Accurate diagnosis of Helicobacter pylori (H. pylori) infection is a crucial part in the effective
management of many gastroduodenal diseases. Several invasive and non-invasive …

Investigating the use of exhaled breath analysis to diagnose and monitor different diseases
has attracted much interest in recent years. This review introduces conventionally used …

Current field and medical applications demand better quantification of CO 2 isotopic ratios
with high sensitivity, fast time-response, portable instrument size, and low power …

In recent times, the need for high-sensitive detection has grown drastically as more and
more applications of molecular sensing are being explored. Cavity ring-down spectroscopy …

Volatolomics allows us to elucidate cell metabolic processes in real time. In particular, a
volatile organic compound (VOC) excreted from our bodies may be specific for a certain …

BACKGROUND Helicobacter pylori (H. pylori) infection has been well-established as a
significant risk factor for several gastrointestinal disorders. The urea breath test (UBT) has …

Much effort continues to be devoted to the development of devices to analyse breath
ammonia with the anticipation that breath ammonia analyses will be useful in clinical …

Cavity-enhanced absorption spectroscopies (CEAS) have gained importance in a wide
range of applications in molecular spectroscopy. The development of optical sensors based …

Nitric oxide (NO) plays a key role in the development of peptic ulcer disease (PUD).
Conversely, the gastric pathogen Helicobacter pylori colonizes the human stomach and …

The gastric pathogen Helicobacter pylori utilize glucose during metabolism, but the
underlying mechanisms linking to oxygen-18 (18O) and carbon-13 (13C)-isotopic …