A Brief Review of Schiff Bases of Pyridine Derivatives as Chemosensors

Abstract

There is a growing need to accurately detect pollutants like toxins and metal ions, especially in health and environmental fields. Current detection methods, such as flame atomic absorption spectroscopy and inductively coupled plasma mass spectrometry, are effective but often expensive, time-consuming, and not very sensitive.To address these issues, researchers are exploring optical chemosensors, particularly those based on Schiff bases, for detecting metal ions. Schiff bases are useful in chemistry, especially for binding and detecting metal ions. Schiff base complexes with transition metals exhibit properties like catalytic activity, fluorescence, and magnetic features.Pyridine-based Schiff bases, formed from pyridine derivatives, are especially notable for their strong binding abilities and bioactivity. These Schiff bases are valuable in medicinal and analytical chemistry due to their ability to selectively detect metal ions. This review focuses on the development of fluorescence probes using pyridine-based Schiff bases over the last decade, highlighting their usefulness in detecting specific ions across environmental, biological, and industrial fields.