By tracking the DNA “barcodes” of sea creatures, researchers have found species previously unknown to science.

Virginia Tech scientists have discovered that common ants could help detect spotted lanternflies — invasive insects that have ...

Researchers reporting in ACS Sensors have created a temporary tattoo sticker that has a hidden, but possibly lifesaving, ...

In an important, comprehensive, and timely review, an expert team from the University of California Berkeley details the methodologies used in nucleic acid-based tests for detecting the presence ...

Researchers have developed a rapid, ultrasensitive test using a paper-based electrochemical sensor that can detect the presence of the virus in less than five minutes. It uses a graphene biosensor ...

Special agents alongside local law enforcement spent their rainy Wednesday going to businesses all over South Florida, ...

mmWave Offers Presence Detection, Not Just Motion Detection This is the biggest reason to go for mmWave sensors over PIR sensors. PIR sensors are designed to detect motion, but mmWave sensors are ...

For the presence detection sensors, [Chris] chose to go with 24 GHz mmwave radar modules that, unlike infrared sensors, can detect if a human is in an area even if they are incredibly still.

The detection is done through EDNA detection in water samples. Two liters of seawater, or about half a gallon. That is all that is needed to detect the presence of sharks in the ocean.

For the presence detection sensors, [Chris] chose to go with 24 GHz mmwave radar modules that, unlike infrared sensors, can detect if a human is in an area even if they are incredibly still.