scholarly journals Impedimetric Label-Free Immunosensor on Disposable Modified Screen-Printed Electrodes for Ochratoxin A

Biosensors ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 33 ◽  
Author(s):  
Francesca Malvano ◽  
Donatella Albanese ◽  
Alessio Crescitelli ◽  
Roberto Pilloton ◽  
Emanuela Esposito
Keyword(s):  
Ochratoxin A ◽  
Label Free ◽  
Screen Printed Electrodes ◽  
Screen Printed

Designing label-free electrochemical immunosensors for cytochrome c using nanocomposites functionalized screen printed electrodes

2014 ◽  
Vol 54 ◽  
pp. 115-121 ◽  
Author(s):  
Manickam Pandiaraj ◽  
Niroj Kumar Sethy ◽  
Kalpana Bhargava ◽  
Vepa Kameswararao ◽  
Chandran Karunakaran
Keyword(s):  
Cytochrome C ◽  
Label Free ◽  
Screen Printed Electrodes ◽  
Electrochemical Immunosensors ◽  
Screen Printed

scholarly journals Development of a Magnetic Nanoparticles-Based Screen-Printed Electrodes (MNPs-SPEs) Biosensor for the Quantification of Ochratoxin A in Cereal and Feed Samples

Toxins ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 317 ◽  
Author(s):  
Xian Zhang ◽  
Zuohuan Wang ◽  
Hui Xie ◽  
Renjie Sun ◽  
Tong Cao ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Ochratoxin A ◽  
Limit Of Detection ◽  
Screen Printed Electrodes ◽  
Combined Use ◽  
Highly Sensitive ◽  
Relative Standard ◽  
Liquid Chromatography Tandem Mass ◽  
Feed Samples ◽  
Screen Printed

A rapid and sensitive electrochemical biosensor based on magnetic nanoparticles and screen-printed electrodes (MNPs-SPEs sensor) was developed for the detection of ochratoxin A (OTA) in cereal and feed samples. Different types of magnetic nanoparticles-based ELISA (MNPs-ELISA) were optimized, and the signal detection, as well as sensitivity, was enhanced by the combined use of screen-printed electrodes (SPEs). Under the optimized conditions, the calibration curve of the MNPs-SPEs sensor was y = 0.3372x + 0.8324 (R2 = 0.9805). The linear range of detection and the detection limit were 0.01–0.82 ng/mL and 0.007 ng/mL, respectively. In addition, 50% inhibition (IC50) was detectable at 0.10 ng/mL. The limit of detection (LOD) of this MNPs-SPEs sensor in cereal and feed samples was 0.28 μg/kg. The recovery rates in spiked samples were between 78.7% and 113.5%, and the relative standard deviations (RSDs) were 3.6–9.8%, with the coefficient of variation lower than 15%. Parallel analysis of commercial samples (corn, wheat, and feedstuff) showed a good correlation between MNPs-SPEs sensor and liquid chromatography tandem mass spectrometry (LC/MS-MS). This new method provides a rapid, highly sensitive, and less time-consuming method to determine levels of ochratoxin A in cereal and feedstuff samples.

Label free MUC1 aptasensors based on electrodeposition of gold nanoparticles on screen printed electrodes

2013 ◽  
Vol 33 ◽  
pp. 127-130 ◽  
Author(s):  
Anca Florea ◽  
Zahra Taleat ◽  
Cecilia Cristea ◽  
Mohammad Mazloum-Ardakani ◽  
Robert Săndulescu
Keyword(s):  
Gold Nanoparticles ◽  
Label Free ◽  
Screen Printed Electrodes ◽  
Screen Printed

scholarly journals NH2 linker for femtomolar label-free detection with reduced graphene oxide screen-printed electrodes

Carbon ◽  
2021 ◽  
Vol 179 ◽  
pp. 514-522
Author(s):  
Jagriti Sethi ◽  
Ahmed Suhail ◽  
Mina Safarzadeh ◽  
Anas Sattar ◽  
Yinghui Wei ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Label Free ◽  
Screen Printed Electrodes ◽  
Reduced Graphene ◽  
Label Free Detection ◽  
Screen Printed

Sensitive enzyme-biosensor based on screen-printed electrodes for Ochratoxin A

2010 ◽  
Vol 25 (6) ◽  
pp. 1333-1337 ◽  
Author(s):  
M. Asunción Alonso-Lomillo ◽  
Olga Domínguez-Renedo ◽  
Liliana Ferreira-Gonçalves ◽  
M. Julia Arcos-Martínez
Keyword(s):  
Ochratoxin A ◽  
Screen Printed Electrodes ◽  
Enzyme Biosensor ◽  
Screen Printed
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