Synthesis of Greenish-Yellow Fluorescent Copper Nanocluster for the Selective and Sensitive Detection of Fipronil Pesticide in Vegetables and Grain Samples

Nirav Vajubhai Ghinaiya; Vaibhavkumar N Mehta; Sanjay Jha; Tae Jung Park; Suresh Kumar Kailasa

doi:10.1007/s10895-023-03464-0

Synthesis of Greenish-Yellow Fluorescent Copper Nanocluster for the Selective and Sensitive Detection of Fipronil Pesticide in Vegetables and Grain Samples

J Fluoresc. 2023 Oct 16. doi: 10.1007/s10895-023-03464-0. Online ahead of print.

Authors

Nirav Vajubhai Ghinaiya¹, Vaibhavkumar N Mehta², Sanjay Jha², Tae Jung Park³, Suresh Kumar Kailasa⁴

Affiliations

¹ Department of Chemistry, Sardar Vallbhbhai National Institute of Technology, Surat, 395007, Gujarat, India.
² ASPEE SHAKILAM Biotechnology Institute, Navsari Agricultural University, Surat, 395007, Gujarat, India.
³ Department of Chemistry, Research Institute of Chem-Bio Diagnostic Technology, Chung-Ang University, 84, Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea.
⁴ Department of Chemistry, Sardar Vallbhbhai National Institute of Technology, Surat, 395007, Gujarat, India. sureshkumarchem@gmail.com.

PMID: 37843695
DOI: 10.1007/s10895-023-03464-0

Abstract

In this paper, a new synthetic route is introduced for the synthesis of high-luminescent greenish-yellow fluorescent copper nanoclusters (PVP@A. senna-Cu NCs) using Avaram senna (A. senna) and polyvinylpyrrolidone (PVP) as templates. A. senna plant extract mainly contains variety of phytochemicals including glycosides, sugars, saponins, phenols, and terpenoids that show good pharmacological activities such as anti-inflammatory, antioxidant, and antidiabetic. PVP is a stable and biocompatible polymer that is used as a stabilizing agent for the synthesis of PVP@A. senna-Cu NCs. The size, surface functionality, and element composition of the fabricated Cu NCs were confirmed by various analytical techniques. The as-prepared greenish-yellow fluorescent Cu NCs exhibit significant selectivity towards fipronil, thereby favoring to assay fipronil pesticide with good linearity in the range of 3.0-30 μM with a detection limit of 65.19 nM. More importantly, PVP@A. senna-Cu NCs are successfully applied to assay fipronil in vegetable and grain samples.

Keywords: Avaram senna plant extract; Fipronil pesticide; Fluorescence spectroscopy; PVP@a. senna-Cu NCs; Vegetable and grain samples.