A5006305538- Electrospun Nanofibers in Biomedical Applications
- Osteoarthritis Treatment and Mechanisms
- Carbon Nanotubes in Composites
- Mesenchymal stem cell research
- Bone Tissue Engineering Materials
- Tissue Engineering and Regenerative Medicine
- Angiogenesis and VEGF in Cancer
- 3D Printing in Biomedical Research
- Orthopaedic implants and arthroplasty
- Additive Manufacturing and 3D Printing Technologies
- Bone fractures and treatments
- Medical Imaging and Analysis
- Spine and Intervertebral Disc Pathology
- Mechanical Behavior of Composites
- Periodontal Regeneration and Treatments
- Material Properties and Applications
- Graphene and Nanomaterials Applications
- Polymer Nanocomposites and Properties
- Polymer Nanocomposite Synthesis and Irradiation
- Nanotechnology research and applications
- Cellular Mechanics and Interactions
- Proteoglycans and glycosaminoglycans research
- Knee injuries and reconstruction techniques
- Hydrogels: synthesis, properties, applications
- Tribology and Wear Analysis
Athlone Institute of Technology
2015-2019
Ollscoil na Gaillimhe – University of Galway
2006-2015
National University of Ireland
2008-2013
Trinity College Dublin
2000-2005
Advanced Materials and BioEngineering Research
2002-2003
University of Limerick
2000-2001
In this work, multiwalled carbon nanotubes were investigated as potential mechanical reinforcement agents in two hosts, polyvinyl alcohol (PVA) and poly(9-vinyl carbazole) (PVK). It was found that, by adding various concentrations of nanotubes, both Young’s modulus hardness increased factors 1.8 1.6 at 1 wt % PVA 2.8 2.0 8 PVK, reasonable agreement with the Halpin–Tsai theory. Furthermore, presence to nucleate crystallization PVA. This crystal growth is thought enhance matrix-nanotube stress...
Abstract Poly(methyl methacrylate) (PMMA)‐functionalized multiwalled carbon nanotubes are prepared by in situ polymerization. Infrared absorbance studies reveal covalent bonding between polymer strands and the nanotubes. These treated blended with pure PMMA solution before drop‐casting to form composite films. Increases Young's modulus, breaking strength, ultimate tensile toughness of ×1.9, ×4.7, ×4.6, ×13.7, respectively, observed on addition less than 0.5 wt % Effective reinforcement is...
The synergy of the unique properties carbon nanotubes (CNT) with remarkable potential human mesenchymal stem cells (hMSC) provides an exciting opportunity for novel therapeutic modalities. However, little is known about impact CNT on hMSC behavior. We report effect renewal, metabolic activity, and differentiation. Furthermore, we tracked intracellular movement through cytoplasm to a nuclear location assessed effects cellular ultra structure.
Purpose: Selective laser sintering (SLS) is a rapid pro- totyping technique applied to produce tissue-engineer- ing scaffolds from powder materials. The standard scanning technique, however, often produces struts of extensive thickness, which means fabrication high- ly porous with small overall dimensions quite difficult. Nevertheless, this study aims overcome shortfall. Design/methodology/approach: To end, three methods were evaluated in terms minimum feature size and freedom design, using...
Abstract Stable dispersions of impure multiwall carbon nanotubes (multiwall and soot) in an acrylated epoxidized soy oil (AESO) based thermosetting resin were obtained by mechanical stirring. The required stirring time increased with increasing amount nanotubes. Thermogravimetric analysis the polymerized samples showed some loss due to sedimentation. properties improved significantly (the modulus 30%) for 0.28 wt % dispersed Higher nanotube loads resulted significant aggregation during...
Abstract In an effort to reduce organ replacement and enhance tissue repair, there has been a tremendous create biomechanically optimized scaffolds for engineering applications. contrast, the development characterization of electroactive attracted little attention. Consequently, creation carbon nanotube based poly(lactic acid) nanofiber scaffold is described herein. After 28 d in physiological solution at 37 °C, change mass, chemical properties polymer morphology seen, while mechanical...
Abstract The increased use of polyphenylene sulphide (PPS) and polyetheretherketone based composites for aircraft structures has highlighted the need reliable methods bonding these materials to metallic components such as titanium. Both composite titanium adhesive bonds exhibit poor long-term durability when exposed hot/wet conditions, aerospace fluids solvents. As a result, surface treatments are employed enhance energy, roughness alter chemistry provide better durability. In this initial...