| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Krishnamurthy, Professor Satheesh
University of Surrey
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024A comprehensive review on realization of self-cleaning surfaces by additive manufacturingcitations
- 2022Influence of Nanostructures in Perovskite Solar Cellscitations
- 2021Material dependent and temperature driven adsorption switching (p- to n- type) using CNT/ZnO composite-based chemiresistive methanol gas sensorcitations
- 2021Tin oxide for optoelectronic, photovoltaic and energy storage devices: a reviewcitations
- 2021Removal and Degradation of Mixed Dye Pollutants by Integrated Adsorption-Photocatalysis Technique Using 2-D MoS<sub>2</sub>/TiO<sub>2</sub> Nanocompositecitations
- 2020Solution Processed Pure Sulfide CZCTS Solar Cells with Efficiency 10.8% using Ultra-Thin CuO Intermediate Layercitations
- 2020Strength-ductility trade-off via SiC nanoparticle dispersion in A356 aluminium matrixcitations
- 2020Electro-deposited nano-webbed structures based on polyaniline/multi walled carbon nanotubes for enzymatic detection of organophosphatescitations
- 2019Continuous Hydrothermal Synthesis of Metal Germanates (M<sub>2</sub>GeO<sub>4</sub> ; M = Co, Mn, Zn) for High Capacity Negative Electrodes in Li‐ion Batteriescitations
- 2019Electrochemical micro analytical device interfaced with portable potentiostat for rapid detection of chlorpyrifos using acetylcholinesterase conjugated metal organic framework using Internet of thingscitations
- 2019Effects of Precursor Concentration in Solvent and Nanomaterials Room Temperature Aging on the Growth Morphology and Surface Characteristics of Ni–NiO Nanocatalysts Produced by Dendrites Combustion during SCScitations
- 2018Synthesis of MoS<sub>2</sub>-TiO<sub>2</sub> nanocomposite for enhanced photocatalytic and photoelectrochemical performance under visible light irradiationcitations
- 2017Tuning the properties of a black TiO<sub>2</sub>-Ag visible light photocatalyst produced by rapid one-pot chemical reductioncitations
- 2017Mediator-free interaction of glucose oxidase, as model enzyme for immobilization, with Al-doped and undoped ZnO thin films laser-deposited on polycarbonate supportscitations
- 2016Influence of Nanostructures in Perovskite Solar Cellscitations
- 2016Synthesis and characterisation of polyaniline (PAni) membranes for fuel cellcitations
- 2014Liquid phase pulsed laser ablation: a route to fabricate different carbon nanostructurescitations
- 2013Morphology-directed synthesis of ZnO nanostructures and their antibacterial activitycitations
- 2012Structural characterization of ZnO thin films grown on various substrates by pulsed laser depositioncitations
- 2011Resonant soft X-ray emission and X-ray absorption studies on Ga<sub>1-x</sub>Mn<sub>x</sub>N grown by pulsed laser depositioncitations
- 2010Transparent ultrathin conducting carbon filmscitations
- 2009Growth and characterisation of Al <sub>1-x</sub>Cr <sub>x</sub>N thin films by RF plasma assisted pulsed laser depositioncitations
- 2008High-yield production of graphene by liquid-phase exfoliation of graphitecitations
- 2008Growth of carbon nanotubes on Si substrate using Fe catalyst produced by pulsed laser deposition
Places of action
| Organizations | Location | People |
|---|
article
Mediator-free interaction of glucose oxidase, as model enzyme for immobilization, with Al-doped and undoped ZnO thin films laser-deposited on polycarbonate supports
Abstract
Al doped and undoped ZnO thin films were deposited by pulsed-laser deposition on polycarbonate sheets. The films were characterized by optical transmission, Hall effect measurement, XRD and SEM. Optical transmission and surface reflectometry studies showed good transparency with thicknesses ∼100 nm and surface roughness of 10 nm. Hall effect measurements showed that the sheet carrier concentration was −1.44 × 10<sup>15</sup> cm<sup>−2</sup> for AZO and −6 × 10<sup>14</sup> cm<sup>−2</sup> for ZnO. The films were then modified by drop-casting glucose oxidase (GOx) without the use of any mediators. Higher protein concentration was observed on ZnO as compared to AZO with higher specific activity for ZnO (0.042 U mg<sup>−1</sup>) compared to AZO (0.032 U mg<sup>−1</sup>), and was in agreement with cyclic voltemmetry (CV). X-ray photoelectron spectroscopy (XPS) suggested that the protein was bound by dipole interactions between AZO lattice oxygen and the amino group of the enzyme. Chronoamperometry showed sensitivity of 5.5 μA mM<sup>−1</sup> cm<sup>−2</sup> towards glucose for GOx/AZO and 2.2 μA mM<sup>−1</sup> cm<sup>−2</sup> for GOx/ZnO. The limit of detection (LoD) was 167 μM of glucose for GOx/AZO, as compared to 360 μM for GOx/ZnO. The linearity was 0.28–28 mM for GOx/AZO whereas it was 0.6–28 mM for GOx/ZnO with a response time of 10s. Possibly due to higher enzyme loading, the decrease of impedance in presence of glucose was larger for GOx/ZnO as compared to GOx/AZO in electrochemical impedance spectroscopy (EIS). Analyses with clinical blood serum samples showed that the systems had good reproducibility and accuracy. The characteristics of novel ZnO and AZO thin films with GOx as a model enzyme, should prove useful for the future fabrication of inexpensive, highly sensitive, disposable electrochemical biosensors for high throughput diagnostics.