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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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Prabowo, Briliant Adhi
Queen's University Belfast
in Cooperation with on an Cooperation-Score of 37%
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Publications (4/4 displayed)
- 2024Durable nonenzymatic electrochemical sensing using silver decorated multi-walled carbon nanotubes for uric acid detectioncitations
- 2022Labeling on a Chip of Cellular Fibronectin and Matrix Metallopeptidase-9 in Human Serumcitations
- 2022Versatile and Low-Cost Fabrication of Modular Lock-and-Key Microfluidics for Integrated Connector Mixer Using a Stereolithography 3D Printingcitations
- 2019Etched and non-etched polystyrene nanoballs coated with AuNPs on Indium Tin Oxide (ITO) electrode as H2O2 sensor
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document
Etched and non-etched polystyrene nanoballs coated with AuNPs on Indium Tin Oxide (ITO) electrode as H2O2 sensor
Abstract
<p>In electro-analytical applications, metallic nanoparticles (NPs) facilitate roughening of the conductive sensing interface and electrochemical signal amplification as a result of some metal NPs catalytic properties. In this study, natural lithography, termed as nanospheres lithography (NSL), was used to fabricate 5 nm thick AuNPs from thermal evaporation system on an Indium Tin Oxide (ITO) substrate patterned with polystyrene (PS) nanoballs (d=100 nm). The electrode substrate was characterized by field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), and cyclic voltammetry (CV) and utilized as a sensor to measure H<sub>2</sub>O<sub>2</sub>. More prominent features were shown by the etched PS on the fabricated electrode that left AuNPs honeycomb-like pattern than the non-etched one. Higher oxidation peak was demonstrated by the etched electrode than non-etched electrode as recorded with cyclic voltammogram, as well as in H<sub>2</sub>O<sub>2</sub> measurement. CV outcomes denoted higher surface area at the substrate with etched PS and resulted in a lower limit of detection (LOD) of H<sub>2</sub>O<sub>2</sub> than the non-etched substrates.</p>