Disposable carbon nanotube-based antifouling electrochemical sensors for detection of morphine in unprocessed coffee and milk

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu2O Nanoparticles/Carbon Fiber Electrochemical Microsensor

“…First, the hydrophobicity of N-CNTs can effectively reduce the fouling on the electrode since the hydrophobic surface with low free energy can reduce fouling adsorption . Second, the three-dimensional nanonetwork morphology of N-CNTs can restrict large-scale biomolecules from entering the cavity of the nanonetwork, thus avoiding contamination of the internal electrode . Third, the charge repulsions between the negatively charged organic molecule and the negatively charged N-CNTs also prevent the electrode from being fouled when the electrode is in open circuit.…”

Interpol Review of Drug Analysis 2019-2022

“…2019 novel and sensitive sensor for morphine based on electrochemically synthesized poly(p-aminobenzenesulfonicacid)/reduced grapheneoxide (poly(p-ABSA)/RGO) composite modified glassy carbon electrode [ 212 ]; nine step method to synthesize morphine from o-vanillin [ 213 ]; immunochromatographic lateral flow strip with gold nanoparticles labeling was developed for monitoring of morphine [ 214 ]; electrochemical sensor for detection of morphine [ 215 ]; 2020 Review of electrochemical detection methods of differeent moodified electrodes for deteection of morphine [ 216 ]; synthesis and use of poly(cetyltrimethylammoniumbromide)/graphene oxide (poly(CTAB)/GO) composite as novel sensor for morphine detection [ 217 ]; sensor for determination of morphine and diclofenac via differential pulse voltammetric, cyclic voltammetric, and chronoamperometry [ 218 ]; fluorescence immunoassay method for detection of morphine [ 219 ]; 2021 surface ionization mass spectrometry method for the direct detection and analysis of morphine [ 220 ]; a quantitative lateral flow immunoassay instrument that uses magnetic resistance sensors for quantitative measurement of morphine [ 221 ]; comparison of two different sensing platforms (electrochemical impedance spectroscopy and a quartz crystal microbalance) for the detection of morphine [ 222 ]; evaluation of the use of plant extracts and herbal products as a SPME sorbet for use with RP-HPLC and LC-MS/MS for detection of Morphine and Codeine [ 223 ]; electrochemical sensor for DPV determination of morphine [ 224 ]; utilization of a gas-phase chloride attachment with IMS for selective detection of morphine in a morphine/codeine mixture [ 225 ]; N,Cl-doped deep eutectic solvents-based carbon dots as a selective fluorescent probe for determination of morphine in food [ 226 ]; electrochemical sensor for detection of morphine in drug samples [ 227 ]; 2022 electrochemical sensor for simultaneous detection of Diclofenac and Morphine [ 228 ]; sensor for detection of morphine [ 229 , 230 ]; methodology to isolate morphine from opium and heroin (deacetylated to morphine) for isotopic analysis and regional analysis of submissions from Mexico, South America, Southwest Asia, and Southeast Asia [ 231 ]; electrochemical sensors for detection of morphine in unprocessed coffee and milk [ 232 ].…”

Screen-Printed Graphite Electrode Modified with Graphene-Co3O4 Nanocomposite: Voltammetric Assay of Morphine in the Presence of Diclofenac in Pharmaceutical and Biological Samples

“…Accordingly, there have been various analytical ways to detect diclofenac and morphine in diverse matrices, some of which are high-performance liquid chromatography [12,13], chemiluminescence [14,15], capillary electrophoresis [16,17], spectrophotometry [18,19], gas chromatography-mass spectroscopy [20,21], thin-layer chromatography [22], and some electrochemical methods [23][24][25][26]. High selectivity, high sensitivity, and minimalinterference impacts are prominent features of a potent analytical method.…”