Electrochemical (Bio)Sensors for Pesticides Detection Using Screen-Printed Electrodes

Pérez-Fernández, Beatriz; Costa-Garcı́a, Agustı́n; Escosura‐Muñiz, Alfredo de la

doi:10.3390/bios10040032

Cited by 110 publications

(50 citation statements)

References 192 publications

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“…To address the need for cost-effective enzyme-based biosensors without comprising on sensitivity or selectivity, Arduini et al, in 2010, was one of the first to pioneer the use of conductive nanostructured carbon black (CB) as an alternative to graphene and carbon nanotubes for the modification of screen-printed electrodes (SPEs) [ 26 ]. SPEs satisfy the need for highly reproducible and cost-effective substrates for electrochemical measurements, with the additional advantages of low cost of production, flexibility in design, small size and ease of electrode surface modification [ 27 ]. Moreover, CB is a commercially available by-product obtained by thermal decomposition of heavy petroleum residue [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Facile and Low-Cost SPE Modification Towards Ultra-Sensitive Organophosphorus and Carbamate Pesticide Detection in Olive Oil

et al. 2020

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Despite the fact that a considerable amount of effort has been invested in the development of biosensors for the detection of pesticides, there is still a lack of a simple and low-cost platform that can reliably and sensitively detect their presence in real samples. Herein, an enzyme-based biosensor for the determination of both carbamate and organophosphorus pesticides is presented that is based on acetylcholinesterase (AChE) immobilized on commercially available screen-printed carbon electrodes (SPEs) modified with carbon black (CB), as a means to enhance their conductivity. Most interestingly, two different methodologies to deposit the enzyme onto the sensor surfaces were followed; strikingly different results were obtained depending on the family of pesticides under investigation. Furthermore, and towards the uniform application of the functionalization layer onto the SPEs’ surfaces, the laser induced forward transfer (LIFT) technique was employed in conjunction with CB functionalization, which allowed a considerable improvement of the sensor’s performance. Under the optimized conditions, the fabricated sensors can effectively detect carbofuran in a linear range from 1.1 × 10−9 to 2.3 × 10−8 mol/L, with a limit of detection equal to 0.6 × 10−9 mol/L and chlorpyrifos in a linear range from 0.7 × 10−9 up to 1.4 × 10−8 mol/L and a limit of detection 0.4 × 10−9 mol/L in buffer. The developed biosensor was also interrogated with olive oil samples, and was able to detect both pesticides at concentrations below 10 ppb, which is the maximum residue limit permitted by the European Food Safety Authority.

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Section: Introductionmentioning

confidence: 99%

Facile and Low-Cost SPE Modification Towards Ultra-Sensitive Organophosphorus and Carbamate Pesticide Detection in Olive Oil

et al. 2020

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“…Graphene based sensors offer an option for the sensitive detection of agro-hazardous pesticide residues in food [677][678][679][680], and to control the quality of the water and air to avoid dangerous effects to humans. Electrochemical sensors play also a significant role in the industry and in everyday life to control toxic substances.…”

Section: Figure 38mentioning

confidence: 99%

Carbon Nanomaterials: Synthesis, Functionalization and Sensing Applications

Speranza

2021

Nanomaterials

211

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Recent advances in nanomaterial design and synthesis has resulted in robust sensing systems that display superior analytical performance. The use of nanomaterials within sensors has accelerated new routes and opportunities for the detection of analytes or target molecules. Among others, carbon-based sensors have reported biocompatibility, better sensitivity, better selectivity and lower limits of detection to reveal a wide range of organic and inorganic molecules. Carbon nanomaterials are among the most extensively studied materials because of their unique properties spanning from the high specific surface area, high carrier mobility, high electrical conductivity, flexibility, and optical transparency fostering their use in sensing applications. In this paper, a comprehensive review has been made to cover recent developments in the field of carbon-based nanomaterials for sensing applications. The review describes nanomaterials like fullerenes, carbon onions, carbon quantum dots, nanodiamonds, carbon nanotubes, and graphene. Synthesis of these nanostructures has been discussed along with their functionalization methods. The recent application of all these nanomaterials in sensing applications has been highlighted for the principal applicative field and the future prospects and possibilities have been outlined.

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“…In this knowledgeable society, it is obvious the interest in developing low-cost, miniaturized and easy-to-use analytical devices that provide on-site quantitative information in a fast and easy way. The high potential of these devices makes them useful in very assorted fields: from clinical and biomedical applications [ 1 , 2 , 3 , 4 , 5 ] to food analysis and quality control [ 6 , 7 , 8 ], as well as environmental monitoring [ 9 , 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

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

Costa‐Rama

Fernández‐Abedul

2021

Biosensors

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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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Electrochemical (Bio)Sensors for Pesticides Detection Using Screen-Printed Electrodes

Cited by 110 publications

References 192 publications

Facile and Low-Cost SPE Modification Towards Ultra-Sensitive Organophosphorus and Carbamate Pesticide Detection in Olive Oil

Facile and Low-Cost SPE Modification Towards Ultra-Sensitive Organophosphorus and Carbamate Pesticide Detection in Olive Oil

Carbon Nanomaterials: Synthesis, Functionalization and Sensing Applications

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

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