A highly sensitive flow injection amperometric glucose biosensor using a gold nanoparticles/polytyramine/Prussian blue modified screen-printed carbon electrode

Khumngern, Suntisak; Jirakunakorn, Ratchaneekorn; Thavarungkul, Panote; Kanatharana, Proespichaya; Numnuam, Apon

doi:10.1016/j.bioelechem.2020.107718

Cited by 22 publications

(12 citation statements)

References 60 publications

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“…The sensitivity is calculated to be 25.74 mA mM –1 cm –2 in a wide linear range of 180 nM to 4.8 μM and 8.75 mA mM –1 cm –2 in 10– 410 μM, along with a LOD of 0.32 nM. The LOD is obtained by the equation LOD = 3 S b /slope, where S b represents the standard deviation calculated by 10 measurements of PBA/MIL-53(NiFe)/NF under a blank signal, and the slope value is obtained from the calibration plot. , These results are far superior to previous MIL-based and PBA-based electrode materials, as shown in Table S1, where previously related reported literature studies have been summarized. − …”

Section: Resultsmentioning

confidence: 91%

In Situ Exfoliation Growth Strategy Realizing Controlled Synthesis of 3D to 2D MOF Materials as High-Performance Electrochemical Biosensors

Jiang,

Chen,

Chai

et al. 2024

Inorg. Chem.

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metal−organic framework (MOF) nanosheets with large surface area, ultrathin thickness, and highly accessible active sites have attracted great research attention. Developing efficient approaches to realize the controllable synthesis of welldefined 2D MOFs with a specific composition and morphology is critical. However, it is still a significant challenge to construct thin and uniform 2D MOF nanosheets and resolve the reagglomeration as well as poor stability of target 2D MOF products. Here, an "in situ exfoliation growth" strategy is proposed, where a one-step synthetic process can realize the successful fabrication of PBA/MIL-53(NiFe)/NF nanosheets on the surface of nickel foam (NF) via in situ conversion and exfoliation growth strategies. The PBA/MIL-53(NiFe)/NF nanosheets combine the individual advantages of MOFs, Prussian blue analogues (PBAs), and 2D materials. As expected, the resulting PBA/MIL-53(NiFe)/NF as a glucose electrode exhibits an extremely high sensitivity of 25.74 mA mM −1 cm −2 in a very wide concentration range of 180 nM to 4.8 μM. The present exciting work provides a simple and effective strategy for the construction of high-performance nonenzymatic glucose electrochemical biosensors.

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Section: Resultsmentioning

confidence: 91%

In Situ Exfoliation Growth Strategy Realizing Controlled Synthesis of 3D to 2D MOF Materials as High-Performance Electrochemical Biosensors

Jiang,

Chen,

Chai

et al. 2024

Inorg. Chem.

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“…• SPCE/PB: 12 SPCE is immersed in a saturated Na 2 CO 3 solution and amperometrically scanned for 300 s at 1.20 V to remove contamination from the electrode surface. SPCE is immersed in a mixture containing 2.0 mM FeCl 3 , 2.0 mM K 3 Fe (CN) 6 , 0.1 M KCl, and 20 mM HCl.…”

Section: Sample Collectionmentioning

confidence: 99%

“…Electrochemical sensors and biosensors are used in various fields, such as health, environmental monitoring, and food analysis, due to their high sensitivity, rapid response times, and cost-effectiveness. − Enzymatic biosensors rely on enzymes as sensitive components for biomolecular recognition . Amperometry is a common technique that measures changes in current under a fixed potential, which is directly proportional to analyte concentration. , Enzymatic biosensors typically exhibit excellent selectivity in practical applications due to the natural specificity of enzymes.…”

Section: Introductionmentioning

confidence: 99%

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Development of a New Amperometric Biosensor for Measurement of Plasma Galactose Levels

Canbay,

Sezer,

Canda

et al. 2024

ACS Omega

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Galactosemia is an inherited disease that occurs as a result of insufficient or no synthesis of some enzymes (GALT, GALK, and GALE) in galactose metabolism. Failure to make an early diagnosis, especially in newborns, can lead to severe clinical and even fatal consequences. The aim of this study is to develop a biosensor for measuring free galactose in plasma. The immobilization components of the developed free galactose biosensor are screen printed carbon electrode (SCPE), Prussian blue (PB), chitosan (CHIT), Nafion (NAF), gold nanoparticle (GNP), and galactose oxidase (GaOX). The CHIT/GaOX/NAF-GNP/ GaOX/CHIT-GNP/SCPE-PB electrode showed a sensitive amperometric response to detect galactose. While the surface characterization of the biosensor was performed with cyclic voltammetry and scanning electron microscopy, the optimization and performance characterizations were made by applying an amperometry technique. The amperometric operating potential for the free galactose biosensor was determined as −0.05 V. The linear detection range for the free galactose biosensor is between 0.025 and 10 mM. This range includes galactose levels in plasma of both healthy and patients. The percent coefficient of variation values calculated for intraday and interday repeatability of the developed biosensor are below 10%. The practical use of the biosensor, for which optimization and characterization studies were carried out, was tested in 10 healthy 11 patients with galactosemia, and the results were compared with the colorimetric method. In conclusion, the unique analytical properties and effortless preparation of the new galactose biosensor developed in this study make them serious candidates for point-of-care diagnostic testing.

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“… 112 As a result, patient-friendly, minimally invasive, or non-invasive fluorescence detection technologies have attracted interest, and some have made significant advances when combined with nanotechnology. The majority of these nanobiosensors are enzymatic or non-enzymatic and are based on the chemisorption of highly active glucose oxidase (GOx) onto AuNPs; 113 or by the chemical coating of different active components into carbon-based electrodes, such as high-purity TiO 2 , 114 silver (Ag) 115 or nickel (Ni) 116 in the nanoscale, among others.…”

Section: Current Development Of Selenium Nanomaterials In Biosensing ...mentioning

confidence: 99%

Selenium-based nanomaterials for biosensing applications

et al. 2022

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A highly sensitive flow injection amperometric glucose biosensor using a gold nanoparticles/polytyramine/Prussian blue modified screen-printed carbon electrode

Cited by 22 publications

References 60 publications

In Situ Exfoliation Growth Strategy Realizing Controlled Synthesis of 3D to 2D MOF Materials as High-Performance Electrochemical Biosensors

In Situ Exfoliation Growth Strategy Realizing Controlled Synthesis of 3D to 2D MOF Materials as High-Performance Electrochemical Biosensors

Development of a New Amperometric Biosensor for Measurement of Plasma Galactose Levels

Selenium-based nanomaterials for biosensing applications

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