Universiteit Antwerpen

Vito Nv

Vito Nv (vlaamse Instelling Voor Technologisch Onderzoek Nv)

Steven Mullens

Jasper Lefevere

Lidia Protasova

Bart Michielsen

Dirk Vangeneugden

Vera Meynen

Pegie Cool

Simge Danaci

Ivo Thijs

Erwin Van Hoof

Wim Bouwen

Marijn Gysen

Elena Mihaela Seftel

Marleen Rombouts

Jo Verwimp

A method and system for manufacturing one or more three-dimensional porous structures (). Filaments () are deposited on a support in a predetermined interconnected arrangement in a plurality of stacked layers () for forming one or more porous structure with interconnected pores (). A nozzle head () with a plurality of nozzles () is used for depositing filaments. The plurality of nozzles are spaced apart from each other with a predetermined spacing therebetween. Each nozzle has an opening area through which filaments are dispensed as the nozzle head is moved relative to the support. Multiple 3D porous structures are manufactured in parallel, using a subset of nozzles for each porous structure, each subset of nozzles including at least one nozzle. Neighboring subsets of nozzles are distanced in order to provide a working area on which the relevant porous structure of the plurality of porous structures is manufactured.

Method and system for manufacturing three- dimensional porous structures

The present disclosure relates to a method for producing lanthanide doped layered double hydroxides (Ln-doped LDHs). The method includes the steps of preparing a carbonate free alkaline solution; preparing a solution of metal salts comprising a salt of a lanthanide; co-precipitating the alkaline solution and the solution of metal salts to form a mixture and Ln-doped LDH precipitate wherein the pH of the mixture is maintained at a constant value; aging the precipitate; and separating the precipitate from the solution. The alkaline solution is an aqueous ammonia solution. The present disclosure is also related to lanthanide-doped layered double hydroxides (La-doped LDHs) obtainable by such a method, as well as to the use of the lanthanide-doped layered double hydroxides obtainable by such a method.

Lanthanide-doped layered double hydroxides and method of producing same

Methods use a catalytic composition built up from a ceramic material including a catalytic material and a first inorganic binder and a second inorganic binder and a catalytic structure made thereof. Preferably, the structure is made by a colloidal ceramic shaping technique. The structure is used for catalytic or ion exchange applications. The catalytic structures have excellent mechanical, physicochemical and catalytic properties.

Catalytic composition and structures made thereof

A catalytic composition is built up from a ceramic material including a catalytic material and a first inorganic binder and a second inorganic binder and a catalytic structure made thereof. Preferably, the structure is made by a colloidal ceramic shaping technique. The structure is usable for catalytic or ion exchange applications as well. It is demonstrated that the catalytic structures have excellent mechanical, physicochemical and catalytic properties.

A surgical implant may include a porous structure with interconnected pores for ingrowth of bone into the porous structure. The porous structure has an arrangement of fibres which are attached to one another, the fibres being arranged in stacked layers. The porous structure has a surface including different regions having different porosities. A method of making the above surgical implant is also described.

Surgical implants comprising graded porous structures

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Mol, Belgium

Steven Mullens