| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Lieberzeit, Peter
University of Vienna
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Novel Approach for the Immobilization of Cellobiose Dehydrogenase in PEDOT:PSS Conductive Layer on Planar Gold Electrodescitations
- 2023Bioanalytische Sensoren auf der Basis von Wärmeleitungeffektencitations
- 2023L-Ascorbic Acid Treatment of Electrochemical Graphene Nanosheets: Reduction Optimization and Application for De-Icing, Water Uptake Prevention, and Corrosion Resistancecitations
- 2022Development of conductive molecularly imprinted polymers (cMIPs) for limonene to improve and interconnect QCM and chemiresistor sensingcitations
- 2021Biomimetic Sensors to Detect Bioanalytes in Real-Life Samples Using Molecularly Imprinted Polymerscitations
- 2021Imprinted polymer and Cu2O-graphene oxide nanocomposite for the detection of disease biomarkerscitations
- 2021Novel dual-sensor for creatinine and 8-hydroxy-2 '-deoxyguanosine using carbon-paste electrode modified with molecularly imprinted polymers and multiple-pulse amperometrycitations
- 2020Molecularly imprinted polymeric coatings for sensitive and selective gravimetric detection of artemethercitations
- 2020Design of heterostructured hybrids comprising ultrathin 2D bismuth tungstate nanosheets reinforced by chloramphenicol imprinted polymers used as biomimetic interfaces for mass-sensitive detectioncitations
- 2020Novel amino-containing molecularly-imprinted polymer coating on magnetite-gold core for sensitive and selective carbofuran detection in foodcitations
- 2019Highly sensitive and selective electrochemical paper-based device using a graphite screen-printed electrode modified with molecularly imprinted polymers coated Fe3O4@Au@SiO2 for serotonin determinationcitations
- 2018Investigating nanohybrid material based on 3D CNTs@Cu nanoparticle composite and imprinted polymer for highly selective detection of chloramphenicolcitations
- 2017A novel method for dengue virus detection and antibody screening using a graphene-polymer based electrochemical biosensorcitations
- 2016A Self-Organisation Synthesis Approach for Bacteria Molecularly Imprinted Polymerscitations
- 2014Molecularly imprinted polymer-Ag2S nanoparticle composites for sensing volatile organicscitations
- 2009Generating Bio-Analogous Recognition of Artificial Materials - Sensors and Electronic Noses for Odours
- 2007Printing materials in micro- and nano-scale: Systems for process control
- 2003Chemical sensors - From molecules, complex mixtures to cells - Supramolecular imprinting strategiescitations
Places of action
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article
Novel amino-containing molecularly-imprinted polymer coating on magnetite-gold core for sensitive and selective carbofuran detection in food
Abstract
We report a novel and facile method for synthesis of amino-containing molecularly-imprinted coatings on magnetite-gold nanoparticle cores (Fe3O4@Au-MIP-NH2) for constructing robust and sensitive carbofuran sensors. Fe3O4@Au-MIP-NH2 nanoparticles were synthesized by successive self-assembly of organic thiols, 11-mercaptoundecanoic acid, on magnetite-gold core surfaces, followed by coupling with an amino-containing molecularly-imprinted polymer (MIP-NH2) shells. The MIP-NH2 nanocomposite was synthesized via two polymerization steps to form carbofuran imprinted pre-polymer nanoparticles and then terminating the surface with amino-containing polymer. The synthesized pre-polymer nanoparticles possess a large surface-to-volume ratio. This approach allows for increased numbers of carbofuran template molecules to attach to the polymer surface to form larger recognition sites. We constructed the highly sensitive and selective carbofuran amperometric sensor by coating the surface of a glassy carbon electrode with Fe3O4@Au-MIP-NH2 coupled with a simple flow-injection system. Morphological and structural characterization reveals that the coupling of the MIP-NH2 on the Fe3O4@Au core surface significantly increases the recognition surface area and electron transfer efficiency to provide improved selectivity and sensitivity. The MIP-NH2 modified electrode shows substantially enhanced carbofuran current response, which is by a factor of about twenty times that of the non-imprinted polymer electrode. The modified electrode provides fast response with good selectivity when applied to carbofuran detection by amperometry. The carbofuran oxidation-current signal appears at + 0.50 V vs Ag/AgCl, using 0.1 M phosphate buffer (pH 7.0) as the carrier solution. The designed Fe3O4@Au-MIP-NH2 sensor provides a linear response over the range 0.01-100 mu M (r(2) = 0.9967) with a low detection limit of 1.7 nM. The intraday and interday precision (%RSD) of 5 mu M CBF are 1.4% and 1.8%, respectively. We demonstrate the successful application of the sensor to the detection of CBF in fruit and vegetable samples.