Hybrid Materials Based on Conducting Polymers for Nitrite Sensing: A Mini Review

Abstract

Well‐known as a hazardous compound, nitrite constitute a real threat to the public health. So, there is a pressing need to detect and quantify them in different matrix. Even though conventional analytical methods can be used to address this issue, electrochemistry allows a fast, sensitive, and efficient analysis. Conducting polymers continue to raise great interest among scientific communities due to their properties. Moreover, their combination with carbon nanomaterials, or metallic nanoparticles improves their properties, and provides great results. In this paper, we will focus on some revealing works devoted to the electrochemical detection of nitrite using this kind of materials.

Smartphone‐Assisted Electrochemical Sensor Based on Mg0.5Co2.5(PO4)2 and Carbon Black for Trace Bisphenol A Detection

“…[12][13][14] Despite their high sensitivity and selectivity, these methods require expensive equipment, complex sample preparations, and trained staff. [15] In this context, electrochemical methods ensure simple and rapid measurements, miniaturized fabrication process, less chemical methods, and they can be considered as less harmful approaches. [16][17][18][19][20][21][22][23] Moreover, the possibility to design miniaturized sensors connectable with cell phone for an on-the-spot detection of the target analytes in various matrices makes this method very attractive.…”

“…To address this issue, many analytical methods for detecting this pollutant in several matrices have been developed such as chromatography and mass spectrometry [12–14] . Despite their high sensitivity and selectivity, these methods require expensive equipment, complex sample preparations, and trained staff [15] . In this context, electrochemical methods ensure simple and rapid measurements, miniaturized fabrication process, less chemical methods, and they can be considered as less harmful approaches [16–23] .…”

Nanocomposite Films of Silver Nanoparticles and Conjugated Copolymer in Natural and Nano-Form: Structural and Morphological Studies

“…Since the discovery of conjugated polymers (CPs), the use of these materials in different applications has been intensively evaluated, such as in light-emitting diodes (LED), solar cells, and sensors [ 1 ]. Due to its favorable electrical, thermal, and optical properties, the use of CPs in sensor development provides several advantages such as structural stability, improvement of response time, sensibility, and specificity of the sensor [ 1 , 2 ]. In particular, polyfluorene (PF) and poly(3,4-ethylenedioxythiophene) (PEDOT) show promising properties for application as sensors, such as a high emission in the blue region for PF [ 1 ], in addition to the high conductivity, biocompatibility, and feasibility to functionalization of PEDOT [ 3 ].…”

Electrochemical Sensing of Nitrite Ions Using Modified Electrode by Poly 1,8-Diaminonaphthalene/Functionalized Multi-Walled Carbon Nanotubes

“…They have also shown excellent electrocatalytic activity towards nitrite detection. Recently, several hybrid materials based on CPs have been developed for nitrite sensing ( Salhi et al, 2021 ). Rajalakshmi and John (2015) , developed a composite based on 5-amino-1,3,4-thiadiazole-2-thiol and MWCNT for nitrite detection and obtained a very low detection limit of about 0.2 nM.…”