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Browsing MSSI - Materials & Surface Science Institute by Title

Browsing MSSI - Materials & Surface Science Institute by Title

Now showing items 21-40 of 250

Breakdown of biodegradable polymers the breakdown of poly(D,L lactideco-glycolide polymers in agitated and stagnant environments

Serrano-Sanguinetti, Nancy (University of Limerick, 2000)

Poly( d,l lactide-co-glycolide) copolymers are used extensively in biomedical implants due to their outstanding biocompatibility, bioresorbability and the fact that wide ranges of physical, thermal, mechanical and ...
Capturing the embryonic stages of self-assembly - design rules for molecular computation

Nirmalraj, Peter N; Thompson, Damien; Riel, Heike E (Nature Publishing Group, 2015)

The drive towards organic computing is gaining momentum. Interestingly, the building blocks for such architectures is based on molecular ensembles extending from nucleic acids to synthetic molecules. Advancement in this ...
The catalytic hydrogenation of furfural to furfuryl alcohol

O'Driscoll, Áine (University of Limerick, 2016)

The production of energy and chemicals from renewable resources has gained significant attention as the global effort and legislated requirements to transition from fossil fuels to biofuels intensifies. The synthesis of ...
Cell-seeded decellularised extracellular matrices as an advanced approach for tissue engineering

Piterina, Anna Valentinova; Davis, Laura M.; Meaney, Claire L.; Cloonan, Aidan J.; Walsh, Michael T.; McGloughlin, Timothy M. (2009)

Development and optimisation of therapeutic applications using biological scaffolds composed of naturally occurring extracellular matrix (ECM) have received significant attention in the field of tissue engineering. ...
Centimetre scale assembly of vertically aligned and close packed semiconductor nanorods from solution.

Ahmed, Shafaat; Ryan, Kevin M. (Royal Society of Chemistry, 2009)

Assembly of CdS nanorods (8 × 100 nm) into vertically aligned arrays over very large areas on a substrate either as a monolyaer or severaly multilayers is shown by electrophoresis.
Characterising human atherosclerotic carotid plaque tissue composition and morphology using combined spectroscopic and imaging modalities

Barrett, Hilary E; Mulvihill, John J; Cunnane, Eoghan M; Walsh, Michael T. (BioMed Central, 2015)

Calcification is a marked pathological component in carotid artery plaque. Studies have suggested that calcification may induce regions of high stress concentrations therefore increasing the potential for rupture. However, ...
Characterization of nanoporous gold electrodes for bioelectrochemical applications

Scanlon, Micheál D; Salaj-Kośla, Urszula; Belochapkine, Serguei; MacAodha, Domhnall; Leech, Dónal; Ding, Yi; Magner, Edmond (American Chemical Society, 2012)

The high surface areas of nanostructured electrodes can provide for significantly enhanced surface loadings of electroactive materials. The fabrication and characterization of nanoporous gold (np-Au) substrates as electrodes ...
Clinical risk factors for osteoporosis in Ireland and the UK: a comparison of FRAX and QFracturescores

Cummins, Niamh M; Poku, E.K.; Towler, M.R; O'Driscoll, O.M.; Ralston, S.R. (Springer-Verlag, 2011)

Introduction: Recently two algorithms have become available to estimate the 10-year probability of fracture in patients suspected to have osteoporosis on the basis of clinical risk factors (CRF); the FRAX algorithm and ...
Cold compression residual stress reduction in aluminum alloy 7010

Tanner, D.A; Robinson, J.S; Cudd, Richard L (Trans Tech Publications, 2000)

7010 is one of the high strength aluminium alloys used mainly as plate and forgings in the aerospace industry. Its high strength is achieved through a quenching operation where the material is rapidly cooled from the ...
Colloidal synthesis of multinary metal chalcogenide nanocrystals with composition, shape and crystal phase control

Singh, Shalini (University of Limerick, 2015)

This thesis describes novel colloidal approaches towards the synthesis of multicomponent semiconductor nanocrystals with tight control over morphology, composition and crystal phase. The thorough study of the complexity ...
Colloidal synthesis of wurtzite Cu2ZnSnS4 nanorods and their perpendicular assembly

Singh, Ajay; Geaney, Hugh; Laffir, Fathima R.; Ryan, Kevin M. (American Chemical Society, 2012)

