| 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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Liu, Yang
Imperial College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Lead‐free halide perovskite materials and optoelectronic devices: progress and prospectivecitations
- 2024Characterization of AlGaAs/GeSn heterojunction band alignment via X-ray photoelectron spectroscopy
- 2023Exploring the hydride-slip interaction in zirconium alloyscitations
- 2023Demonstration of a monocrystalline GaAs-$β$-Ga$_2$O$_3$ p-n heterojunction
- 2023Lead-Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospectivecitations
- 2023Open-source environmental data as an alternative to snail surveys to assess schistosomiasis risk in areas approaching elimination
- 2023Lead‐Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospectivecitations
- 2022Photon Drag Currents and Terahertz Generation in α-Sn/Ge Quantum Wellscitations
- 2022Simulation of crystal plasticity in irradiated metals: a case study on Zircaloy-4citations
- 2021Characterisation of microstructural creep, strain rate and temperature sensitivity and computational crystal plasticity in Zircaloy-4citations
- 2019Quantifying the mechanical properties of polymeric tubing and scaffold using atomic force microscopy and nanoindentationcitations
- 2019Texture and phase variation of ALD PbTiO3 films crystallized by rapid thermal annealcitations
- 2019Screening Approach for the Discovery of New Hybrid Perovskites with Efficient Photoemissioncitations
- 2019Mechanical and chemical characterisation of bioresorbable polymeric stent over two-year in vitro degradationcitations
- 2018Cellular response to cyclic compression of tissue engineered intervertebral disk constructs composed of electrospun polycaprolactonecitations
- 2018Enhanced Water Barrier Properties of Surfactant-Free Polymer Films Obtained by MacroRAFT-Mediated Emulsion Polymerizationcitations
- 2017Prediction of linear and non-linear behavior of 3D woven composite using mesoscopic voxel models reconstructed from X-ray micro-tomographycitations
- 2017174 Comparison of the mechanical performance of polymeric and metallic scaffolds – testing and modelling
- 2017Numerical Modelling of Effects of Biphasic Layers of Corrosion Products to the Degradation of Magnesium Metal In Vitrocitations
- 2017Bandgap Control via Structural and Chemical Tuning of Transition Metal Perovskite Chalcogenidescitations
- 2017Compact Brillouin devices through hybrid integration on siliconcitations
- 2017A numerical approach to reconstruct mesoscopic yarn section of textile composites based upon X-ray micro-tomography
- 2016Effects of Annealing on GaAs/GaAsSbN/GaAs Core-Multi-shell Nanowires
- 2015Film thickness of vertical upward co-current adiabatic flow in pipescitations
- 2014Bifunctional organic/inorganic nanocomposites for energy harvesting, actuation and magnetic sensing applicationscitations
Places of action
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article
Quantifying the mechanical properties of polymeric tubing and scaffold using atomic force microscopy and nanoindentation
Abstract
Measurement of mechanical parameters of polymeric scaffolds presents a significant challenge due to their intricate shape and small characteristics dimensions of their elements – around 100μm. In this study, mechanical properties of polymeric tubing and scaffold, made of biodegradable poly (l-lactic) acid (PLLA), were characterised using atomic force microscopy (AFM) and nanoindentation, complemented with tensile testing. AFM was employed to assess the properties of the tube and scaffold locally, whilst nanoindentation produced results with a dependency on the depth of indentation. As a result, the AFM-measured elastic modulus differs from the nanoindentation data due to a substantial difference in indentation depth between the two methods. With AFM, a modulus between 2 and 2.5 GPa was measured, while a wide range was obtained from nanoindentation on both the tube and scaffold, depending on the indentation scale. Changes in the elastic modulus with in-vitro degradation and ageing were observed over the one-year period. To complement the indentation measurements, tensile testing was used to study the structural behaviour of the tube, demonstrating the yielding, hardening and fracture properties of the material.