Browsing Articles - PRISM: Polymer, Recycling, Industrial, Sustainability and Manufacturing Institute by Author "Geever, Luke M."
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Additive manufacturing of personalized pharmaceutical dosage forms via stereolithography.
Healy, Andrew V.; Fuenmayor, Evert; Doran, Patrick; Geever, Luke M.; Higginbotham, Clement L.; Lyons, John G. (MDPI, 2019-12-03)The introduction of three-dimensional printing (3DP) has created exciting possibilities for the fabrication of dosage forms, paving the way for personalized medicine. In this study, oral dosage forms of two drug ... -
Analysis of the mechanical properties of solvent cast blends of PLA/PCL.
Chen, Yuanyuan; Geever, Luke M.; Higginbotham, Clement L.; Devine, Declan M. (Trans Tech Publications, 2014-09)Polylactic acid (PLA) is the most promising material in the biodegradable category. However, brittleness and poor thermal stability restrict its application. To overcome this limitation, PLA may be blended with other ... -
Degradable nanocomposites for fused filament fabrication applications.
Healy, Andrew V.; Waldron, Cathal; Geever, Luke M.; Devine, Declan M.; Lyons, John G. (MDPI, 2018-05-09)There has been a substantial increase in the use and development of plastics over the last century. However, due to ever-diminishing petroleum feedstocks and growing concern for the environment, there has been a rise in ... -
A development of new material for 4D printing and the material properties comparison between the conventional and stereolithography polymerised NVCL hydrogels
Zhuo, Shuo; Geever, Luke M.; Halligan, Elaine; Tie, Billy Shu Hieng; Breheny, Colette (MDPI, 2022-11-22)The term 4D printing refers to the idea that the shape or properties of a printed object can be changed when an external stimulus is applied. In this contribution, a temperature-responsive polymer Poly (N-vinyl caprolactam) ... -
Formulation and evaluation of Fenbendazole extended-release extrudes processed by hot-melt extrusion
Bezerra, Gilberto S.; de Lima, Tielidy A. de M.; Colbert, Declan M.; Geever, Joseph; Geever, Luke M. (MDPI, 2022-10-06)This study aimed to demonstrate the feasibility of hot-melt extrusion in the development of extended-release formulations of Fenbendazole (Fen) dispersed in PEO/PCL blend-based matrices. Their thermal, physical, chemical ... -
Halloysite nanotube reinforced polylactic acid composite.
Chen, Yuanyuan; Geever, Luke M.; Killion, John; Lyons, John G.; Higginbotham, Clement L. (Wiley, 2017-10)Polylactic acid (PLA) has long history in medical applications, and reinforced PLA has the potential to be used in the medical applications that require high mechanical strength such as coronary stents and bone fixation ... -
Lower critical solution temperature tuning and swelling behaviours of NVCL-based hydrogels for potential 4DF printing applications.
Zhuo, Shuo; Halligan, Elaine; Tie, Billy Shu Hieng; Breheny, Colette; Geever, Luke M. (MDPI, 2022-08-02)The phase transitions of poly (N-vinyl caprolactam) (PNVCL) hydrogels are currently under investigation as possible materials for biomedical applications thanks to their thermosensitive properties. This study aims to use ... -
Modulation of the lower critical solution temperature of thermoresponsive poly(N-vinylcaptrolactam) utlizing hydrophilic and hydrophobic monomers
Halligan, Elaine; Zhuo, Shuo; Colbert, Declan Mary; Alsaadi, Mohamad; Tie, Billy Shu Hieng; Bezerra, Gilberto S.N.; Keane, Gavin; Geever, Luke M. (MDPI, 2023-03-23)Four-dimensional printing is primarily based on the concept of 3D printing technology. However, it requires additional stimulus and stimulus-responsive materials. Poly-N-vinylcaprolactam is a temperature-sensitive polymer. ... -
Review of multifarious applications of Poly (lactic acid)
Chen, Yuanyuan; Geever, Luke M.; Killion, John A.; Lyons, John G.; Higginbotham, Clement L. (Taylor & Francis, 2016)Poly (lactic acid) is considered to be a promising alternative to petroleum-based polymers due to its renewability, biodegradability, biocompatibility, and good mechanical properties. Because of the high cost, the applications ... -
Surface modified halloysite nanotubes reinforced polylactic acid for use in biodegradable coronary stents.
Chen, Yuanyuan; Murphy, Alan; Scholz, Dimitri; Geever, Luke M.; Lyons, John G.; Devine, Declan M. (Wiley, 2019-08)Poly(lactic acid) (PLA) was reinforced halloysite nanotubes (HNTs) in this study. To improve dispersion and interfacial adhesion of HNTs within the PLA matrix, HNTs were surface modified with 3‐aminopropyltriethoxysilane ... -
Synthesis and characterisation of hydrogels based on poly (N-vinylcaprolactam) with diethylene glycol diacrylate
Halligan, Elaine; Tie, Billy Shu Hieng; Colbert, Declan Mary; Alsaadi, Mohamad; Zhuo, Shuo; Keane, Gavin; Geever, Luke M. (MDPI, 2023-05)Poly (N-vinylcaprolactam) is a polymer that is biocompatible, water-soluble, thermally sensitive, non-toxic, and nonionic. In this study, the preparation of hydrogels based on Poly (N-vinylcaprolactam) with diethylene ... -
Synthesis and characterization of 4D-printed NVCL-coDEGDA resin using stereolithography 3D printing
Halligan, Elaine; Tie, Billy Shu Hieng; Colbert, Declan Mary; Alsaadi, Mohamad; Zhou, Shuo; Keane, Gavin; Geever, Luke M. (MDPI, 2024-03-19)The design and manufacturing of objects in various industries have been fundamentally altered by the introduction of D-dimensional (3D) and four-dimensional (4D) printing technologies. Four-dimensional printing, a ... -
Synthesis and characterization of high density polyethylene / peat ash composites.
Cao, Zhi; Daly, Michael; Geever, Luke M.; Higginbotham, Clement L.; Devine, Declan M. (Elsevier, 2016-06)A new type of polymer composite was synthesized from one industrial waste, peat ash, at varying mixing ratios of high density polyethylene (HDPE) and the resulting products were characterized using different experiments ...