Browsing Articles - PRISM: Polymer, Recycling, Industrial, Sustainability and Manufacturing Institute by Title
Now showing items 76-95 of 169
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Influence of extrusion screw speed on the properties of halloysite nanotube impregnated polylactic acid nanocomposites
(De Gruyter, 2021)Poly (lactic acid)/halloysite nanotube (PLA/HNT) nanocomposites have been studiedextensively over the past fewyears owing to the interesting properties of the polymer, PLA, and the nanoclay, HNT, individually and as ... -
The influence of low shear microbore extrusion on the properties of high molecular weight poly(l-lactic acid) for medical tubing applications.
(MDPI, 2019-04)Biodegradable polymers play a crucial role in the medical device field, with a broad range of applications such as suturing, drug delivery, tissue engineering, sca olding, orthopaedics, and fixation devices. Poly-l-lactic ... -
Injectable bone substitute based on chitosan with polyethylene glycol polymeric solution and biphasic calcium phosphate microspheres.
(Elsevier, 2020-06-10)We described a method to produce an injectable bone substitute consisting of a solid and liquid phase, this solid was formed using the coacervation method consisting of a mixture of Hydroxyapatite (HAp) and beta-Tricalcium ... -
An investigation into the effects of pH and material concentrations on the morphology of Chitosan-Alginate microspheres prepared using an Ionic Gelation technique.
(IJASRM, 2017-10)The aim of this study was to develop microspheres as a drug delivery system using natural polymeric materials including Alginate and Chitosan using an Ionotropic Gelation method of synthesis. In this study, several ... -
Investigation of a novel freeze-thaw process for the production of drug delivery hydrogels
(Springer, 2005-12)Poly(vinyl alcohol) (PVA) is a water-soluble, biocompatible and biodegradable polymer, which has been widely applied in biomedical fields. In this paper, novel physically cross-linked hydrogels composed of PVA and comprising ... -
Investigation of ethylene oxide-co-propylene oxide for dissolution enhancement of hot-melt extruded solid dispersions.
(Elsevier, 2018-02)The optimal design of amorphous solid dispersion (ASD) formulations requires the use of excipients to maintain supersaturation and improve physical stability in order to ensure shelf-life stability and better absorption ... -
Investigation of miscibility estimation methods between indomethacin and poly(vinylpyrrolidone-co-vinyl acetate).
(Elsevier, 2018)The investigation of the miscibility between active pharmaceutical ingredients (API’s) and polymeric excipients is of great interest for the formulation and development of amorphous solid dispersions, especially in the ... -
Investigation of the effects of orientation on freeze/thawed Polyvinyl alcohol hydrogel properties.
(Elsevier, 2018-12)Although hydrogels produced via freeze-thawing (F/T) technique have been thoroughly studied in literature, stretching hydrogels in between freeze-thawing cycles could change its properties and might be modulated for drug ... -
An investigation of the inter-molecular interaction, solid-state properties and dissolution properties of mixed Copovidone hot-melt extruded solid dispersions.
(Elsevier, 2019-10)Previous research has focused on spray dried quaternary mixtures which due to the addition of a surfactant 26 affected the physical stability and amorphous stability of selected model drugs. Very little research has 27 ... -
Investigation of thermal. mechanical and shape memory properties of 3D-printed functionally graded nanocomposite materials
(MDPI, 2023-09-28)In this study, a 3D-printed photocurable resin was developed by incorporating graphene nanoplatelets functionalised with melamine to investigate the thermal, mechanical, fracture and shape memory behaviours. The objective ... -
Liquid-based 4D printing of shape memory nanocomposites: a review
(MDPI, 2023-01-31)Significant advances have been made in recent years in the materials development of liquidbased 4D printing. Nevertheless, employing additive materials such as nanoparticles for enhancing printability and shape memory ... -
Lower critical solution temperature tuning and swelling behaviours of NVCL-based hydrogels for potential 4DF printing applications.
(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 ... -
Macro and micro routes to high performance bioplastics: bioplastic biodegradability and mechanical and barrier properties
(MDPI, 2021-06-30): On a score sheet for plastics, bioplastics have a medium score for combined mechanical performance and a high score for biodegradability with respect to counterpart petroleum-based plastics. Analysis quickly confirms ... -
Mass customization of polylactic acid (PLA) parts via a hybrid manufacturing process
(MDPI, 2022-12-10)Mass customization is the development of items tailored to specific customers, but produced at low unit cost in high-volume. In this context, hybrid manufacturing (HM) combines fused deposition modeling (FDM) and injection ... -
Mass-customization of oral tablets via the combination of 3D printing and injection molding.
(Elsevier, 2019-10-05)The new frontier of medicine is the personalization of treatment to match a patient’s individual needs. Fused-filament fabrication (FFF) offers a platform for the personalization of drug dosage forms, but one of its chief ... -
Material considerations for fused-filament fabrication of solid dosage forms.
(MDPI, 2018-04)Material choice is a fundamental consideration when it comes to designing a solid dosage form. The matrix material will ultimately determine the rate of drug release since the physical properties (solubility, viscosity, ... -
Material considerations for fused-filament fabrication of solid dosage forms.
(MDPI, 2018-04-02)Material choice is a fundamental consideration when it comes to designing a solid dosage form. The matrix material will ultimately determine the rate of drug release since the physical properties (solubility, viscosity, ... -
Matrix and reservoir-type multipurpose vaginal rings for controlled release of dapivirine and levonorgestrel
(Elsevier, 2016-09-10)A matrix-type silicone elastomer vaginal ring providing 28-day continuous release of dapivirine (DPV) a lead candidate human immunodeficiency virus type 1 (HIV-1) microbicide compound has recently demonstrated moderate ... -
Mechanical properties of anodic titanium films containing ions of Ca and P submitted to heat and hydrothermal treatment.
(Elsevier, 2016-12)Anodic oxidation is a technique widely used to improve the bioactivity of Ti surface. In this study, micro-arc oxidation (MAO) was used to obtain an anodic film incorporating Ca and P ions to evaluate the effect of heat ... -
Micro-injection mouding of PEO/PCL blend-based matrices for extended oral delivery of Fenbendazole
(MDPI, 2023-03-10)Fenbendazole (FBZ) is a broad-spectrum anthelmintic administered orally to ruminants; nevertheless, its poor water solubility has been the main limitation to reaching satisfactory and sustained levels at the site of the ...