A Review on Organic Colorimetric and Fluorescent Chemosensors for the Detection of Zn(II) Ions

Abstract

Organic compounds display several electronic and structural features which enable their application in various fields, ranging from biological to non-biological. These compounds contain heteroatoms like sulfur, nitrogen and, oxygen, which provide coordination sites to act as ligands in the field of coordination chemistry and are used as chemosensors to detect various metal ions. This review article covers different organic compounds including Schiff bases, thiourea, pyridine, rhodamine, triazole, pyrene, coumarin, imidazole, diaminomaleonitrile, naphthoxazole, pyrimidine, thiophene, thioether, and other functional groups based chemosensors that contain heteroatoms like sulfur, nitrogen and, oxygen for fluorimetric and colorimetric detection of Zn(II) ions in different environmental, agricultural, and biological samples. Further, the sensing performances of these chemosensors have been compared and discussed which could help the readers for the future design of organic fluorescent and colorimetric chemosensors for the detection of Zn(II) ions. We hope this study will support the new thoughts to design a simple, efficient, selective, and sensitive chemosensor for the detection of Zn(II) ions in different samples (environmental, agricultural, and biological).

Graphical Abstract

Keywords:

• Chemosensors
• fluorimetric
• heteroatoms
• non-biological
• oxygen
• sulfur

Acknowledgments

The author would like to express their gratitude to King Abdulaziz University College of Science and Arts, Saudi Arabia for providing administrative and technical support.

Disclosure statement

The authors declare no conflict of interest.