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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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Bowen, James
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (51/51 displayed)
- 2024Manufacture and calibration of high stiffness AFM cantilevers
- 2021Plug and play nanoparticles: functionalization of octa-alkyne silsesquioxane nanocages
- 2021Continuous hydrothermal flow synthesis of S-functionalised carbon quantum dots for enhanced oil recoverycitations
- 2021Manufacture and calibration of high stiffness AFM cantilevers
- 2021Nanoscale tribology over large displacements
- 2020Manufacture and calibration of high stiffness AFM cantilevers
- 2020A Microwave Heating Demonstrator (MHD) payload concept for lunar construction and volatiles extraction
- 2019Precise generation of selective surface-confined glycoprotein recognition sitescitations
- 2019Suitability of developed composite materials for meniscal replacement: mechanical, friction and wear evaluationcitations
- 2019Microwave heating experiment of lunar simulant (JSC-1A) using a bespoke industrial microwave apparatus
- 2018Twisting fatigue in multilayer films of Ag-alloy with indium tin oxide on polyethylene terephthalate for flexible electronics devicescitations
- 2017Liquid-like behaviour of gold nanowire bridgescitations
- 2017Gallium (III)-metalloporphyrin grafted magnetite nanoparticles for fluoride removal from aqueous solutionscitations
- 2017Microparticle surface layering through dry coating: impact of moisture content and process parameters on the properties of orally disintegrating tabletscitations
- 2017Confirmation of a Nanohybrid Shish-Kebab (NHSK) Structure in Composites of PET and MWCNTscitations
- 2017The formation of a nanohybrid shish-kebab (NHSK) structure in melt-processed composites of poly (ethylene terephthalate) (PET) and multi-walled carbon nanotubes (MWCNTs)citations
- 2016Spin-on-carbon hard masks utilising fullerene derivativescitations
- 2016On the origin and magnitude of surface stresses due to metal nanofilmscitations
- 2015In vitro performance of dye-loaded microsphere-based controlled release technologies synthesized via electrospray atomization
- 2015Failure behaviour of AZO/Ag/AZO multilayers on PEN substrates for flexible electronic devices
- 2015Nano-hydroxyapatite deposition on titanium using peptide aptamers
- 2015Functionalization of biomedical surfaces by peptide aptamers
- 2015The effects of corrosion, fatigue and fatigue corrosion on ITO/Ag/ITO-coated polymer substrates used in solar cell applications
- 2015Multiscale patterning of nanocomposite polyelectrolyte/nanoparticle films using inkjet printing and AFM scratchingcitations
- 2015Electrospray synthesis of PLGA TIPS microspheres
- 2015High temperature reliability of power module substrates
- 2014Transient bioimpedance monitoring of mechanotransduction in artificial tissue during indentationcitations
- 2014Pixel spacing effects for nanofabrication using focused ion beam
- 2013NEMS based tactile sensing in an artificial finger
- 2013Development of a synovial fluid analogue with bio-relevant rheology for wear testing of orthopaedic implantscitations
- 2013Structural changes to resorbable calcium phosphate bioceramic aged <i>in vitro</i>citations
- 2013Spherical indentation analysis of stress relaxation for thin film viscoelastic materialscitations
- 2013Degradation of polymer filmscitations
- 2013Active screen plasma nitriding enhances cell attachment to polymer surfacescitations
- 2013Nitrogen plasma surface modification enhances cellular compatibility of aluminosilicate glasscitations
- 2012Dielectric properties of pulsed-laser deposited indium tin oxide thin filmscitations
- 2012Surface functionalisation of silicon-substituted apatite xerogels
- 2012Manufacturing of agarose-based chromatographic adsorbents – effect of ionic strength and cooling conditions on particle structure and mechanical strengthcitations
- 2012Manufacturing of agarose-based chromatographic adsorbents with controlled pore and particle sizes
- 2011Residual stress analysis of all perovskite oxide cantileverscitations
- 2011Manufacturing of agarose-based chromatographic adsorbents with controlled pore and particle size
- 2011Characteristics and durability of fluoropolymer thin filmscitations
- 2011Micro-stereolithography (MSL) employing a polymer/magnetite nanocomposite for digital manufacturing of functional flow sensors
- 2011A miniature flow sensor fabricated by micro-stereolithography employing a magnetite/acrylic nanocomposite resincitations
- 2010Effect of active screen plasma nitriding on the biocompatibility of UHMWPE surfaces
- 2010Microstructure and dielectric function modelling by spectroscopic ellipsometry and energy electron loss spectroscopy of In<sub>2</sub>O<sub>3</sub>:Sn thin films
- 2010Effect of plasma surface modification on the biocompatibility of UHMWPEcitations
- 2010Matching the nano- to the meso-scale: measuring deposit–surface interactions with atomic force microscopy and micromanipulationcitations
- 2009Structural, electrical and optical properties of Si-doped ZnO thin films grown by pulsed laser deposition
- 2009Microstructure–property relationships in thin film ITOcitations
- 2009Surface modification of silicon substituted apatite
Places of action
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article
Development of a synovial fluid analogue with bio-relevant rheology for wear testing of orthopaedic implants
Abstract
The rheological properties of synovial fluid (SF) are crucial to the performance of joint prostheses. During the development of joint prostheses, wear tests are performed, which simulate joint movements in diluted solutions (usually between 25 and 33% v/v) of bovine serum which has very different rheological properties compared with native SF, where rheology is maintained by hyaluronan. Consequently, there is a need to develop a more suitable artificial SF. In this study, we used rheological techniques to understand SF flow properties which provided an insight into the mechanical behaviour required of a practical SF analogue. Steady-shear viscosity measurements were performed to reveal changes as a function of shear rate. To analyse the viscoelastic properties small deformation oscillatory measurements of storage modulus (G') loss modulus (G″) and complex viscosity (η*) were made. The rheological properties of the SF where compared with those of the polysaccharides sodium alginate, gellan gum and mixtures of both polymers. Initial results revealed classic shear thinning behaviour for the SF with a small Newtonian plateau at low shear rates with a gradual reduction in viscosity with increasing shear rate. Viscoelasticity measurements also showed that at low frequencies of oscillation there was a viscous response with G″ greater than G' and at higher frequencies there was an elastic response. Rheological properties were found to be similar to that of a 50:50 mix of 2% w/v high molecular weight alginate and 0.75% w/v gellan gum. Importantly, the lubricating behaviour of the serum differed significantly from the biopolymer blend over a full range of sliding velocities. The biopolymer blend was shown to lubricate the opposing surfaces more effectively. This difference was attributed to the more rapid alignment of the polysaccharide during shear when compared with the bovine albumin.