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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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Tuck, Christopher
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2023Strategies for Integrating Metal Nanoparticles with Two-Photon Polymerization Process: Toward High Resolution Functional Additive Manufacturingcitations
- 2023Additively Manufactured 3D Micro-bioelectrodes for Enhanced Bioelectrocatalytic Operationcitations
- 2023Strategies for Integrating Metal Nanoparticles with Two-Photon Polymerization Processcitations
- 2022Reactive Jetting of High Viscosity Nanocomposites for Dielectric Elastomer Actuationcitations
- 2022Antimicrobial ‘inks’ for 3D printing: block copolymer-silver nanoparticle composites synthesised using supercritical CO2citations
- 2021The influence of printing parameters on multi-material two-photon polymerisation based micro additive manufacturingcitations
- 2021An imidazolium-based supramolecular gelator enhancing interlayer adhesion in 3D printed dual network hydrogelscitations
- 2021Bespoke 3D-Printed Polydrug Implants Created via Microstructural Control of Oligomerscitations
- 2021Bespoke 3D-Printed Polydrug Implants Created via Microstructural Control of Oligomerscitations
- 2018Compressive failure modes and energy absorption in additively manufactured double gyroid latticescitations
- 2018Selective recrystallization of cellulose composite powders and microstructure creation through 3D binder jettingcitations
- 2018Reactive material jetting of polyimide insulators for complex circuit board designcitations
- 2018Band gap behavior of optimal one-dimensional composite structures with an additive manufactured stiffenercitations
- 2018Author Correction: Additive manufacture of complex 3D Au-containing nanocomposites by simultaneous two-photon polymerisation and photoreduction
- 2018Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cellscitations
- 20173D inkjet printing of electronics using UV conversioncitations
- 2017Additive manufacture of complex 3D Au-containing nanocomposites by simultaneous two-photon polymerisation and photoreductioncitations
- 2017Insights into the mechanical properties of several triplyperiodic minimal surface lattice structures made by polymeradditive manufacturingcitations
- 2016Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomographycitations
- 2016Additive manufacture of three dimensional nanocomposite based objects through multiphoton fabricationcitations
- 2016Additive Manufacture of Three Dimensional Nanocomposite Based Objects through Multiphoton Fabricationcitations
- 20163D inkjet-printed UV-curable inks for multi-functional electromagnetic applicationscitations
- 2015Nano-hardness and microstructure of selective laser melted AlSi10Mg scan trackscitations
- 2014On the texture formation of selective laser melted Ti-6Al-4Vcitations
- 2014An experimental study into the effects of bulk and flow behaviour of laser sintering polymer powders on resulting part propertiescitations
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.