Results 11 to 20 of about 84,883 (260)

Recent Progress on Flexible Room-Temperature Gas Sensors Based on Metal Oxide Semiconductor

Nano-Micro Letters, 2022
With the rapid development of the Internet of Things, there is a great demand for portable gas sensors. Metal oxide semiconductors (MOS) are one of the most traditional and well-studied gas sensing materials and have been widely used to prepare various ...
Lang-Xi Ou, Meng-Yang Liu, Li-Yuan Zhu, David Wei Zhang, Hong-Liang Lu   +4 more
doaj   +2 more sources

Microfabricated Formaldehyde Gas Sensors [PDF]

Sensors, 2009
Formaldehyde is a volatile organic compound that is widely used in textiles, paper, wood composites, and household materials. Formaldehyde will continuously outgas from manufactured wood products such as furniture, with adverse health effects resulting ...
Karen C. Cheung, Frank K. Ko, Jonas Flueckiger   +2 more
doaj   +3 more sources

Printed gas sensors

Chemical Society Reviews, 2020
This review presents the recent development of printed gas sensors based on functional inks.
Dai, Jie, Ogbeide, Osarenkhoe, Macadam, Nasiruddin, Sun, Qian, Yu, Wenbei, Li, Yu, Su, Bao-Lian, Hasan, Tawfique, Huang, Xiao, Huang, Wei   +9 more
openaire   +3 more sources

Low-Power Odor-Sensing Network Based on Wake-Up Nodes

Proceedings, 2017
The localization of bad odors is a long standing issue with high relevance for affected people because of the health and safety implications. In order to enable the detection and localization of bad odors we propose a wireless, low-power consuming sensor
Alvaro Ortiz Perez, Benedikt Bierer, Cem Dinc, Jürgen Wöllenstein, Stefan Palzer   +4 more
doaj   +1 more source

A Review of Resistive Gas Sensors Based on Semiconducting Metal Oxides [PDF]

Journal of Advanced Materials in Engineering, 2022
Nowadays, the industrialization of societies and the improvement of the quality of life are associated with issues such as air pollution and environmental pollution.
A. Mirzaei, H. Shokrollahi
doaj   +1 more source

Layer by Layer Deposition of Colloidal SnO2 Nano Particles

Proceedings, 2017
The gas sensing properties of functional metal oxide layers depend on multitude parameters, including vacancy concentration, layer morphology and thickness, size and shape of the nano/microstructure, and porosity.
Haitao Gao, Xuemeng Lyu, Jürgen Wöllenstein, Stefan Palzer   +3 more
doaj   +1 more source

Selective Sensing of Gas Mixture via a Temperature Modulation Approach: New Strategy for Potentiometric Gas Sensor Obtaining Satisfactory Discriminating Features

Sensors, 2017
A new strategy to discriminate four types of hazardous gases is proposed in this research. Through modulating the operating temperature and the processing response signal with a pattern recognition algorithm, a gas sensor consisting of a single sensing ...
Fu-an Li, Han Jin, Jinxia Wang, Jie Zou, Jiawen Jian   +4 more
doaj   +1 more source

Selectivity in Chemiresistive Gas Sensors: Strategies and Challenges. [PDF]

Chem Rev
Bulemo PM, Kim DH, Shin H, Cho HJ, Koo WT, Choi SJ, Park C, Ahn J, Güntner AT, Penner RM, Kim ID.   +10 more
europepmc   +2 more sources

A Wireless Gas Sensor Network to Monitor Indoor Environmental Quality in Schools

Sensors, 2018
Schools are amongst the most densely occupied indoor areas and at the same time children and young adults are the most vulnerable group with respect to adverse health effects as a result of poor environmental conditions.
Alvaro Ortiz Perez, Benedikt Bierer, Louisa Scholz, Jürgen Wöllenstein, Stefan Palzer   +4 more
doaj   +1 more source

Rapid Quantitative Analysis of IR Absorption Spectra for Trace Gas Detection by Artificial Neural Networks Trained with Synthetic Data

Sensors, 2022
Infrared absorption spectroscopy is a widely used tool to quantify and monitor compositions of gases. The concentration information is often retrieved by fitting absorption profiles to the acquired spectra, utilizing spectroscopic databases.
Jens Goldschmidt, Leonard Nitzsche, Sebastian Wolf, Armin Lambrecht, Jürgen Wöllenstein   +4 more
doaj   +1 more source