Disposable tungsten sulfide framed polydopamine nanostructure modified sensor for non-enzymatic electrochemical detection of organophosphate pesticide

TiO2 Nanosheet/In2S3 Nanosheet/Polydopamine Layered Composites for Constructing Enzymatic and Nonenzymatic Dual Sensors under Visible Light

“…Comparing the IR spectra of different composites in Figure S3 revealed that the TiO 2 /In 2 S 3 /PDA electrode exhibited a considerably greater absorption intensity from 3400 to 3500 cm –1 than the other electrodes due to the presence of −OH and −NH 2 in PDA. The increase in absorption at 1633 cm –1 also supported the introduction of −OH from PDA. , The peak at 1070 cm –1 may indicate the dehydration of catechol groups in PDA, leading to C–O–C stretching . These findings were consistent with the XPS results.…”

Electrochemical Sensors based on Gold–Silver Core–Shell Nanoparticles Combined with a Graphene/PEDOT:PSS Composite Modified Glassy Carbon Electrode for Paraoxon-ethyl Detection

“…The concern about pesticide residue in foods has become a critical issue in modern farming due to excessive and uncontrolled application to agricultural land, which has led to environmental pollution and aquatic pollution. In the literature, the percentage of pesticide sprayed on agricultural crops that reaches the target pest is thought to be less than 0.1%, with the rest contaminating the surrounding environment and left as pesticide residues. , Most pesticide residues are classified as toxic and harmful substances depending on their chemical structures, which can enter the food chain through water, soil, and food including vegetables and fruits. , Moreover, humans can absorb pesticide residue from the environment through their skin and respiratory and digestive systems. , One of the pesticide residues that might occur in the environment and enter the human body via the digestive system is paraoxon-ethyl, which is used in agricultural farming because of its exceptional ability to control and eradicate the population of pests and insects. , The accumulation of trace-level concentrations of paraoxon-ethyl residue in the human body can cause a serious threat to the metabolic, immune, and central nervous systems . Furthermore, the United States Environmental Protection Agency (USEPA) declared that paraoxon-ethyl (one of the most widespread organophosphate insecticides) is a dangerous compound due to its 70% similarity of chemical properties with the nerve agent sarin .…”

“… 5 , 6 One of the pesticide residues that might occur in the environment and enter the human body via the digestive system is paraoxon-ethyl, which is used in agricultural farming because of its exceptional ability to control and eradicate the population of pests and insects. 7 , 8 The accumulation of trace-level concentrations of paraoxon-ethyl residue in the human body can cause a serious threat to the metabolic, 9 immune, 10 and central nervous systems. 11 Furthermore, the United States Environmental Protection Agency (USEPA) declared that paraoxon-ethyl (one of the most widespread organophosphate insecticides) is a dangerous compound due to its 70% similarity of chemical properties with the nerve agent sarin.…”

Exploring the Use of a Lipopeptide in Dipalmitoylphosphatidylcholine Monolayers for Enhanced Detection of Glyphosate in Aqueous Environments

“…One of the main damages caused by pesticides to human health is the mutation of cell genes, which can later trigger cancer in various parts of the body. , The maximum allowable limits for individual pesticides and their associated compounds are 0.1 μg/L in drinking water and 0.05 mg/kg in plant foods . The long-term presence of pesticide residues in water and agricultural products can cause severe diseases and side effects, such as Alzheimer’s, Parkinson’s, eye pain, gastrointestinal pain, seizures, respiratory failure, paralysis, and even the risk of death in humans due to their stability and increased toxicity. − …”

“… 16 The long-term presence of pesticide residues in water and agricultural products can cause severe diseases and side effects, such as Alzheimer’s, Parkinson’s, eye pain, gastrointestinal pain, seizures, respiratory failure, paralysis, and even the risk of death in humans due to their stability and increased toxicity. 17 − 19 …”