Different Approaches in Designing Sensitive Tools Based on Nanocomposite Materials for Biological Analytes Detection

Sensitive, stable and robust electrochemical sensors have been designed through modificationof the working electrodes with different complex matrices based on carbon nanomaterials andmetallic nanoparticles. Therefore, screen-printed electrodes were modified with complex matrices ofhybrid nanomaterials using physical deposition or entrapment in polymeric film. [...]

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Electrochemical Sensors Based on Screen-Printed Electrodes: The Use of Phthalocyanine Derivatives for Application in VFA Detection

Biosensors ◽

10.3390/bios6030046 ◽

2016 ◽

Vol 6 (3) ◽

pp. 46 ◽

Cited By ~ 9

Author(s):

Amadou Ndiaye ◽

Sébastien Delile ◽

Jérôme Brunet ◽

Christelle Varenne ◽

Alain Pauly

Keyword(s):

Electrochemical Sensors ◽

Screen Printed Electrodes ◽

Screen Printed

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Paper-Based Screen-Printed Electrodes: A New Generation of Low-Cost Electroanalytical Platforms

Biosensors ◽

10.3390/bios11020051 ◽

2021 ◽

Vol 11 (2) ◽

pp. 51 ◽

Cited By ~ 1

Author(s):

Estefanía Costa-Rama ◽

María Teresa Fernández-Abedul

Keyword(s):

Electrochemical Sensors ◽

Low Cost ◽

Comprehensive Overview ◽

Screen Printed Electrodes ◽

User Friendly ◽

New Generation ◽

Main Substrate ◽

Screen Printed

Screen-printed technology has helped considerably to the development of portable electrochemical sensors since it provides miniaturized but robust and user-friendly electrodes. Moreover, this technology allows to obtain very versatile transducers, not only regarding their design, but also their ease of modification. Therefore, in the last decades, the use of screen-printed electrodes (SPEs) has exponentially increased, with ceramic as the main substrate. However, with the growing interest in the use of cheap and widely available materials as the basis of analytical devices, paper or other low-cost flat materials have become common substrates for SPEs. Thus, in this revision, a comprehensive overview on paper-based SPEs used for analytical proposes is provided. A great variety of designs is reported, together with several examples to illustrate the main applications.

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Disposable gold nanoparticle functionalized and bare screen-printed electrodes for potentiometric determination of trazodone hydrochloride in pure form and pharmaceutical preparations

RSC Advances ◽

10.1039/c8ra00745d ◽

2018 ◽

Vol 8 (21) ◽

pp. 11517-11527 ◽

Cited By ~ 6

Author(s):

Fathy M. Salama ◽

Khalid A. Attia ◽

Ragab A. Said ◽

Ahmed El-Olemy ◽

Ahmed M. Abdel-raoof

Keyword(s):

Gold Nanoparticles ◽

Gold Nanoparticle ◽

Electrochemical Sensors ◽

Pharmaceutical Preparations ◽

Potentiometric Determination ◽

Chemically Modified ◽

Screen Printed Electrodes ◽

Trazodone Hydrochloride ◽

Screen Printed

In the present study, screen-printed electrodes unmodified and chemically modified with gold nanoparticles were used as sensitive electrochemical sensors for the determination of trazodone hydrochloride.

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Electrochemical Sensors Based on the Electropolymerized Natural Phenolic Antioxidants and Their Analytical Application

Sensors ◽

10.3390/s21248385 ◽

2021 ◽

Vol 21 (24) ◽

pp. 8385

Author(s):

Guzel Ziyatdinova ◽

Ekaterina Guss ◽

Elvira Yakupova

Keyword(s):

