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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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Stamboulis, Artemis
Imperial College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2023A Novel Approach for Powder Bed Fusion of Ceramics Using Two Laser Systemscitations
- 2022Processing and interpretation of core‐electron XPS spectra of complex plasma‐treated polyethylene‐based surfaces using a theoretical peak model
- 2021Antimicrobial bioceramics for biomedical applicationscitations
- 2021An Overview of Sputtering Hydroxyapatite for BiomedicalApplicationcitations
- 2019Mechanical testing of antimicrobial biocomposite coating on metallic medical implants as drug delivery systemcitations
- 2017Types of ceramics: Material classcitations
- 2017Types of ceramics : material class
- 2015Nano-hydroxyapatite deposition on titanium using peptide aptamers
- 2015Functionalization of biomedical surfaces by peptide aptamers
- 2014Electrospun Fibres of Polyhydroxybutyrate Synthesized by Ralstonia eutropha from Different Carbon Sourcescitations
- 2014Electrospun Fibres of Polyhydroxybutyrate Synthesized by Ralstonia eutropha from Different Carbon Sourcescitations
- 2014Use of inter-fibril spaces among electrospun fibrils as ion-fixation and nano-crystallization
- 2014Nanoclay addition to a conventional glass ionomer cementscitations
- 2014Electrospun fibres of polyhydroxybutyrate synthesized by ralstonia eutropha from different carbon sourcescitations
- 2014Effect of nanoclay dispersion on the properties of a commercial glass ionomer cementcitations
- 2013Sol-Gel Preparation of Silica-Based Nano-Fibers for Biomédical Applications
- 2013Active screen plasma nitriding enhances cell attachment to polymer surfacescitations
- 2013Nitrogen plasma surface modification enhances cellular compatibility of aluminosilicate glasscitations
- 2012Durability and reliability of medical polymerscitations
- 2011An X-ray micro-fluorescence study to investigate the distribution of Al, Si, P and Ca ions in the surrounding soft tissue after implantation of a calcium phosphate-mullite ceramic composite in a rabbit animal modelcitations
- 2010Effect of active screen plasma nitriding on the biocompatibility of UHMWPE surfaces
- 2008Solid state MAS-NMR and FTIR study of barium containing alumino-silicate glasses
- 2007Real-time nucleation and crystallisation studies of a fluorapatite glass-ceramics using small-angle neutron scattering and neutron diffractioncitations
- 2007Structural characterization of ionomer glasses by multinuclear solid state MAS-NMR spectroscopycitations
- 2006The influence of montmorillonite clay reinforcement on the performance of a glass ionomer restorativecitations
- 2006Real Time Neutron Diffraction Studies of apatite glass ceramicscitations
- 2002Mechanical properties of biodegradable polymer sutures coated with bioactive glasscitations
Places of action
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article
Electrospun fibres of polyhydroxybutyrate synthesized by ralstonia eutropha from different carbon sources
Abstract
The properties of PHB may be affected by the carbon source used in its production and this may affect nanofibres made from this polymer by electrospinning. In this study, P(3-HB) was produced from glucose, rapeseed oil, and olive oil by Ralstonia eutropha H16. Cell growth and polymer production were higher in olive or rapeseed oil supplemented media compared to glucose supplemented media. FT-IR, ¹H-, ¹³C-NMR, and ESI/MSn confirmed that the synthesized polymers were P(3-HB). SEM micrograph showed the formation of nanofibres from P(3-HB) samples with the fibre diameters dependent on the source of the carbon used in polymer synthesis and the concentration of the polymer in the electrospinning solution. GPC showed that P(3-HB) from glucose (G-PHB) had a higher molecular weight (7.35x10 gmol¯¹) compared to P(3-HB) from rapeseed (R-PHB) and olive (O-PHB) oil. Differential scanning calorimetry (DSC) showed that the crystallinity of the electrospun polymers reduces with decreasing polymer concentration with R-PHB having lower crystallinity at all concentrations used. These observation shows that more PHB yield can be obtained using either rapeseed or olive oil compared to glucose with glucose producing polymers of higher molecular weight. It also show that electrospinning could be used to reduce the crystallinity of PHB fibres.