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Pierre-Etienne Bourban

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Related publications (86)

Miniature probe for the delivery and monitoring of a photopolymerizable material

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Azadeh Khoushabi, Christophe Moser

Photopolymerization is a common method to cure materials initially in a liquid state, such as dental implants or bone or tissue fillers. Recent advances in the development of biocompatible gel- and cement-systems open up an avenue for in situ photopolymeri ...

SPIE Society of Photo-optical Instrumentation Engineers2015

Photo-polymerization, swelling and mechanical properties of cellulose fibre reinforced poly(ethylene glycol) hydrogels

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Azadeh Khoushabi

The application of hydrogels as load-bearing biomedical components is often limited by their mechanical properties. Often an attempt to improve a hydrogel's stiffness is accompanied by a loss of toughness and swelling properties. In this work, we show that ...

Elsevier Sci Ltd2015

Development of an in situ controllable polymerization tool and process for hydrogel used to replace nucleus pulposus

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Azadeh Khoushabi, Christophe Moser

Currently implants or tissue replacements are inserted either as a whole implant or by injecting a liquid which polymerizes to form a solid implant at the appropriate location. This is either highly invasive or not controllable. We developed a tool to perf ...

Spie-Int Soc Optical Engineering2015

Photopolymerization device for minimally invasive implants: application to nucleus pulposus replacement

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Azadeh Khoushabi, Christophe Moser

Photopolymerization is a common tool to harden materials initially in a liquid state. A surgeon can directly trigger the solidification of a dental implant or a bone or tissue filler. Traditionally, photopolymerization has been used mainly in dentistry. Ov ...

Springer2015

Minimally Invasive Photopolymerization In Intervertebral Disc Tissue Cavities

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Azadeh Khoushabi, Christophe Moser

Photopolymerized hydrogels are commonly used for a broad range of biomedical applications. As long as the polymer volume is accessible, gels can easily be hardened using light illumination. However, in clinics, especially for minimally invasive surgery, it ...

Spie-Int Soc Optical Engineering2014

Biocompatible multi-layered structure comprising foam layers and a functional interface

Pierre-Etienne Bourban, Matthieu Cuénoud

A biocompatible multi-layered structure comprising a first foam layer showing a first degree of porosity and a second foam layer showing a second degree of porosity, both foam layers being attached to one another through an interface, wherein said interfac ...

2014

Dynamic mechanical properties of epoxy/flax fibre composites

Pierre-Etienne Bourban, Fabien Duc

The mechanical and damping properties were measured for unidirectional, 0/90 and twill 2/2 flax fibre (FF) composites containing 40 vol% of fibres in an epoxy matrix. All composites were processed by resin transfer moulding. The influence of the impregnati ...

Sage Publications Ltd2014

Damping of thermoset and thermoplastic flax fibre composites

Pierre-Etienne Bourban, John Christopher Plummer, Fabien Duc

The mechanical and damping properties of unidirectional (UD) and twill 2/2 flax fibre (FF) reinforced thermoset (epoxy) and thermoplastic (polypropylene (PP) and polylactic acid (PLA)) composites containing 40 vol% of fibres have been compared with those o ...

Elsevier Sci Ltd2014

The role of twist and crimp on the vibration behaviour of flax fibre composites

Pierre-Etienne Bourban, Fabien Duc

The damping properties of unidirectional, 0/90 and twill 2/2 flax fibre (FF) reinforced epoxy composites containing 40 vol% of fibres have been measured by vibration beam testing (VBT). The influence of the impregnation quality, the fibre/matrix adhesion, ...

Elsevier Sci Ltd2014

Morphological investigation of polylactide/microfibrillated cellulose composites

Pierre-Etienne Bourban, John Christopher Plummer, Carole Boissard

Optical microscopy and transmission electron microscopy have been used to investigate the morphology of polylactide (PLA)/microfibrillated cellulose (MFC) composites prepared by: compression molding of wet-comingled MFC and PLA latex or powder, twin-screw ...

Springer Berlin Heidelberg2013

Multi-Scale Modeling Of Photopolymerization For Medical Hydrogel-Implant Design

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Azadeh Khoushabi, Salma Farahi

We report on the modeling of a photopolymerizable hydrogel and its application as a replacement of the interior of the intervertebral disc (so called Nucleus Pulposus). The hydrogel is initially injected in its liquid form and then photopolymerized via a s ...

Spie-Int Soc Optical Engineering2013

Mechanical Properties Of A Photopolymerizable Hydrogel For Intervertebral Disc Replacement

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Azadeh Khoushabi

We report on the modelling and experimental validation of a photopolymerizable hydrogel for a Nucleus Pulposus replacement. ...

De Gruyter2013

Composite hydrogels

Dominique Pioletti, Pierre-Etienne Bourban, Arne Christian Vogel

The present invention relates to reinforced composite hydrogel based on a polymer blend and comprising a network of fibres, said polymer blend comprising UV sensitive molecules. It also relates to a process for preparing the reinforced composite hydrogel a ...

2012

Biodegradable polylactide/hydroxyapatite nanocomposite foam scaffolds for bone tissue engineering applications

Pierre-Etienne Bourban, John Christopher Plummer, Claire Diane Delabarde

Supercritical carbon dioxide processing of poly--lactide (PLLA)/hydroxyapatite (nHA) nanocomposites was investigated as a means to prepare foams suitable as scaffolds in bone tissue engineering applications. For given foaming parameters, addition of nHA to ...

Springer US2012

Synthesis and photopolymerization of Tween 20 Methacrylate/N-vinyl-2-Pyrrolidone blend

Dominique Pioletti, Pierre-Etienne Bourban, John Christopher Plummer, Ana Borges de Couraça

Poly(oxyethylene 20 sorbitan) monolaurate (Tween® 20) methacrylates were synthesized by coupling methacryloyl chloride (MeOCl) to Tween 20 in the presence of 4-(N,N-dimethylamino) pyridine, using THF as a solvent, in order to investigate their suitability ...

Elsevier Science Bv2012

The potential of wood fibers as reinforcement in cellular biopolymers

Pierre-Etienne Bourban, Matthieu Cuénoud, Razvan Cristian Neagu

Wood fiber-reinforced polylactic acid composite foams have been successfully produced using supercritical carbon dioxide. The addition of fibers had a strong effect on microstructure of the foams. An increase in wood fiber content implied smaller average c ...

SAGE Publications2012

Plasticization of polylactide foams for tissue engineering

Pierre-Etienne Bourban, John Christopher Plummer, Matthieu Cuénoud

Supercritical CO2 foaming of amorphous and semicrystalline polylactides plasticized by blending with 20 wt% polyethylene glycol has been investigated as a means of producing low-stiffness bioresorbable scaffolds for tissue engineering. For a given set of f ...

SAGE Publications2012

Cellular biocomposites from polylactide and microfibrillated cellulose

Pierre-Etienne Bourban, John Christopher Plummer, Carole Boissard, Razvan Cristian Neagu

This paper describes the production of "green" microfibrillated cellulose-reinforced polylactide cellular biocomposites using a wet mixing technique combined with super-critical carbon dioxide foaming. The effect of composition on the morphology, density a ...

SAGE Publications2012

Foaming Biocomposites of Microfibrillated Cellulose and Polylactic Acid Paper

Pierre-Etienne Bourban, Carole Boissard, Mallory Genoud, Razvan Cristian Neagu

2011

Cellular biodegradable polymer nanocomposite scaffolds

Dominique Pioletti, Pierre-Etienne Bourban, John Christopher Plummer, Alireza Roshan Ghias, Claire Diane Delabarde

2011

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