Fast Detection of Bismerthiazol in Cabbage Based on Fluorescence Quenching of Protein-Capping Gold Nanoclusters

Abstract

In this work, bismerthiazol was firstly assayed by a fast and portable method employing protein-capping gold nanoculsters as probes. The luminescent intensity of the nanoclusters showed a correlative response towards bismerthiazol from 5 to 4000 μg/mL with a linear relation in the range of 5 - 100 μg/mL. As little as 5 μg/mL of bismerthiazol could be quantified. The high affinity of bismerthiazol to interact with the soybean protein-capped gold nanoclusters contributed to the excellent selectivity of this method over other common pesticides. The recoveries in several cabbage samples were 101 - 135%, indicating good performance in practical applications. By comparison to previous reported approaches, this method bears advantages including simple operation, fast response, visual readout and good selectivity.

Biosensors in Food and Healthcare Industries: Bio-Coatings Based on Biogenic Nanoparticles and Biopolymers

“…A new method for detecting bismerthiazol [131], a commonly used fungicide in cabbage was developed using protein-capping gold nanoclusters (PC-GNCs). The PC-GNCs were synthesised using a simple, green method, and were then functionalised with the protein from soybeans to enhance their stability and biocompatibility.…”

Discovery of Epipodophyllotoxin-Derived B2 as Promising XooFtsZ Inhibitor for Controlling Bacterial Cell Division: Structure-Based Virtual Screening, Synthesis, and SAR Study

“…For instance, bismerthiazol (BT), a commercial bactericide active against Xanthomonas oryzae pv. oryzae ( Xoo ), exhibits subchronic and chronic toxicity in humans upon oral consumption [ 9 ]. These drawbacks have highlighted the urgent need for safer and more environmentally responsible pesticides.…”

A novel gold-nanocluster-based fluorescent sensor for detection of sodium 2-mercaptoethanesulfonate

“…[1][2][3][4][5][6][7][8][9][10][11][12] Up to now, Au NCs-based uorescence sensors are mainly dependent on the uorescence-quenching effect via the interactions between Au atoms and the analytes (such as bismerthiazol and Hg 2+ ). 13,14 Previous studies have shown that the uorescence behavior of Au NCs is not only highly size-dependent, but also correlated with the surface ligands and ligand density. 15 For example, Zhang et al 16 successfully prepared Au NC-based uorescent probes to detect glutathione (GSH) by signicantly enhancing the uorescence intensity of Au NCs, which inspired us to consider the possibility of broadening the applications by developing Au NCs with more functional ligands.…”