Ultrasound opens the brain’s barrier to Alzheimer’s drugs in tiny trials
About 260 people with Alzheimer’s have had the procedure across 27 studies, none of them randomized, and the most striking result so far comes…
Hawkmoths evolved ultrasound defences against bats several separate times
Male hawkmoths scrape specialized scales to answer a hunting bat with ultrasound, and a new family tree shows the trick arose at least four…
A Penn chip steers gigahertz sound around sharp corners without loss
Star-shaped holes in an aluminum nitride membrane trap sound waves near 1 GHz along one edge, an idea borrowed from quantum physics that could…
Noise changed how about 80% of tested animal species live
A Science meta-analysis pooled 214 experiments on 177 species across six continents and found human noise shifted behaviour, body or development in four of…
A US trial of a fully implanted cochlear implant passes six months
All 56 people in Envoy Medical’s pivotal Acclaim trial have reached six months, and the first 10 went from 15% to 53% word recognition,…
A bandage-sized ultrasound implant watches the injured spinal cord
Johns Hopkins engineers tested the device in pigs and human cadavers, and in healthy pigs its focused ultrasound changed how fast blood moved in…
Judges of classical singing reward vibrato and resonance, not volume
In a Keio University concert-hall test of 22 singers, top scores went with a strong 2–4 kHz band, and judges weighed vibrato differently for…
Bats in a crowd shift their sonar pitch to stay out of each other’s way
Eleven bent-winged bats wearing tiny microphones moved their calls away from playback noise, and a simple model showed how a whole flock could do…
Berlin’s Bode-Museum sets real instruments beside its sculptures of music
From November 24 to March 7, historical and modern instruments sit next to angel choirs, late antique textiles and Canova’s Dancer.
Pygmy blue whales sing more at night because they eat by day
Tags and underwater recorders off Western Australia show feeding crowds out daytime song, so the night-to-day ratio could map where the whales are eating.
Singapore clears histotripsy, the sound-wave tumor treatment, for liver use
It follows Taiwan in May and Europe in July, and a 553-patient review this spring found the treatment hit its target 94% of the…
An MIT implant uses ultrasound to push drugs farther through brain tissue
A cardstock-thin cannula lined with 24 tiny transducers spread a test substance farther in gel and in mice, aimed one day at glioblastoma’s return.
A Chinese pilot tracked symptoms for three months after cancer HIFU
In 54 people with mostly stage IV cancer, the worst symptoms bottomed out a month after one focused-ultrasound session, but the study had no…
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