Researchers have developed a new optical sensor that provides a simple way to achieve real-time detection of extremely low levels of arsenic in water. Researchers have developed a new optical sensor ...

A new easy-to-use optical fiber sensor achieves sensitive and real-time detection of extremely low levels of arsenic in water. WASHINGTON — Researchers have developed a new optical sensor that ...

There’s something freeing about controlling objects with your voice. When you say, “Open can,” simplehuman’s Sensor Can with voice and motion control opens, then slowly closes a few seconds later.

Ever wanted an indoor environment sensor that’s dead simple yet a complete package? That’s the anotter-sensor-hub project from [Jana Marie], designed for the Sensirion SEN05x series sensors, with a ...

This design based on an SR latch and two RC networks is, unlike many alternative solutions, neither complex nor expensive. Single and differential capacitance sensors are widely used to measure linear ...

Sensors that detect and track small metallic objects are handy gadgets, whether used to route workpieces on an assembly line or comb a beach for “treasures” lost in the sand. A typical sensor design ...

New type of biological and chemical sensor based on hydrogel works by determining pH. The microscopic images at bottom show how the hydrogel stripes expand with decreasing acidity. (Photo courtesy of ...

Scientists have created a cheap, paper-based sensor that changes colour to detect deadly gases within minutes, even in high humidity. It could provide a fast, portable tool for environmental ...

Imagine being able to swab the inside of your mouth, place it in a device and quickly know whether you’re infected with COVID-19. Johns Hopkins University researchers say they have developed a simple ...

Luminescent paper discs under UV lamp: (1) without enzyme; (2), (3) and (4) with β-glucuronidase enzyme. In the presence of the enzyme, the discs show strong green luminescence. Researchers at the ...