Electrochemical Magnetoimmunosensing Strategy for the Detection of Pesticides Residues

Zacco, E.; Pividori, María Isabel; Alegret, Salvador; Galvé, Roger; Marco, M.‐Pilar

doi:10.1021/ac0512610

Cited by 147 publications

(70 citation statements)

References 26 publications

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“…This affinity biosensors rely on the binding of a target analyte (antigen, Ag) to its specific antibody (Ab), thus requiring the production of a particular Ab for each antigen determination. Provided that the production of antibodies against small molecules such as pesticides is a difficult and costly process, most of the work developed in this area has been focused on the detection of atrazine, for which specific antibodies have been developed and thoroughly assessed (Table 3) [64][65][66][67][68][69][70][71]. Examples of electrochemical immunosensors for chlorpyrifos [72], diuron [73,74], isoproturon [75] and endosulfan [76] have also been found in the literature ( Among the immunosensor formats applied for pesticide analysis, label-free reagentless approaches should be mentioned [70,71,76].…”

Section: Electrochemical Biosensorsmentioning

confidence: 99%

Electrochemical devices for the detection of priority pollutants listed in the EU water framework directive

Díaz‐González

Gutiérrez-Capitán

Niu

et al. 2016

TrAC Trends in Analytical Chemistry

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Monitoring chemical contamination in water is a must to guarantee the supply to the society of this more and more scarce prized asset. The European Union as well as other bodies have released reports and directives defining lists of substances whose detection in waters should be prioritized and posing limits to the maximum allowable concentrations that drinking water must have. The scientific community has been actively working on the development of analytical tools that could be applied in the detection of hazardous chemical species in waters. Here, an overview of electrochemical devices with the potential of being implemented to the monitoring of the forty five pollutants include in the list of priority substances set in the 2013 EU directive that could be grouped into heavy metals, pesticides, hydrocarbons, halogenated hydrocarbons and alkyl phenols, is given, aiming at showing their benefits and limitations in this scenario.

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Section: Electrochemical Biosensorsmentioning

confidence: 99%

Electrochemical devices for the detection of priority pollutants listed in the EU water framework directive

Díaz‐González

Gutiérrez-Capitán

Niu

et al. 2016

TrAC Trends in Analytical Chemistry

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“…191 The immunoassay for atrazine was a direct competitive assay using a peroxidase tracer as the enzymatic label. Upon completion of the immunochemical reactions, the magnetic beads were captured by a magnetosensor made of graphite-epoxy composite that also served as the electrochemical transducer.…”

Section: Immunosensorsmentioning

confidence: 99%

Electrochemical Sensors

2013

Encyclopedia of Biophysics

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This review covers publications related to electrochemical sensors that appeared in print during the years 2006 and 2007. The focus of the review is on the development of electrochemical sensing principles including potentiometric and chronopotentiometric sensors, reference electrodes, voltammetric sensors, and electrochemical biosensors.References were collected by searching electrochemical sensor-related work using ACS SciFinder and ISI Science Citation Index. In addition, the tables of contents of several analytical journals were reviewed manually to identify relevant articles. Only original and review articles written in English were considered. Patents, book chapters or book series, and conference proceedings or abstracts were not considered for this review. The number of references was limited to 200 and as a result only a fraction of relevant work is covered. Specifically, the review was written to focus on fundamental aspects of electrochemical sensor research emphasizing new chemical concepts and not simply the application of electrochemical sensors. On the basis of these guidelines, several hybrid systems whereby electrochemical detection schemes were combined with a separation technique such as microdialysis, electrophoresis, chromatography, and lab-on-a-chip were not included in this review.We ask that our readers note that our review is not a comprehensive coverage of the above topics, but rather a snapshot of research conducted over the past two years. Obviously, electrochemical sensor research is still expanding and of interest to a number of disciplines beyond traditional chemistry. As such, it was not possible to cover all manuscripts published. We apologize to the authors of manuscripts that were not included in this review. POTENTIOMETRIC SENSORS ReviewsBakker and Pretsch published a broad review on modern potentiometry describing techniques for improving sensor performance, miniaturizing sensor platforms, and expanding the application of potentiometric sensors for environmental trace analysis and biosensing (98 citations). 1 Likewise, Pretsch provided a general overview on ion-selective electrodes (ISEs) focusing on improving detection limits and understanding non-classical (i.e., non-equilibrium) potentiometry for monitoring clinical relevant polyions such as heparin and protamine (81 citations). 2 De Marco et al. reviewed ISE methodologies for the analysis of trace metals and anions (e.g., F − , CN − , NO 3 − , NO 2 − , and Cl − ) in environmental samples. 3

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“…In addition, due to the improved washing and separation steps, the matrix effect is minimized in complex samples [17]. Gold magnetic nanoparticles (Au-MNPs) have outstanding characteristics with combining the superparamagnetism of magnetic nanoparticles and the ability of being modified by biomolecules on gold surface.…”

Section: Introductionmentioning

confidence: 99%

Gold Magnetic Nanoparticles-based Chemiluminescent Immunoassay for Detection of Chloramphenicol in Milk

et al. 2016

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Abstract. chemiluminescent immunoassays (CLIA) based on gold magnetic nanoparticles (Au-MNPs) were developed for rapid analysis of chloramphen icol (CAP) in milk sample. Anti-CAP antibodies were immobilized on the surfaces of Au-MNPs, luminol (Method I) and 2',6'-DiMethylcarbonylphenyl-10-sulfopropylacridinium-9-carboxylate 4'-NHS Ester, (NSP-DMAE-NHS, Method II) were exploited in competitive CLIA for CAP detection in milk using a homemade luminescent measurement system. The sensitivities and limits of detection (LODs) of the two methods were obtained according to the inhibition curves. It indicated that NSP-DMAE-NHS as luminescence reagent (reaction II) was more sensitive and effective than luminol (reaction I). The LOD of reaction II reached 0.008 ng/ml while it was 4 ng/ml in reaction I. Moreover, the linear range of the inhibition curve of the former was wider than that of the latter. Such results indicated that the proposed CLIA stratery employing NSP-DMAE-NHS was more sensitive than other immunoassay method for CAP detection.

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Electrochemical Magnetoimmunosensing Strategy for the Detection of Pesticides Residues

Cited by 147 publications

References 26 publications

Electrochemical devices for the detection of priority pollutants listed in the EU water framework directive

Electrochemical devices for the detection of priority pollutants listed in the EU water framework directive

Electrochemical Sensors

Gold Magnetic Nanoparticles-based Chemiluminescent Immunoassay for Detection of Chloramphenicol in Milk

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