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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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Švorčík, Václav
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024ENHANCED SENSOR TECHNOLOGIES UTILIZING POROUS SILICON FOR PRECISE DETECTION OF PERFLUOROOCTANOIC ACID AND BEYOND
- 2023Beyond the Platinum Era─Scalable Preparation and Electrochemical Activation of TaS2 Flakescitations
- 2023Biopolymer Honeycomb Microstructures: A Reviewcitations
- 2023Exploring morphological diversity of Q-carbon structures through laser energy density variationcitations
- 2023Weak Bonds, Strong Effectscitations
- 2022Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymercitations
- 2022The multi-energetic Au ion implantation of graphene oxide and polymerscitations
- 2022KrF Laser and Plasma Exposure of PDMS–Carbon Composite and Its Antibacterial Propertiescitations
- 2022Mammalian Cell Interaction with Periodic Surface Nanostructurescitations
- 2022Carbon Transformation Induced by High Energy Excimer Treatmentcitations
- 2022Plasma treatment of PTFE at elevated temperature: The effect of surface properties on its biological performancecitations
- 2020Cellulose acetate honeycomb-like pattern created by improved phase separationcitations
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document
ENHANCED SENSOR TECHNOLOGIES UTILIZING POROUS SILICON FOR PRECISE DETECTION OF PERFLUOROOCTANOIC ACID AND BEYOND
Abstract
Single-crystalline silicon with a porous structure at the micrometer to nanometer level is currently used as a sensor for electrochemical or optical-based detection because of its exceptional optical, surface, and electronic properties. However, further research into this structured nanomaterial is ongoing and points to its potential use in other detection and sensor fields. This work focuses on the preparation and application of porous silicon sensor substrates for the dual-mode detection of perfluorooctanoic acid (PFOA). PFOA is captivating because it is a known contaminant and a substance that the human body cannot naturally excrete, which over time leads to the accumulation of this compound in the blood and organs and can cause health complications. In the first step of the realization of this work, a number of samples with different morphologies and sizes of the porous structure were prepared and the best ones were subsequently used. Then, the porous Si (pSi) surface was coated with a thin layer of gold by a vacuum sputtering method to increase the surface conductivity and introduce plasmon-active properties. The sample surface was modified with amino-containing organic moieties to ensure high surface affinity towards PFOA molecules (and their selective capture). The successful modification of the surface morphology, chemistry, and properties was verified by scanning electron microscopy (SEM) and UV-Vis. PFOA detection was subsequently performed in two modes, using electrochemical impedance spectroscopy (EIS) and surface-enhanced Raman spectroscopy (SERS) approaches. The EIS and SERS experiments showed that the sensor is reliable for determination of the PFOA in water at a significant concentration. In conclusion, the successful experiments in the detection of PFOA give us hope that the developed sensor could be used for the detection of other hazardous substances with similar size, structure, and functional groups. © 2024 NANOCON Conference Proceedings - International Conference on Nanomaterials. All rights reserved.