biomedical equipment;
chemical variables measurement;
chemiluminescence;
diseases;
gas sensors;
microsensors;
nanotechnology;
nitrogen compounds;
patient monitoring;
pneumodynamics;
rhenium compounds;
D O I:
10.1063/1.3050524
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Measurement of NO gas in exhaled human breath may be used to monitor oxidative stress and pulmonary diseases. Until now, only bulk, expensive, chemiluminescence-based NO monitors have been available to medicine. A nanosensing probe based on WO(3) selectively detecting minute nitric oxide gas concentrations in the presence of interfering volatile compounds is presented. This is possible due to the chemical affinity of rhenium trioxide based phases to oxidizing gases. The NO nanoprobe is expected to lead to portable and affordable, noninvasive, single breath sampling, NO diagnostics.