Recent advancements in the detection of organophosphate pesticides: a review

Abstract

Organophosphorus pesticides (OPPs) are generally utilized for the protection of crops from pests. Because the use of OPPs in various agricultural operations has expanded dramatically, precise monitoring of their concentration...

Two bis-ligand-coordinated Zn(ii)-MOFs for luminescent sensing of ions, antibiotics and pesticides in aqueous solutions

“…29 Many studies have focused on luminescent metal-organic frameworks (LMOFs). 30,31 As a subfamily of MOFs, LMOFs have been widely explored based on their prominent optical properties and used in many elds, such as the detection of metal cations, [32][33][34][35] anions, 5,36,37 solvents, 38,39 volatiles, 40 antibiotics, [41][42][43][44][45] pesticides, [46][47][48] nitrocontaining compounds, [49][50][51][52][53] pH, 54 amino acids, 55 and other organic molecules. 30,31 During these processes, LMOFs displayed the great advantages of simplied equipment, fast response time, high selectivity and sensitivity, recyclability and ease of use.…”

“…31 To date, uorescence sensing progress with LMOFs has been due mainly to uorescence turn-on, 33,56 uorescence turnoff or uorescence shis. 28,46,57 Fluorescence turnoff, or uorescence quenching, in most cases, is based on material transformation, 58,59 electron transfer 57 and/or energy competition/transfer mechanisms. 28,46 Among the LMOFs, luminescence source emissions that are based on lanthanide cores are interesting due to the inherent narrow band luminescence, long lifetime, and large Stokes shi.…”

“…28,46,57 Fluorescence turnoff, or uorescence quenching, in most cases, is based on material transformation, 58,59 electron transfer 57 and/or energy competition/transfer mechanisms. 28,46 Among the LMOFs, luminescence source emissions that are based on lanthanide cores are interesting due to the inherent narrow band luminescence, long lifetime, and large Stokes shi. 60 In addition to lanthanide LMOFs, d-block LMOFs have been reported more recently as promising uorescence sensors.…”

The Bioanalytical and Biomedical Applications of Polymer Modified Substrates

“…Polymers, including synthetic polymers, semi-synthetic polymers and biopolymers, have been demonstrated as a valuable tool for tuning the physicochemical properties of a surface [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Polymer modified substrates have been extensively applied in various fields such as biomedicine, food safety, environment protection and microelectronics, because the polymers with high molecular weight provide multiple options for the immobilization of bioactive molecules with diverse functionalities and various labeling probes suitable for different detection principles [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. In the presence of properly selected reactive groups, including hydroxyl, carboxyl, aldehyde and amine on polymer chains, bioactive compounds can be easily immobilized on the polymer surfaces through covalent reactions and non-covalent interactions.…”

Monitoring of pesticide amount in water and drinkable food by a fluorescence‐based biosensor

“…However, these methodologies are not adequate for real‐time pesticides monitoring, since they are time‐consuming and require highly skilled personnel. To overcome this problem, fluorescent biosensors have been implemented as an easy, cheap and fast technique for direct pesticides monitoring (Bhattu et al, 2021 ). Several protein‐based biosensors have been recently used for organophosphate (OP) pesticides detection, and most of them are based on acetylcholinesterase (AChE) inhibition mechanisms (Cao et al, 2020 ).…”