The quaternary copper chalcogenide, Cu2ZnSnS4, is an important emerging material for the development of low cost and sustainable solar cells. Here we report a facile solution synthesis of stoichiometric Cu2ZnSnS4 in size ...
Comparative sintering of zirconia and hydroxyapatite-zirconia composites

Reidy, Colin (University of Limerick, 2010)

Hydroxyapatite [Ca10(PO4)6OH2, HA] is the major constituent of the mineral phase of bone and exhibits desirable properties as a bone graft, such as biocompatibility, bioactivity, osteoconductivity and direct bonding to ...
A comparative study of the use of powder X-ray diffraction, raman and near infrared spectroscopy for quantification of binary polymorphic mixtures of piracetam

Croker, Denise M; Hennigan, Michelle C; Maher, Anthony; Hu, Yun; Ryder, Alan G; Hodnett, Benjamin K (Elsevier, 2012)

Diffraction and spectroscopic methods were evaluated for quantitative analysis of binary powder mixtures of FII(6.403) and FIII(6.525) Piracetam. The two polymorphs of Piracetam could be distinguished using powder X-ray ...
Comparison of antibacterial properties of commercial bone cements and fillers with a zinc based glass polyalkenoate cement

Wren, A.W.; Cummins, Niamh M; Towler, M.R (Springer-Verlag, 2010)

Postoperative infection following invasive surgical procedures is a significant cause for concern, particularly in spinal reconstructive surgery. The objective of the study was to compare the antibacterial efficacy of a ...
Comparison of mesoporous silicate supports for the immobilisation and activity of cytochrome c and lipase

Abdallah, Noreldeen Hassan; Schlumpberger, Miriam; Gaffney, Darragh; Hanrahan, John P.; Tobin, Joseph M; Magner, Edmond (Elsevier, 2014)

The activity and stability of Candida antartica lipase B (CALB) and cytochrome c immobilised on to, SBA-15 and a porous spherical silicate material (PPS), were examined. The materials possess similar pore diameters but ...
A comparison of modelling techniques for computing wall stress in abdominal aortic aneurysms

Doyle, Barry J.; Callanan, Anthony; McGloughlin, Timothy M. (BioMed Central, 2007)

BACKGROUND: Aneurysms, in particular abdominal aortic aneurysms (AAA), form a significant portion of cardiovascular related deaths. There is much debate as to the most suitable tool for rupture prediction and interventional ...
Comparison of open hole tension characteristics of high strength glass and carbon fibre-reinforced composite materials

O'Higgins, Ronan M; McCarthy, Michael A; McCarthy, Conor T (Elsevier, 2008)

An experimental study was carried out to determine the open hole tension (OHT) characteristics of carbon fibre-reinforced plastic (CFRP) and high strength S2-glass fibre-reinforced plastic (GFRP). Tests to failure and ...
Complete synthesis of germanium nanocrystal encrusted carbon colloids in supercritical CO2 and their superhydrophobic properties

Barrett, Christopher A.; Singh, Ajay; Murphy, Joseph A.; O'Sullivan, Catriona; Buckley, D.N.; Ryan, Kevin M. (American Chemical Society, 2011)

Colloidal carbon spheres were synthesized by the carbonization of squalane, a nonvolatile hydrocarbon solvent, in supercritical carbon dioxide. Precise pressure modulation of the fluid medium led to size controlled growth ...
Compound copper chalcogenide nanocrystals: synthetic approaches to fabricate multi-component semiconductor nanocrystals for technological applications

Coughlan, Claudia (University of Limerick, 2014)

This thesis describes the development of novel synthetic routes to fabricate a range of multi-component, copper chalcogenide semiconductor nanocrystals using colloidal chemistry. Colloidal routes to ternary and quaternary ...
Conductive films of ordered nanowire arrays

Ziegler, Kirk J.; Polyakov, Boris; Kulkarni, Jaideep S.; Crowley, Timothy A.; Ryan, Kevin M.; Morris, Michael A.; Erts, Donats; Holmes, Justin D. (Royal Society of Chemistry, 2004)

High-density, ordered arrays of germanium nanowires have been synthesised within the pores of mesoporous thin films (MTFs) and anodized aluminium oxide (AAO) matrices using a supercritical fluid solution-phase inclusion ...

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