Recent Progress in Optical Chemical Sensors

Abstract

Optical chemical sensors have promoted escalating interest in the determination of various pollutants in the environment, which are creating toxicity and may cause serious health problems. This review paper focuses particularly on the recent progress and developments in this field; the working principles and basic classes of optical chemical sensors have been briefly described.

Optical properties of amphiphilic copolymer-based self-assemblies

“…The development of optical sensors for the detection of environmental and biological relevant species is currently of great interests due to their facile usage in solutions as well as their high sensitivity and selectivity for target species [135,136]. Traditional approaches for the design of new optical chemosensors or improvement of existing sensor systems are based on modification of dyes, which is time-consuming and costly.…”

Sensor Array Design for Complex Sensing Tasks

“…In MEMS sensors, this is generally either deflection or change in oscillating frequency of a polymer-coated microcantilever. Finally, optical sensors include those based on materials in which analyte vapor induces a change in the way light is absorbed, emitted, or refracted by the sensing material (22)(23)(24)(25)(26)(27)(28)(29)(30). These include sensors based on vapochromic dyes (24)(25)(26)(27), fluorescence (28,29), chemiluminescence (30,31), and surface plasmon resonance (32, 33).…”

Micro- and nanostructured sol-gel-based materials for optical chemical sensing (2005–2015)

“…Melde et al focused on mesoporous silica materials for optical sensing applications [21]. Finally, Qazi et al reviewed recent progress in OCS which included both direct and reagent-mediated sensors and a range of sensor platforms including OFS [22]. The review summarised the recent literature on optical sensors for the detection of heavy metals where most sensors reported used polymer matrices.…”