| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Taresco, Vincenzo
University of Nottingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024A facile one step route that introduces functionality to polymer powders for laser sinteringcitations
- 2022Antimicrobial ‘inks’ for 3D printing: block copolymer-silver nanoparticle composites synthesised using supercritical CO2citations
- 2021Amylose/cellulose nanofiber composites for all-natural, fully biodegradable and flexible bioplasticscitations
- 2021Bespoke 3D-Printed Polydrug Implants Created via Microstructural Control of Oligomerscitations
- 2021Bespoke 3D-Printed Polydrug Implants Created via Microstructural Control of Oligomerscitations
- 2020Etoposide and olaparib polymer-coated nanoparticles within a bioadhesive sprayable hydrogel for post-surgical localised delivery to brain tumourscitations
- 2020Antimicrobial Hyperbranched Polymer–Usnic Acid Complexes through a Combined ROP‐RAFT Strategycitations
- 2020Effects of polymer 3D architecture, size, and chemistry on biological transport and drug delivery in vitro and in orthotopic triple negative breast cancer modelscitations
- 2020Starch/Poly(glycerol-adipate) Nanocomposites: A Novel Oral Drug Delivery Devicecitations
- 2020Low-temperature and purification-free stereocontrolled ring-opening polymerisation of lactide in supercritical carbon dioxidecitations
- 2019Versatile, Highly Controlled Synthesis of Hybrid (Meth)acrylate–Polyester–Carbonates and their Exploitation in Tandem Post-Polymerization–Functionalizationcitations
- 2018Identification of novel ‘inks’ for 3D printing using high throughput screening: bioresorbable photocurable polymers for controlled drug deliverycitations
- 2015Self-assembly of catecholic moiety-containing cationic random acrylic copolymerscitations
Places of action
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article
Antimicrobial ‘inks’ for 3D printing: block copolymer-silver nanoparticle composites synthesised using supercritical CO2
Abstract
Silver nanoparticles (AgNP) are widely exploited for their effective antimicrobial activity against a range of pathogens. Their high efficacy in this regard has seen the global demand for AgNP in consumer products steadily increase in recent years, necessitating research into novel low environmental impact synthesis approaches. Here we present a new synthetic methodology to produce polymer-AgNP composite microparticles using supercritical carbon dioxide (scCO2) and avoiding use of any petrochemically derived solvents. Poly(methyl methacrylate)-poly(4-vinylpyridine) (PMMA-b-P4VP) block copolymers were synthesised via RAFT-mediated dispersion polymerisation in scCO2, with in situ thermal degradation of various amounts of a CO2-soluble silver complex. Selective interaction of the silver with the pyridinyl moieties of the block copolymer allowed the formation of AgNP, dispersed within the block copolymer microparticles, leading to homogeneous composites. The by-products of the reaction were also removed by extracting with a flow of CO2 to yield a clean dry product in a single process. The composites were found to be non-cytotoxic and proved to have good antimicrobial activity against two bacterial strains. Though no significant activity was seen for at least the first 24 hours, inhibition of bacterial growth afterwards proved to be extremely persistent, with inhibition observed even after 15 days. Finally, the microparticulate nature of the synthesised composites was exploited and tested for compatibility in the Laser Sintering (LS) 3D printing process. Composite microparticles were fused to produce solid objects, without aggregation of the AgNP. With further optimisation, these composites could prove to be an incredibly versatile ‘ink’ that may be used within additive manufacturing and 3D printing to rapidly produce bespoke medical devices with inherent antimicrobial activity.