Human Exhalation CO₂ Sensor Based on the PEI-PEG/ZnO/NUNCD/Si Heterojunction Electrode.

ABSTRACT: Gas sensors based on semiconductors have outstanding sensitivity compared with the oxide-based devices; however, the high operation temperature greatly hinders its development in practical applications. Chronic obstructive pulmonary disease (COPD) is one of the leading causes of death worldwide, and the patients with severe COPD with or without exacerbation tend to have airflow obstruction, which results in an increase of CO₂ concentration and subsequent hypercapnic respiratory failure. At present, COPD detection relies on professional operation; however, the patients suffer great discomfort during the arterial blood sampling. All these facts reduce patient's willingness to test their physical health. Thus, noninvasive monitoring of CO₂ levels is crucial for the early

SUBMITTER: Chang C 

PROVIDER: S-EPMC9097207 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature