in certain solids can generate orbital currents—flow of electron orbital angular momentum. Their findings establish a foundation realizing next-generation ‘orbitronic’ devices using existing acoustic technology.

Researchers discovered that the magnetic component of light plays a direct role in the Faraday Effect, overturning a 180-year-old assumption that only its electric field mattered. Their findings show that light can magnetically influence matter, not just illuminate it. The discovery opens new possibilities in optics, spintronics, and quantum technologies.

Researchers from the SNI network have discovered a novel way to fuse lipid vesicles at neutral pH. By harnessing a fragment of the diphtheria toxin, the team achieved vesicle membrane fusion without the need for pre-treatment or harsh conditions. Their work, recently published in Communications Chemistry, opens the door to new applications in lab-on-a-chip technologies, biosensors, and artificial cell prototypes.