October 2015 and October 2019 and is written in continuation of previous reviews. 1, 2 In
exceptional cases, older references were cited. Data were electronically searched in …

High-quality optical fibers can be produced now at a low cost and large quantity, and this
has further promoted the development of fiber-optic (chemical) sensors. After over 30 years …

The importance of nanocomposite-based fiber optic sensors has immensely increased in the
fields of chemical, gas, bio-analytes, food processing, environmental indoor/outdoor air …

Protection is obligatory for the safety of people in certain occupations where they might be
exposed to hazardous chemicals. This review provides an overview of chemical protective …

Electrically conductive fibers or textiles are attractive for their potential applications in
wearable devices. The creation of continuously aligned assembly (ie, bundle or yarn) may …

Importance of ammonia sensors is increasing significantly worldwide in environmental
monitoring, control of chemical processes, agricultural, and medical applications …

The review article presents the advancements occurred in the area of fiber optic evanescent
wave (FOEW) sensors in the past decade (2007–2018). The fundamental working principle …

Optical approaches for NH 3 gas sensing are contemplated as a reliable alternative to the
conventional chemiresistive gas sensing techniques. Initially, we have briefly reviewed …

An intrinsic optical fiber pH sensor coated with polyaniline (PANI)-polyvinyl alcohol (PVA)
composite layer is developed and experimentally investigated in this paper. The sensor was …

Gold in the form of bulk metal mostly does not react with gases or liquids at room
temperature. On the other hand, nanoparticles of gold are very reactive and useful as …