Jan Weichhold
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View article: Biological and mechanical performance of calcium phosphate cements modified with phytic acid
Biological and mechanical performance of calcium phosphate cements modified with phytic acid Open
Calcium phosphate cements, primarily brushite cements, require the addition of setting retarders to ensure adequate processing time and processability. So far, citric acid has been the primary setting retarder used in this context. Due to …
View article: Aqueous Calcium Phosphate Cement Inks for 3D Printing
Aqueous Calcium Phosphate Cement Inks for 3D Printing Open
Mimicking the native properties and architecture of natural bone is a remaining challenge within the field of regenerative medicine. Due to the chemical similarity of calcium phosphate cements (CPCs) to bone mineral, these cements are well…
View article: Exploring the potential of magnesium oxychloride, an amorphous magnesium phosphate, and newberyite as possible bone cement candidates
Exploring the potential of magnesium oxychloride, an amorphous magnesium phosphate, and newberyite as possible bone cement candidates Open
Magnesium phosphate-based bone cements, particularly struvite (MgNH 4 PO 4 ∙6H 2 O)-forming cements, have attracted increased scientific interest in recent years because they exhibit similar biocompatibility to hydroxyapatite while degradi…
View article: The Multiweek Thermal Stability of Medical‐Grade Poly(ε‐caprolactone) During Melt Electrowriting
The Multiweek Thermal Stability of Medical‐Grade Poly(ε‐caprolactone) During Melt Electrowriting Open
Melt electrowriting (MEW) is a high‐resolution additive manufacturing technology that places unique constraints on the processing of thermally degradable polymers. With a single nozzle, MEW operates at low throughput and in this study, med…
View article: Controlling Topography and Crystallinity of Melt Electrowritten Poly(ɛ-Caprolactone) Fibers
Controlling Topography and Crystallinity of Melt Electrowritten Poly(ɛ-Caprolactone) Fibers Open
Melt electrowriting (MEW) is an aspiring 3D printing technology with an unprecedented resolution among fiber-based printing technologies. It offers the ability to direct-write predefined designs utilizing a jet of molten polymer to fabrica…
View article: Melt electrowriting of poly(vinylidene fluoride‐ <i>co</i> ‐trifluoroethylene)
Melt electrowriting of poly(vinylidene fluoride‐ <i>co</i> ‐trifluoroethylene) Open
Poly(vinylidene fluoride‐ co ‐trifluoroethylene) (P(VDF‐co‐TrFE)) is an electroactive polymer with growing interest for applications in biomedical materials and flexible electronics. In this study, a solvent‐free additive manufacturing tec…
View article: Phase Conversion of Ice‐Templated α‐Tricalcium Phosphate Scaffolds into Low‐Temperature Calcium Phosphates with Anisotropic Open Porosity
Phase Conversion of Ice‐Templated α‐Tricalcium Phosphate Scaffolds into Low‐Temperature Calcium Phosphates with Anisotropic Open Porosity Open
Aligned porous non-sintered and sintered a-tricalcium phosphate (a-TCP) scaffolds are prepared by ice-templating and converted into the low-temperature calcium phosphates calcium-deficient hydroxyapatite (CDHA), brushite and monetite. This…
View article: Melt Electrowriting of Poly(vinylidene Fluoride-Co-Trifluoroethylene)
Melt Electrowriting of Poly(vinylidene Fluoride-Co-Trifluoroethylene) Open
Poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-co-TrFE)) is an electroactive polymer with growing interest for applications in biomedical materials and flexible electronics. In this study, a solvent-free additive manufacturing techn…
View article: Melt Electrowriting of Poly(vinylidene Fluoride-Co-Trifluoroethylene)
Melt Electrowriting of Poly(vinylidene Fluoride-Co-Trifluoroethylene) Open
Poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-co-TrFE)) is an electroactive polymer with growing interest for applications in biomedical materials and flexible electronics. In this study, a solvent-free additive manufacturing techn…
View article: Melt Electrowriting of Poly(vinylidene Fluoride-Co-Trifluoroethylene)
Melt Electrowriting of Poly(vinylidene Fluoride-Co-Trifluoroethylene) Open
Poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-co-TrFE)) is an electroactive polymer with growing interest for applications in biomedical materials and flexible electronics. In this study, a solvent-free additive manufacturing techn…
View article: Hydraulic reactivity and cement formation of baghdadite
Hydraulic reactivity and cement formation of baghdadite Open
In this study, the hydraulic reactivity and cement formation of baghdadite (Ca 3 ZrSi 2 O 9 ) was investigated. The material was synthesized by sintering a mixture of CaCO 3 , SiO 2 , and ZrO 2 and then mechanically activated using a plane…
View article: Phase Conversion of Ice‐Templated α‐Tricalcium Phosphate Scaffolds into Low‐Temperature Calcium Phosphates with Anisotropic Open Porosity
Phase Conversion of Ice‐Templated α‐Tricalcium Phosphate Scaffolds into Low‐Temperature Calcium Phosphates with Anisotropic Open Porosity Open
The current study aims to extend the material platform for anisotropically structured calcium phosphates to low‐temperature phases such as calcium‐deficient hydroxyapatite (CDHA) or the secondary phosphates monetite and brushite. This is a…
View article: Setting Mechanism of a CDHA Forming α-TCP Cement Modified with Sodium Phytate for Improved Injectability
Setting Mechanism of a CDHA Forming α-TCP Cement Modified with Sodium Phytate for Improved Injectability Open
A calcium deficient hydroxyapatite (CDHA) forming cement with a bimodal grain size distribution, composed of α-TCP and fine grained CDHA at a weight ratio of 9:1, was modified by the addition of sodium phytate (IP6) in variable amounts ran…