This is the first comprehensive review on methods and materials for use in optical sensing of
pH values and on applications of such sensors. The Review starts with an introduction that …

The direct exposure of volatile organic compounds (VOCs) is widely related to several
adverse health effects. Therefore, an accurate amount of its usage is necessary required …

In general, volatile organic compounds (VOCs) have a high vapor pressure at room
temperature (RT). It has been reported that all humans generate unique VOC profiles in their …

The current generation is witnessing a huge interest in optical waveguides due to their
salient features: they are of low cost, immune to electromagnetic interference, easy to …

Abstract pH has been considered one of the paramount factors in bodily functions because
most cellular tasks exclusively rely on precise pH values. In this context, the current …

Multi parameter measurement based on optical fiber sensor has been a research hotspot in
recent years. In this work, four kinds of optical fiber sensors, LPFG, FBG, PMF and SMS are …

Hydrogel-integrated optical fiber sensors have garnered momentous interest due to their
optical properties, biocompatibility, and biodegradability. Integrating active materials with …

Optical sensing technologies for hydrogen monitoring are of increasing importance in
connection with the development and expanded use of hydrogen and for transition to the …

Over the past few decades, optical waveguides have been increasingly used in
wearable/implantable devices for on-body sensing. However, conventional optical …

This work demonstrated a ZnO-coated optical fiber sensor for the detection of a volatile
organic compound (VOC) biomarker for diabetes for detecting isopropanol (IPA) markers. A …