Real-time breath analysis for COPD risk assessment in smokers using a ZnO/SnO₂ heterojunction sensor integrated with support vector machine

Chronic Obstructive Pulmonary Disease (COPD) is a progressively debilitating and life-threatening respiratory condition that has long been attributed to exposure to airborne toxic substances like carbon monoxide (CO), a reliable biomarker of oxidative stress, especially in smoking individuals. To address the need for a real-time and non-invasive method that can detect this life-threatening condition, a wearable diagnostic device is developed in this work based on a Z/S heterostructure thin-film gas sensor that can detect exhaled CO at a temperature as low as 37 °C. This gas sensor was prepared using a hydrothermal synthesis route and characterized by various techniques like X-ray diffraction (XRD), Field…

• UO
  University of Connecticut