Diclofenac determination using CeO2 nanoparticle modified screen-printed electrodes – A study of background correction

Carvalho, Rafaela C. de; Betts, Anthony; Cassidy, John

doi:10.1016/j.microc.2020.105258

Cited by 26 publications

(18 citation statements)

References 57 publications

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“…In the literature are few articles describing the use of screen-printed sensors in the monitoring of painkillers residues (DF, PA, IB, and TR) in environmental waters samples [ 82 , 83 , 98 , 99 , 100 , 101 , 102 , 103 , 104 ]. These sensors have also found application in the determination of painkillers in pharmaceutical preparations and biological samples, e.g., urine and serum [ 84 , 85 , 86 , 87 , 96 , 97 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 ]. There are no studies on voltammetric procedures to determine acetylsalicylic acid and naproxen in water samples in the literature.…”

Section: Application Of Screen-printed Voltammetric Sensors For the P...mentioning

confidence: 99%

Screen-Printed Voltammetric Sensors—Tools for Environmental Water Monitoring of Painkillers

Tyszczuk‐Rotko

Kozak

Czech

2022

Sensors

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The dynamic production and usage of pharmaceuticals, mainly painkillers, indicates the growing problem of environmental contamination. Therefore, the monitoring of pharmaceutical concentrations in environmental samples, mostly aquatic, is necessary. This article focuses on applying screen-printed voltammetric sensors for the voltammetric determination of painkillers residues, including non-steroidal anti-inflammatory drugs, paracetamol, and tramadol in environmental water samples. The main advantages of these electrodes are simplicity, reliability, portability, small instrumental setups comprising the three electrodes, and modest cost. Moreover, the electroconductivity, catalytic activity, and surface area can be easily improved by modifying the electrode surface with carbon nanomaterials, polymer films, or electrochemical activation.

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Section: Application Of Screen-printed Voltammetric Sensors For the P...mentioning

confidence: 99%

Screen-Printed Voltammetric Sensors—Tools for Environmental Water Monitoring of Painkillers

Tyszczuk‐Rotko

Kozak

Czech

2022

Sensors

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“…The SEM image of the nanosensor indicated o smoother surface of the electrode because the NPs filled the graphite gaps. The NPs also increased the electrochemical active area of the working electrode [ 281 ].…”

Section: Metal Nanoparticles and Carbon-based Nanomaterials In (Bio)sensors Designmentioning

confidence: 99%

Metal Nanoparticles and Carbon-Based Nanomaterials for Improved Performances of Electrochemical (Bio)Sensors with Biomedical Applications

et al. 2021

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Monitoring human health for early detection of disease conditions or health disorders is of major clinical importance for maintaining a healthy life. Sensors are small devices employed for qualitative and quantitative determination of various analytes by monitoring their properties using a certain transduction method. A “real-time” biosensor includes a biological recognition receptor (such as an antibody, enzyme, nucleic acid or whole cell) and a transducer to convert the biological binding event to a detectable signal, which is read out indicating both the presence and concentration of the analyte molecule. A wide range of specific analytes with biomedical significance at ultralow concentration can be sensitively detected. In nano(bio)sensors, nanoparticles (NPs) are incorporated into the (bio)sensor design by attachment to the suitably modified platforms. For this purpose, metal nanoparticles have many advantageous properties making them useful in the transducer component of the (bio)sensors. Gold, silver and platinum NPs have been the most popular ones, each form of these metallic NPs exhibiting special surface and interface features, which significantly improve the biocompatibility and transduction of the (bio)sensor compared to the same process in the absence of these NPs. This comprehensive review is focused on the main types of NPs used for electrochemical (bio)sensors design, especially screen-printed electrodes, with their specific medical application due to their improved analytical performances and miniaturized form. Other advantages such as supporting real-time decision and rapid manipulation are pointed out. A special attention is paid to carbon-based nanomaterials (especially carbon nanotubes and graphene), used by themselves or decorated with metal nanoparticles, with excellent features such as high surface area, excellent conductivity, effective catalytic properties and biocompatibility, which confer to these hybrid nanocomposites a wide biomedical applicability.

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“…are of interest as far as they provide a high effective area of the sensors, high selectivity, and sensitivity of target analyte determination [21,22]. Sensors based on SnO 2, TiO 2 , Fe 2 O 3 , Fe 3 O 4, ZnO, and CeO 2 NPs show sensitive and selective response to natural phenolic antioxidants [23][24][25][26][27][28][29], neuromediators [30][31][32][33], and some pharmaceuticals [34][35][36][37][38]. Electrochemical inertness of this type of NPs is another advantage providing registration of its own redox signal of the target analytes which improves the selectivity of their detection.…”

Section: Linear Dynamicmentioning

confidence: 99%

Cerium(IV) and Iron(III) Oxides Nanoparticles Based Voltammetric Sensor for the Sensitive and Selective Determination of Lipoic Acid

Ziyatdinova

Gimadutdinova

2021

Sensors

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A novel voltammetric sensor based on CeO2·Fe2O3 nanoparticles (NPs) has been developed for the determination of lipoic acid, playing an essential role in aerobic metabolism in the living organism. Sensor surface modification provides a 5.6-fold increase of the lipoic acid oxidation currents and a 20 mV anodic shift of the oxidation potential. The best voltammetric parameters have been obtained for the 0.5 mg mL−1 dispersion of CeO2·Fe2O3 NPs. Scanning electron microscopy (SEM) confirms the presence of spherical NPs of 25–60 nm, and their aggregates evenly distributed on the electrode surface and formed porous coverage. This leads to the 4.4-fold increase of the effective surface area vs. bare glassy carbon electrode (GCE). The sensor shows a significantly higher electron transfer rate. Electrooxidation of lipoic acid on CeO2·Fe2O3 NPs modified GCE is an irreversible diffusion-controlled pH-independent process occurring with the participation of two electrons. The sensor gives a linear response to lipoic acid in the ranges of 0.075–7.5 and 7.5–100 μM with the detection limit of 0.053 μM. The sensor is selective towards lipoic acid in the presence of inorganic ions, ascorbic acid, saccharides, and other S-containing compounds. The sensor developed has been tested on the pharmaceutical dosage forms of lipoic acid.

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Diclofenac determination using CeO2 nanoparticle modified screen-printed electrodes – A study of background correction

Cited by 26 publications

References 57 publications

Screen-Printed Voltammetric Sensors—Tools for Environmental Water Monitoring of Painkillers

Screen-Printed Voltammetric Sensors—Tools for Environmental Water Monitoring of Painkillers

Metal Nanoparticles and Carbon-Based Nanomaterials for Improved Performances of Electrochemical (Bio)Sensors with Biomedical Applications

Cerium(IV) and Iron(III) Oxides Nanoparticles Based Voltammetric Sensor for the Sensitive and Selective Determination of Lipoic Acid

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