Point-of-Care Analysis of Blood Ammonia with a Gas-Phase Sensor

ACS Sensors ◽  
2020 ◽  
Vol 5 (8) ◽  
pp. 2415-2421
Author(s):  
Thomas R. Veltman ◽  
Chun J. Tsai ◽  
Natalia Gomez-Ospina ◽  
Matthew W. Kanan ◽  
Gilbert Chu
Keyword(s):  
Gas Phase ◽  
Point Of Care ◽  
Blood Ammonia ◽  
Phase Sensor

Gas sniffer (YSZ-based electrochemical gas phase sensor) toward acetone detection

2019 ◽  
Vol 278 ◽  
pp. 1-7 ◽  
Author(s):  
Xidong Hao ◽  
Danjing Wu ◽  
Yipei Wang ◽  
Jinhua Ouyang ◽  
Jing Wang ◽  
...  
Keyword(s):  
Gas Phase ◽  
Acetone Detection ◽  
Phase Sensor

scholarly journals Performance of Amperometric Platinized-Nafion Based Gas Phase Sensor for Determining Nitric Oxide (NO) Levels in Exhaled Human Nasal Breath

2018 ◽  
Vol 30 (8) ◽  
pp. 1610-1615 ◽  
Author(s):  
Joanna Zajda ◽  
Nicholas J. Schmidt ◽  
Zheng Zheng ◽  
Xuewei Wang ◽  
Mark E. Meyerhoff
Keyword(s):  
Nitric Oxide ◽  
Gas Phase ◽  
Phase Sensor

Mixed potential gas phase sensor using YSZ solid electrolyte and spinel-type oxides AMn2O4(A = Co, Zn and Cd) sensing electrodes

2020 ◽  
Vol 302 ◽  
pp. 127206 ◽  
Author(s):  
Xidong Hao ◽  
Tong Liu ◽  
Weijia Li ◽  
Yuxi Zhang ◽  
Jinhua Ouyang ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Gas Phase ◽  
Mixed Potential ◽  
Spinel Type ◽  
Phase Sensor

Clinical investigation of a point-of-care blood ammonia analyzer

2008 ◽  
Vol 37 (2) ◽  
pp. 198-206 ◽  
Author(s):  
Robert Goggs ◽  
Sergio Serrano ◽  
Balazs Szladovits ◽  
Iain Keir ◽  
Ryan Ong ◽  
...  
Keyword(s):  
Clinical Investigation ◽  
Point Of Care ◽  
Blood Ammonia

Phase and Morphology in Mixed CuO-WO3 Films for Chemical Sensing

2002 ◽  
Vol 751 ◽  
Author(s):  
A. El Madi ◽  
B. Meulendyk ◽  
R. S. Pilling ◽  
G. Bernhardt ◽  
R. J. Lad ◽  
...  
Keyword(s):  
Gas Phase ◽  
Surface Segregation ◽  
Organophosphorus Compounds ◽  
Chemical Warfare Agents ◽  
Phase Changes ◽  
Highly Sensitive ◽  
Warfare Agents ◽  
Phase Sensor ◽  
Semiconducting Metal Oxide

ABSTRACTSemiconducting metal oxide (SMO) chemiresistive sensors are highly sensitive toward a broad range of hydrocarbons. To develop a gas phase sensor with selectivity toward organophosphorus compounds, such as chemical warfare agents and pesticides, we have developed dosimeters based upon a poisoning mechanism. Here, we report the growth and characterization of WO3 thin films, modified with Cu2O. XPS data show that exposure to phosphonate compounds leads to accumulation of phosphate on the surface, together with dramatic changes in the surface segregation of copper. We present XRD and XPS results to characterize the phase changes following growth, annealing, and exposure to phosphonate compounds. The correlation between sensor response and phosphorous accumulation shows that the highest activity occurs at intermediate coverages of Cu2O, in the15–25 Å range, on 500 Å WO3 films.

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