| 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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Li, Yang
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Spin injection in graphene using ferromagnetic indium-cobalt van der Waals contacts
- 2024Sensitivity of G0 and stress-strain relation of geomaterials to grain shape and surface roughness
- 2024Triple-junction perovskite–perovskite–silicon solar cells with power conversion efficiency of 24.4%
- 2023Study of surface damage in silicon by irradiation with focused rubidium ions using a cold-atom ion sourcecitations
- 2023Near-surface characterization using Distributed Acoustic Sensing in an urban area: Granada, Spain
- 2023Bright circularly polarized photoluminescence in chiral layered hybrid lead-halide perovskitescitations
- 2023Evaporated Self‐Assembled Monolayer Hole Transport Layers: Lossless Interfaces in <i>p‐i‐n</i> Perovskite Solar Cellscitations
- 2023Silver contamination and its toxicity and risk management in terrestrial and aquatic ecosystemscitations
- 2022Fiber orientation dependence of tribological behavior of short carbon fiber reinforced ceramic matrix compositescitations
- 2022Elastic and inelastic mean free paths for scattering of fast electrons in thin-film oxidescitations
- 2021Premelting and formation of ice due to Casimir-Lifshitz interactions: Impact of improved parameterization for materials ; ENEngelskEnglishPremelting and formation of ice due to Casimir-Lifshitz interactions: Impact of improved parameterization for materialscitations
- 2021Exciton versus free carrier emission: Implications for photoluminescence efficiency and amplified spontaneous emission thresholds in quasi-2D and 3D perovskitescitations
- 2020Rapid and cytocompatible cell-laden silk hydrogel formation via riboflavin-mediated crosslinking
- 2020Rapid and cytocompatible cell-laden silk hydrogel formation via riboflavin-mediated crosslinkingcitations
- 2019Electrochemical metallization ReRAMs (ECM) - Experiments and modellingcitations
- 2019Volumetric Bioprinting of Complex Living-Tissue Constructs within Secondscitations
- 2018Magnetically activated microcapsules as controlled release carriers for a liquid PDMS cross-linkercitations
- 2016Transient phases during fast crystallization of organic thin films from solutioncitations
- 2014Design of anodic aluminum oxide rear surface plasmonic heterostructures for light trapping in thin silicon solar cellscitations
- 2012Characterization of epitaxial GaAs MOS capacitors using atomic layer-deposited TiO2/Al2O3gate stack: study of Ge auto-doping and p-type Zn doping
- 2009Lanthanide N,N '-piperazine-bis(methylenephosphonates) (Ln = La, Ce, Nd) that display flexible frameworks, reversible hydration and cation exchangecitations
- 2007Confinement of Thermoresponsive Hydrogels in Nanostructured Porous Silicon Dioxide Templatescitations
- 2007Confinement of Thermoresponsive Hydrogels in Nanostructured Porous Silicon Dioxide Templatescitations
- 2005Synthesis and characterization of CdS quantum dots in polystyrene microbeadscitations
Places of action
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article
Confinement of Thermoresponsive Hydrogels in Nanostructured Porous Silicon Dioxide Templates
Abstract
A thermoresponsive hydrogel, poly(N-isopropylacrylamide) (poly(NIPAM)), is synthesized in-situ within an oxidized porous Si template, and the nanocomposite material is characterized. Infiltration of hydrogel into the interconnecting nanometer-scale pores of the porous SiO2 host is confirmed by scanning electron microscopy. The optical reflectivity spectrum of the nanocomposite hybrid displays Fabry-Pérot fringes characteristic of thin film interference, enabling direct, real-time observation of the volume phase transition of the confined poly(NIPAM) hydrogel. Reversible optical reflectivity changes are observed to correlate with the temperature-dependent volume phase transition of the hydrogel, providing a new means of studying nanometer-scale confinement of responsive hydrogels. The nano-confined hydrogel displays a swelling and shrinking response to changes in temperature that is significantly faster than for the bulk hydrogel. The porosity and pore size of the SiO2 template, which are precisely controlled by the electrochemical synthesis parameters, strongly influence the extent and rate of changes in the reflectivity spectrum of the nano-composite. The observed optical response is ascribed to changes in both the mechanical and the dielectric properties of the nano-composite.