Carbon Nanomaterials ◽

Electrochemical Sensors ◽

Film Formation ◽

Practical Interest ◽

Polymeric Film ◽

Analytical Application ◽

Phenolic Antioxidants ◽

Film Properties ◽

Operational Characteristics ◽

Wide Range

The design and fabrication of novel electrochemical sensors with high analytical and operational characteristics are one of the sustainable trends in modern analytical chemistry. Polymeric film formation by the electropolymerization of suitable monomers is one of the methods of sensors fabrication. Among a wide range of the substances able to polymerize, the phenolic ones are of theoretical and practical interest. The attention is focused on the sensors based on the electropolymerized natural phenolic antioxidants and their analytical application. The typical electropolymerization reaction schemes are discussed. Phenol electropolymerization leads to insulating coverage formation. Therefore, a combination of electropolymerized natural phenolic antioxidants and carbon nanomaterials as modifiers is of special interest. Carbon nanomaterials provide conductivity and a high working surface area of the electrode, while the polymeric film properties affect the selectivity and sensitivity of the sensor response for the target analyte or the group of structurally related compounds. The possibility of guided changes in the electrochemical response for the improvement of target compounds’ analytical characteristics has appeared. The analytical capabilities of sensors based on electropolymerized natural phenolic antioxidants and their future development in this field are discussed.

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A comparison of the performance of voltammetric aptasensors for glycated haemoglobin on different carbon nanomaterials-modified screen printed electrodes

Materials Science and Engineering C ◽

10.1016/j.msec.2019.04.001 ◽

2019 ◽

Vol 101 ◽

pp. 423-430 ◽

Cited By ~ 4

Author(s):

Shimaa Eissa ◽

Abrar Yousef Almusharraf ◽

Mohammed Zourob

Keyword(s):

Carbon Nanomaterials ◽

Glycated Haemoglobin ◽

Screen Printed Electrodes ◽

Screen Printed

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Screen-printed electrodes as versatile electrochemical sensors and biosensors

2017 IEEE East-West Design & Test Symposium (EWDTS) ◽

10.1109/ewdts.2017.8110130 ◽

2017 ◽

Cited By ~ 1

Author(s):

Stefano Cinti ◽

Danila Moscone ◽

Fabiana Arduini

Keyword(s):

Electrochemical Sensors ◽

Screen Printed Electrodes ◽

Screen Printed

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Fully-printed electrochemical sensors made with flexible screen-printed electrodes modified by roll-to-roll slot-die coating

Biosensors and Bioelectronics ◽

10.1016/j.bios.2020.112428 ◽

2020 ◽

Vol 165 ◽

pp. 112428 ◽

Cited By ~ 3

Author(s):

Giovana Rosso Cagnani ◽

Gisela Ibáñez-Redín ◽

Beatriz Tirich ◽

Débora Gonçalves ◽

Debora T. Balogh ◽

...

Keyword(s):

Electrochemical Sensors ◽

Slot Die Coating ◽

Roll To Roll ◽

Screen Printed Electrodes ◽

Slot Die ◽

Screen Printed

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An Electrochemical Sensor Based on Gold-Nanocluster-Modified Graphene Screen-Printed Electrodes for the Detection of β-Lactoglobulin in Milk

Sensors ◽

10.3390/s20143956 ◽

2020 ◽

Vol 20 (14) ◽

pp. 3956

Author(s):

Jingyi Hong ◽

Yuxian Wang ◽

Liying Zhu ◽

Ling Jiang

Keyword(s):

Electrochemical Sensor ◽

Electrochemical Sensors ◽

Limit Of Detection ◽

Gold Nanoclusters ◽

Enzyme Linked Immunosorbent Assay ◽

Gold Nanocluster ◽

Detection Range ◽

Screen Printed Electrodes ◽

Β Lactoglobulin ◽

Screen Printed

A simple and low-cost electrochemical sensor based on multimodified screen-printed electrodes (SPEs) was successfully synthesized for the sensitive detection of β-lactoglobulin (β-Lg). The surface treatment of SPEs was accomplished by a simple drip coating method using polyethyleneimine (PEI), reduced graphene oxide (rGO), and gold nanoclusters (AuNCs), and the treated SPEs showed excellent electrical conductivity. The modified SPEs were then characterized with UV-Vis, SEM, TEM, and FTIR to analyze the morphology and composition of the AuNCs and the rGO. An anti-β-Lg antibody was then immobilized on the composite material obtained by modifying rGO with PEI and AuNCs (PEI-rGO-AuNCs), leading to the remarkable reduction in conductivity of the SPEs due to the reaction between antigen and antibody. The sensor obtained using this novel approach enabled a limit of detection (LOD) of 0.08 ng/mL and a detection range from 0.01 to 100 ng/mL for β-Lg. Furthermore, pure milk samples from four milk brands were measured using electrochemical sensors, and the results were in excellent agreement with those from commercial enzyme-linked immunosorbent assay (ELISA) methods.

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