Department of Chemistry, Sardar Vallbhbhai National Institute of Technology, Surat, 395007, Gujarat, India.
ASPEE SHAKILAM Biotechnology Institute, Navsari Agricultural University, Surat, 395007, Gujarat, India.
J Fluoresc. 2024 Nov;34(6):2583-2592. doi: 10.1007/s10895-023-03464-0. Epub 2023 Oct 16.
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.
本文提出了一种新的合成路线，使用番泻叶（A. senna）和聚乙烯吡咯烷酮（PVP）作为模板，合成高发光的绿黄色荧光铜纳米簇（PVP@A. senna-Cu NCs）。番泻叶植物提取物主要含有多种植物化学物质，包括糖苷、糖、皂苷、酚类和萜类化合物，具有良好的药理活性，如抗炎、抗氧化和抗糖尿病作用。PVP 是一种稳定且生物相容的聚合物，可用作 PVP@A. senna-Cu NCs 合成的稳定剂。通过各种分析技术证实了所制备的 Cu NCs 的尺寸、表面功能和元素组成。所制备的绿黄色荧光 Cu NCs 对氟虫腈表现出显著的选择性，因此有利于在 3.0-30 μM 的范围内测定氟虫腈农药，检测限为 65.19 nM。更重要的是，PVP@A. senna-Cu NCs 成功地应用于蔬菜和谷物样品中氟虫腈的测定。
