University of Washington engineers have turned tissue paper - similar to toilet tissue - into a new kind of wearable sensor that can detect a pulse, a blink of an eye and other human movement. The ...

Testing wastewater samples is one of the primary methods for assessing infectious disease prevalence in populations. By collecting and testing samples from various water treatment plants, scientists ...

This approach eliminates costly metals, toxic chemicals and specialised fabrication infrastructure — opening the door to ...

Researchers at the University of São Paulo (USP) in Brazil have developed a kraft paper-based electrochemical sensor that can detect traces of pesticides in fruit and vegetables in real time when ...

An inexpensive paper sensor along with a smartphone-based reader can rapidly provide information on a person's personal smoke exposure during wildfire season. (Nanowerk News) An inexpensive paper ...

Scientists have invented a paper-like, battery-free, AI-enabled sensor patch -- PETAL -- for convenient and effective monitoring of wound recovery. This novel technology provides early warning of ...

The COVID-19 pandemic introduced everyone to the world of PCR tests and lateral flow tests but since then, a different type of testing has quietly been gaining momentum. Wastewater testing is a ...

A carbon dioxide sensor developed by physicists at the University of Alberta can be manufactured on a mere piece of paper. The simplicity of this environmental innovation has myriad potential uses - ...

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 and ...