Role of Quantum Dots in Volatile Poison Detection

Introduction

Analytical environmental control needs to develop appropriate sensors which can make reliable and fast detection as well as measurement of environmentally important chemical compounds. From a broad range of pollutants, the control of high-vapor-pressure toxins in term of the volatile organic species is very essential in work-related protection and health control (for example) in atmospheres of workplace) as they can generate the harmful effects on health of human beings.

Due to their desirable characteristics, such as strong visible-band absorption, superior mechanical, and high electrical conductivity features, developing nanomaterials can now be employed to customize optical and electrochemical (bio)sensors. In fact, a wide range of nanomaterials are used, including spheres and particles [metallic nanoparticles (NPs), quantum dots (QDs), and magnetic beads], nanorods, nanotubes, nanofibers, and nanowires, as well as nanocomposites made of nanopolymers, nanofilms, and nanoplates (Arduini et al., 2020; Wang et al., 2023). In this light, it is noteworthy that the configuration of nanomaterials and biomaterials plays a significant role in the design of hybrid nanostructured instruments to achieve “greater operational/storage stability, resistance, response time, ease of sampling, low sample volume and better selectivity with increased detection performance” (Arduini et al., 2016; Munteanu et al., 2023).