A new gas sensor using ruthenium dioxide nanosheets achieves ultra-sensitive ethanol detection down to 5 ppb, enabling real-time breath alcohol monitoring at under 30 milliwatts. (Nanowerk News) ...

Israeli scientists have developed a gas sensor that can distinguish “mirror image” molecules in the air, a breakthrough with the potential to revolutionize medical diagnostics, food and beverage ...

The repeated use of tear gas by federal immigration officers in Chicago has renewed a debate about how chemical irritants should be used by law enforcement personnel. By Mitch Smith Federal agents ...

Abstract: This project focuses on the development of a gas classification system using a gas sensor array integrated with an Arduino Mega 8260. The sensor array consists of various gas sensors, ...

National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai 200240, China Department of Micro/Nano Electronics, School of Electronic Information ...

Resistive type gas sensors based on wide-bandgap semiconductor oxides are remaining one of the principal players in environmental air monitoring. The rapid development of technology and the desire to ...

Abstract: Today, gas leakage has become a common problem in both industrial and household sectors as it can cause explosions, fires, and toxic exposures. The real time gas alert system ensures that ...

A new laser-based device can scan almost any sample of gas and detect its molecular ingredients down to concentrations in the parts per trillion. Expert sommeliers can take a whiff of a glass of wine ...

Scientists use devices known as frequency comb lasers to search for methane in the air above oil and gas operations and to screen for signs of infection in human breath. A new study could help make ...