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| 1 | Phosphate Glass Fibre Composites for Bone Repair显示文摘We investigate high-modulus degradable materials intended to replace metals in biomedical applications.These are typicallycomposites comprising a polylactide(PLA)matrix reinforced with phosphate glass fibres,which provide reinforcementsimilar to E-glass but are entirely degradable in water to produce,principally,calcium phosphate.We have made compositesusing a variety of fibre architectures,from non-woven random mats to unidirectional fibre tapes.Flexural properties in theregion of 30 GPa modulus and 350 MPa strength have been achieved-directly comparable to quoted values for human corticalbone.In collaboration with other groups we have begun to consider the development of foamed systems with structures mimickingcancellous bone and this has shown significant promise.The fibres in these foamed structures provide improved creepresistance and reinforcement of the pore walls.To date the materials have exhibited excellent cellular responses in vitro andfurther studies are due to include consideration of the surface character of the materials and the influence of this on cell interaction,both with the composites and the glass fibres themselves,which show promise as a standalone porous scaffold. | Andrew J.Parsons Ifty Ahmed Papia Haque Ben Fitzpatrick Muhammad I.K.Niazi Gavin S.Walker Chris D.Rudd | 2009 | Journal of Bionic Engineering2009，6，4： | 2 |
| 2 | Physico-chemical and mechanical properties of nanocomposites prepared using cellulose nanowhiskers and poly(lactic acid)显示文摘 | Kazi M. Zakir Hossain Ifty Ahmed Andrew J. Parsons Colin A. Scotchford Gavin S. Walker Wim Thielemans Chris D. Rudd | 2012 | Journal of Materials Science2012，，6： | 1 |
| 3 | Effects of Neighbourhood Size Andconnectivity on the Spatial Continuous Prisoner's Dilemma显示文摘 | Margarita Ifti Timothy Killingback Michael Doebeli | 2004 | Journal of Theoretical Biology2004，，231： | 1 |
| 4 | Tailoring the degradation rate of magnesium through biomedical nano-porous titanate coatings显示文摘A novel approach was developed to reduce the corrosion rate of magnesium(Mg)metal,utilising titanate coatings.Magnetron sputtering was used to deposit ca.500 nm titanium(Ti)coatings onto pure Mg discs,followed by hydrothermal conversion and ion exchange reactions to produce sodium and calcium titanate coatings.SEM confirmed the characteristic nanoporous structure of sodium and calcium titanate,with thicknesses ranging from ca.0.8 to 1.4μm.XPS analysis confirmed the presence of Ti^(4+)-O,Na-O,and Ca-O bonding,whilst Raman spectroscopy demonstrated characteristic vibrational modes(such as TiO 6 octahedral vibrations)of the sodium and calcium titanate perovskite structure.Furthermore,corrosion studies through potentiodynamic polarisation measurements demonstrated the NB/NH CaTC samples to be superior in reducing Mg degradation,compared to other samples tested,through an increase in E_(corr)from-1.49 to-1.33 V,and the reduction in corrosion current density,i corr,from 0.31 to 0.06 mA/cm^(2)for Mg and NB/NH CaTC samples,respectively.There was a clear trend noted for the NB/NH samples,which showed an increase in E corr to more positive values in the following order:Mg | Matthew D.Wadge Jamie McGuire Benjamin V.T.Hanby Reda M.Felfel Ifty Ahmed David M.Grant | 2021 | Journal of Magnesium and Alloys2021，9，1： | 0 |
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