A new electronic lead sensor, potentially costing around $20, could keep an eye on home and city water quality, alerting residents and officials to the presence of lead within nine days.

The E-Tongue works by applying a voltage to a water sample, causing any lead ions present to stick to the sensor's gold electrode. Then, the voltage is reversed, causing the lead to come off the ...

According to Storhoff, Lu’s new sensor is remarkably selective for lead ions. Homeowners might use the alumina plates or paper strips and a solution of the nanoparticle-based sensors to test ...

Using in vitro selection, Lu and Li found several DNA sequences that were especially responsive to the presence of lead ions. To enhance the sensitivity of the sensor, the researchers attached a ...

Taiwanese scientists have invented a nanocomposite membrane-based sensor that can test for lead poisoning with a drop of blood in less than 10 minutes, achieving a major medical technology ...

The sensor demonstrated successful 1390 nm imaging results, offering an environmentally-friendly alternative to first-generation quantum dots that contain lead, which limited their widespread ...

SWIR sensor with lead-free quantum dot photodiodes Credit: imec The sensor successfully demonstrated 1390 nm imaging results, offering an environmentally friendly alternative to first-generation ...