Browsing Articles - PRISM: Polymer, Recycling, Industrial, Sustainability and Manufacturing Institute by Title
Now showing items 109-128 of 173
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On the possibility of replacement of calcium carbonate by a high-performance, economically viable filler in polyethylene composites
(Sage, 2021-07-14)Calcium carbonate (CaCO3) is frequently added to polyethylene (PE) as a filler to reduce costs. An alternative to CaCO3, calcium fluoride (CaF2) was proposed in this research. PE/CaCO3 and PE/CaF2 composites in a wide ... -
Optimizing the hardness of SLA printed objects by using the neural netwok and genetic algorithm
(Elsevier, 2019-06)In the developing field of manufacturing, 3D printing is rapidly increasing the horizon of what is possible. However, the possibility of implementing new 3D methods of production has brought new challenges for industries, ... -
Oxide layer containing apatite formed on Ti-25Nb-25Ta alloy treated by two-step plasma electrolytic oxidation.
(Elsevier, 2020-01-25)Hydroxyapatite (HA) is a bioactive calcium phosphate capable of enhancing the implant/bone connection improving osteoconductivity and osseointegration process. However, the HA presents mechanical properties limiting its ... -
Pathogen displacement during intermittent catheter insertion: a novel in vitro urethra model.
(Wiley, 2019-11-29)Aim: To develop a novel in vitro urethra model and use it to determine if insertion of an intermittent urinary catheter (IC) displaces pathogenic bacteria from the urethral meatus along the urethra. Methods: Displacement ... -
Photopolymerization for filling porous ceramic matrix: improvement of mechanical properties and drug delivering behaviour.
(Wiley, 2019-04)This work presents the photopolymerisation of composite scaffolds where a prefabricated ceramic scaffold was impregnated with poly(ethylene) glycol dimethacrylate (PEGDMA) macromonomer solution. The PEGDMA solution penetrates ... -
Physical properties of shellac material used for hot melt extrusion with potential application in the pharmaceutical industry
(MDPI, 2021-10-28)Hot melt extrusion offers an efficient way of increasing the solubility of a poorly soluble drug. Shellac has potential as a pharmaceutical matrix polymer that can be used in this extrusion process, with further advantages ... -
Platelet-rich plasma, Hydroxyapatite, and Chitosan in the bone and cartilaginous regeneration of femoral trochlea in rabbits: clinical, radiographic, and histomorphometric evaluations.
(Hindawi, 2018-06)The aim of this study was to evaluate the trochlear bone and cartilaginous regeneration of rabbits using the association of PRP, chitosan, and hydroxyapatite. Hole was made in rabbit troches, one hole in each animal ... -
Polymer banknotes: a review of materials, design, and printing
(MDPI, 2023-02-17)Nowadays, more than 45 countries in the world use polymer banknotes in their monetary and banking systems. It is expected that by 2030, another 20 countries will abandon the use of paper banknotes and switch to polymer ... -
Polysaccharides—Naturally Occurring Immune Modulators
(MDPI, 2023-05-19)The prevention of disease and infection requires immune systems that operate effectively. This is accomplished by the elimination of infections and abnormal cells. Immune or biological therapy treats disease by either ... -
Prediction of yerba mate caffeine content using near infrared spectroscopy.
(Taylor & Francis, 2019-06-10)There is a commercial and beneficial interest of producing yerba mate leaves into different grades of caffeine. This work uses a handheld and bench near infrared spectroscopy to compare and predict, using partial least ... -
Preparation and characterization of novel poly(vinyl) (alcohol) (PVA) and poly(acrylic acid) (PAA) hydrogels for sensitive hydrogels.
(Sciforum, 2014-05)Stimuli Sensitive hydrogels have enormous potential in various applications. Various environmental variables are found in the body, such as low pH and elevated temperatures. For this reason, either pH-sensitive and/or ... -
Preparation of a novel freeze thawed poly (vinly alcohol) composite hydrogel for drug delivery applications
(Elsevier, 2007-09)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 ... -
Preparation of biodegradable poltyethylene glycol dimethacrylate hydrogels via thiol-ene chemistry.
(MDPI, 2019-08-13)Through the control of the molecular weight, water content and monomer concentration, polyethylene glycol dimethacrylate (PEGDMA) based hydrogels have been adapted for numerous applications, including as structural scaffolds, ... -
Process optimization for the 3D printing of PLA and HNT composites with Arburg plastic freeforming
(MDPI, 2022-10-12)The industrial use of additive manufacturing continues to rapidly increase as new technology developments become available. The Arburg plastic freeforming (APF) process is designed to utilize standard polymeric granules ... -
Processing and characterisation of various polymer blends to develop implant for tissue engineering applications.
(AESS, 2013)In the past two decades, the repair and reconstruction of musculoskeletal tissues using biodegradable scaffold materials has emerged as one of the most promising approaches in tissue engineering. The aim of this study ... -
Processing stability and the significance of variation in extrusion speeds and temperture on SSB® 55 Pharma Grade Shellac for Oral Drug Delivery
(MDPI, 2017-09-06)The melt-extrusion process is utilized in the pharmaceutical arena for the manufacturing of a variety of dosage forms and formulations, including solid dispersions. This technology is considered an efficient and continuous ... -
The production of a novel poly(vinyl alcohol) hydrogel cryogenic spheres for immediate release using a droplet system.
(IOP Science, 2019-06-05)Although freeze-thaw mechanism for producing crosslinked hydrogels is relatively easy and simple, it lacks sufficient integrity and support leading to modifications on its three-dimensional polymeric network arrangement ... -
Production of polyhydroxybutyrate (PHB) and factors impacting its chemical and mechanical characteristics
(MDPI, 2020-12-04)Plastic pollution is fueling the grave environmental threats currently facing humans, the animal kingdom, and the planet. The pursuit of renewable resourced biodegradable materials commenced in the 1970s with the need for ... -
The production of solid dosage forms from non-degradable polymers.
(Bentham Science, 2015)Non-degradable polymers have an important function in medicine. Solid dosage forms for longer term implantation require to be constructed from materials that will not degrade or erode over time and also offer the utmost ... -
Progressing plastics circularity: a review of mechano-biocatalytic approaches for waste plastic (re)valorization
(Frontiers Media, 2021-06-22)Inspirational concepts, and the transfer of analogs from natural biology to science and engineering, has produced many excellent technologies to date, spanning vaccines to modern architectural feats. This review highlights ...