Gold Nanomaterials and their Composites as Electrochemical Sensing Platforms for Nitrite Detection. Issue 20 (19th September 2022) - Saha, Protity
Abstract: Nitrite is one of the abundant toxic components existing in the environment and is likely to have a great potential to affect human health badly. For that reason, it has become crucial to build a reliable nitrite detection method. In recent years, several nitrite monitoring systems have been proposed. Compared with traditional analytical strategies, the electrochemical approach has a bunch of advantages, including low cost, rapid response, easy operation, simplicity, etc. In this case, noble metal nanomaterials, especially Au‐based nanomaterials, have attracted attention in electrode modification because of higher catalytic activity, facile mass transfer, and broad active area for determining nitrite. This review is based on the state‐of‐the‐art, which includes a variety of nanomaterials that have been coupled with gold nanoparticles (AuNPs) for the creation of nanocomposites, and the construction as well as development of electrochemical sensors for nitrite detection over the last few years (2016‐2022). A background study on synthesizing different morphological AuNPs and nanocomposites has also been introduced. The fabrication methods and sensing capabilities of modified electrodes are given special consideration. Abstract : Nitrite is harmful for humans and animals over the long run, leading to a range of health problems and serious environmental challenges. Based on the significance of this urgent problem, researchers are constantly looking for an effective strategy for getting rid of the nitrite that is present in every aspect of our daily lives. The spotlight of this review paper is given on recent advancements in introducing AuNPs along with different nanomaterials to modify electrodes for sensing nitrite.