Development of electrochemical aptasensor based on gold nanoparticles and electrospun carbon nanofibers for the detection of aflatoxin M1 in milk

Rahmani, Hamid Reza; Adabi, Mohsen; Bagheri, Kamran Pooshang; Karim, G

doi:10.1007/s11694-020-00780-y

Cited by 10 publications

(2 citation statements)

References 24 publications

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“…In recent decades, the biosensor, due to its unique advantages such as low cost, portability, rapid response, and simple operation, has been widely used in mycotoxins detection. Among various biosensors, the electrochemical biosensor has become an attractive tool for mycotoxin assay because of its high sensitivity, simple equipment, and easy miniaturization [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Design of a new electrochemical aptasensor based on screen printed carbon electrode modified with gold nanoparticles for the detection of fumonisin B1 in maize flour

et al. 2023

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A new aptasensor for detecting fumonisin B1 (FB1) in the maize samples was developed based on DNA- aptamer recognition and electrochemical technique. A thiol-modified single-stranded DNA (ss-HSDNA) was immobilized on a screen printed carbon electrode (SPCE) electrodeposited by gold nanoparticles (AuNPs). The morphology and structure of SPCE and AuNPs/SPCE were evaluated via scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). The SEM results demonstrated that the SPCE had a flat sheet-like structure, and the AuNPs were homogeneously electrodeposited on the SPCE. Cyclic voltammetry (CV) experiments in the [Fe(CN)6]− 3/− 4 solution were conducted to investigate each step of electrode modification as well as aptasensor performance. Aptamer-FB1 interaction prevented the electron transfer permitting the determination of FB1 in the range of 0.5–500 ng/mL with a low detection limit (0.14 ng/mL). The designed aptasensor was also shown high selectivity, acceptable repeatability and reproducibility, good long-term stability, and excellent recovery. Furthermore, there was a strong correlation between the findings achieved via the designed aptasensor and high performance liquid chromatography (HPLC). Therefore, a simple construction process and satisfactory electrochemical performance of the proposed aptasensor have a great potential for the detection of FB1 in maize samples.

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Section: Introductionmentioning

confidence: 99%

Design of a new electrochemical aptasensor based on screen printed carbon electrode modified with gold nanoparticles for the detection of fumonisin B1 in maize flour

et al. 2023

Self Cite

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show abstract

“…In recent decades, the biosensor due to its unique advantages such as low cost, portability, rapid response and simple operation has been widely used in mycotoxins detection. Among various biosensors, the electrochemical biosensor has become an attractive tool for mycotoxin assay because of high sensitivity, simple equipments and easy miniaturization [12,13].…”

Section: Introductionmentioning

confidence: 99%

Design of a new electrochemical aptasensor based on screen printed carbon electrode modified with gold nanoparticles for the detection of fumonisin B1 in maize flour

Naghshbandi

Adabi

Bagheri

et al. 2022

Preprint

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A new aptasensor for the detection of fumonisin B1 (FB1) in the maize samples was developed based on DNA- aptamer recognition and electrochemical technique. A thiol-modified single stranded DNA (ss-HSDNA) was immobilized on screen printed carbon electrode (SPCE) electrodeposited by gold nanoparticles (AuNPs). The morphology and structure of SPCE and AuNPs/SPCE were evaluated via scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). The SEM results demonstrated that the SPCE had a flat sheet-like structure and the AuNPs were homogeneously electrodeposited on the SPCE. Cyclic voltammetry (CV) experiments in the [Fe(CN)6]-3/-4 solution were conducted to investigate each step of electrode modification as well as aptasensor performance. Aptamer-FB1 interaction prevented the electron transfer permitting the determination of FB1 in the range of 0.5-500 ng/L with a low detection limit (0.2 ng/mL). The designed aptasensor was also showed high selectivity, acceptable repeatability and reproducibility, good long-term stability and excellent recovery. Furthermore, there was a strong correlation between the findings achieved via the designed aptasensor and HPLC. Therefore, a simple construction process and fine electrochemical performance of the proposed aptasensor have a great potential for the detection of FB1 in maize samples.

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Nanoarchitectonics of electrochemical aptasensor based on electrospun carbon nanofibers and gold nanoparticles for tetracycline detection in chicken ham

Mohammadi

Bagheri²,

Nadushan³

et al. 2023

Appl. Phys. A

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Development of electrochemical aptasensor based on gold nanoparticles and electrospun carbon nanofibers for the detection of aflatoxin M1 in milk

Cited by 10 publications

References 24 publications

Design of a new electrochemical aptasensor based on screen printed carbon electrode modified with gold nanoparticles for the detection of fumonisin B1 in maize flour

Design of a new electrochemical aptasensor based on screen printed carbon electrode modified with gold nanoparticles for the detection of fumonisin B1 in maize flour

Design of a new electrochemical aptasensor based on screen printed carbon electrode modified with gold nanoparticles for the detection of fumonisin B1 in maize flour

Nanoarchitectonics of electrochemical aptasensor based on electrospun carbon nanofibers and gold nanoparticles for tetracycline detection in chicken ham

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