| 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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Zhao, Liguo
Loughborough University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2022In silico evaluation of additively manufactured 316L stainless steel stent in a patient-specific coronary arterycitations
- 2022A comparative study of microstructures and nanomechanical properties of additively manufactured and commercial metallic stentscitations
- 2022Development, characterisation, and modelling of processability of nitinol stents using laser powder bed fusioncitations
- 2021Microstructural and mechanical characterization of thin-walled tube manufactured with selective laser melting for stent applicationcitations
- 2020Characterization of biodegradable poly(l‐lactide) tube over accelerated degradationcitations
- 2019Characterisation of additively manufactured metallic stentscitations
- 2019Quantifying the mechanical properties of polymeric tubing and scaffold using atomic force microscopy and nanoindentationcitations
- 2019Mechanical and chemical characterisation of bioresorbable polymeric stent over two-year in vitro degradationcitations
- 20183D DDD modelling of dislocation–precipitate interaction in a nickel-based single crystal superalloy under cyclic deformationcitations
- 2017174 Comparison of the mechanical performance of polymeric and metallic scaffolds – testing and modelling
- 2015Fatigue crack growth in a Nickel-based superalloy at elevated temperature : experimental studies, viscoplasticity modelling and XFEM predictionscitations
- 2015Fatigue crack growth in a nickel-based superalloy at elevated temperature - experimental studies, viscoplasticity modelling and XFEM predictions
- 2011Effects of cyclic stress and temperature on oxidation damage of a nickel-based superalloycitations
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.