Semiconductor gas sensors using metal oxides, carbon nanotubes, graphene-based
materials, and metal chalcogenides have been reviewed from the viewpoint of the sensitive …

The analysis of exhaled breath is important for health vs. disease diagnostics. Diagnosis
and monitoring methods based on metal-oxide gas sensors are highly attractive, owing to …

Gas-sensing applications commonly use nanomaterials (NMs) because of their unique
physicochemical properties, including a high surface-to-volume ratio, enormous number of …

Detection of gas-phase chemicals finds a wide variety of applications, including food and
beverages, fragrances, environmental monitoring, chemical and biochemical processing …

Conspectus As a futuristic diagnosis platform, breath analysis is gaining much attention
because it is a noninvasive, simple, and low cost diagnostic method. Very promising clinical …

Breath analysis is an attractive strategy that holds tremendous potential to achieve non-
implantable physical health management enabled by flexible humidity sensors for breathing …

Exhaled breath test is a typical disease monitoring method for replacing blood and urine
samples that may create discomfort for patients. To monitor exhaled breath markers, gas …

Breath sensors can revolutionize medical diagnostics by on-demand detection and
monitoring of health parameters in a noninvasive and personalized fashion. Despite …

Diabetes mellitus (DM), an ailment caused by unregulated blood sugar levels, can lead to
the failure of more than one organ in patients. Currently, blood tests are being conducted in …

This paper presents an overview of semiconductor materials used in gas sensors, their
technology, design, and application. Semiconductor materials include metal oxides …