ArticleSensors (Basel, Switzerland)2020
Chitosan-Based Nanocomposites for Glyphosate Detection Using Surface Plasmon Resonance Sensor.
Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 30 citations in OpenAlex.
- Green synthesis of silver titanium dioxide nanocomposites functionalized with chitosan for enhanced antimicrobial and antioxidant activity.Discover nano · 2026Article
- Sustainable biosynthesis of NiO-carbon nanocomposites with enhanced charge dynamics for high-performance electrochemical pesticide detection in agricultural applications and photocatalytic remediation.Scientific reports · 2026Article
- Molecularly Imprinted Electrochemical Sensor Based on Palladium@Yttrium Oxide@Boronnitride Nanocomposite for Determination of Glyphosate Herbicide in Drinking Water Samples.Foods (Basel, Switzerland) · 2025Article
- Research Advances in Nanosensor for Pesticide Detection in Agricultural Products.Nanomaterials (Basel, Switzerland) · 2025Review
- Surface Plasmon Resonance Imaging Sensor for Detection of Photolytically and Photocatalytically Degraded Glyphosate.Sensors (Basel, Switzerland) · 2022Article
- Enzymatic Laser-Induced Graphene Biosensor for Electrochemical Sensing of the Herbicide Glyphosate.Global challenges (Hoboken, NJ) · 2022Article
- Rational Design of Molecularly Imprinted Polymers Using Quaternary Ammonium Cations for Glyphosate Detection.Sensors (Basel, Switzerland) · 2021Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This article describes an optical method based on the association of surface plasmon resonance (SPR) with chitosan (CS) film and its nanocomposites, including zinc oxide (ZnO) or graphene oxide (GO) for glyphosate detection. CS and CS/ZnO or CS/GO thin films were deposited on an Au chip using the spin coating technique. The characterization, morphology, and composition of these films were performed by Fourier-transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), and contact angle technique. Sensor preparation conditions including the cross-linking and mobile phase (pH and salinity) were investigated and thoroughly optimized. Results showed that the CS/ZnO thin-film composite provides the highest sensitivity for glyphosate sensing with a low detection limit of 8 nM and with high reproducibility. From the Langmuir-type adsorption model and the effect of ionic strength, the adsorption mechanisms of glyphosate could be controlled by electrostatic and steric interaction with possible formation of 1:1 outer-sphere surface complexes. The selectivity of the optical method was investigated with respect to the sorption of glyphosate metabolite (aminomethylphosphonic acid) (AMPA), glufosinate, and one of the glufonisate metabolites (3-methyl-phosphinico-propionic acid) (MPPA). Results showed that the SPR sensor offers a very good selectivity for glyphosate, but the competition of other molecules could still occur in aqueous systems.
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Registered trials
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