Concept

Acide polyglycolique

Publications associées (9)

Sustainable polyesters via direct functionalization of lignocellulosic sugars

François Maréchal, Véronique Michaud, Yves Leterrier, Harm-Anton Klok, Jeremy Luterbacher, Adrien Julien Demongeot, Graham Reid Dick, Maxime Alexandre Clément Hedou

The development of sustainable plastics from abundant renewable feedstocks has been limited by the complexity and efficiency of their production, as well as their lack of competitive material properties. Here we demonstrate the direct transformation of the ...

2022

Microstructured biodegradable fibers for advanced controlled release

Shahrzad Shadman Yazdi

Biodegradable polymers are increasingly at the heart of therapeutic devices. Particularly in the form of thin and elongated fibers, they offer an effective strategy for controlled-release in a variety of biomedical configurations such as sutures, scaffolds ...

EPFL2020

Effect of Surface Charge on Surface-Initiated Atom Transfer Radical Polymerization from Cellulose Nanocrystals in Aqueous Media

Harm-Anton Klok

Cellulose nanocrystals (CNCs) with different charge densities were utilized to examine the role of electrostatic interactions on surface-initiated atom transfer radical polymerization (SI-ATRP) in aqueous media. To this end, growth of hydrophilic uncharged ...

American Chemical Society2016

Tailoring self-assembly and optoelectronic properties of organic semiconductors via macromolecular engineering

Andrea Gasperini

Conjugated polymers and small molecules are a promising class of semiconducting materials for application in macroelectronic and energy conversion devices. The development of high performance devices employing this class of semicrystalline materials ultima ...

EPFL2016

Synthesis of Side-Chain Functional Polyesters via Baylis-Hillman Polymerization

Harm-Anton Klok, Sanhao Ji

Strategies that allow access to side-chain functional polyesters are valuable as they would enable to engineer the properties of these hydrolytically degradable materials. This contribution explores the feasibility of a novel approach toward side-chain fun ...

American Chemical Society2011

Design of amphiphilic nanocapsules based on hyperbranched star-block copolymers for the encapsulation and the controlled release of olfactory compounds

Céline Ternat

Effective encapsulation of small, volatile, weakly water-soluble molecules such as flavors and fragrances is necessary to protect them from degradation, to increase their lifetime, and to improve their water dispersion and fixation depending on the substra ...

EPFL2007

Processing of homogeneous ceramic/polymer blends for bioresorbable composites

Jan-Anders Edvin Maansson, Pierre-Etienne Bourban

Three methods to mix ceramic fillers, hydroxyapatite or β-tricalcium phosphate, with a polymer matrix, a poly l-lactic acid, are investigated as a first step prior to supercritical foaming to prepare porous composite structures for biomedical applications. ...

2006

Polylactic Acid–Phosphate Glass Composite Foams as Scaffolds for Bone Tissue Engineering

Jan-Anders Edvin Maansson, Dominique Pioletti, Pierre-Etienne Bourban

Phosphate glass (PG) of the composition 0.46(CaO)–0.04(Na2O)–0.5(P2O5) was used as filler in poly-L-lactic acid (PLA) foams developed as degradable scaffolds for bone tissue engineering. The effect of PG on PLA was assessed both in bulk and porous composit ...

2006

In vivo performance of a new biodegradable polyester urethane system used as a nerve guidance channel

Patrick Aebischer

Biodegradable nerve guidance channels (NGCs) represent a promising alternative to current clinical nerve repair procedures. To be suitable as a NGC material, the polymer system should possess elastomeric properties and degrade at a defined rate without int ...

1998