Charles de Kergariou
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View article: The Immobilization of Hyaluronic Acid in 3D Hydrogel Scaffolds Modulates Macrophage Polarization
The Immobilization of Hyaluronic Acid in 3D Hydrogel Scaffolds Modulates Macrophage Polarization Open
Macrophages are key modulators of immunity, tissue homeostasis and disease development. As our understanding of macrophage biology and their tissue‐specific behaviors grows the necessity to model macrophages within a 3D biomimetic environm…
View article: Effective Material Stiffness in Curved Actuators
Effective Material Stiffness in Curved Actuators Open
This study presents a new method for measuring the effective stiffness of curved actuators. Actuators are loaded into tension, and analytical mechanical equilibrium formulations are used to determine the stress along the actuator. A new me…
View article: Mechanics of bio-based uniaxially thermoformed polyurethane foams with zero and negative Poisson’s ratio
Mechanics of bio-based uniaxially thermoformed polyurethane foams with zero and negative Poisson’s ratio Open
Uniaxial thermoforming compression is a promising technique for producing Zero and Negative Poisson’s Ratio (ZPR/NPR) open-cell foams. It allows for faster, easier, and more scalable production. The sustainability credentials of this metho…
View article: Hygromnemics: Programmable Material Memory Matter Actuators via Wet Pre‐Constraining
Hygromnemics: Programmable Material Memory Matter Actuators via Wet Pre‐Constraining Open
Hygromnemic actuators that store shape memory within their dry structure using a pre‐constraining mechanism activated by humidity is introduced. Actuators are pre‐constrained for various durations at a given relative humidity level to prog…
View article: Poligromorph Materials: Shape Morphing Functional Polyvinyl Alcohol/Maleic Anhydride Ethylene‐Propylene/Carbon Composites in Aqueous and Hydrocarbon‐Based Media
Poligromorph Materials: Shape Morphing Functional Polyvinyl Alcohol/Maleic Anhydride Ethylene‐Propylene/Carbon Composites in Aqueous and Hydrocarbon‐Based Media Open
Hygromorphic materials and composites adjust their shape and curvature in response to changes in relative humidity, similar to the pinecone scales existing in nature. This work introduces a new class of poligromorphic materials‐composites …
View article: Low-velocity impact of castor oil-based rigid polyurethane foams: Experiments, microstructure effects and constitutive modelling
Low-velocity impact of castor oil-based rigid polyurethane foams: Experiments, microstructure effects and constitutive modelling Open
Rigid polyurethane foams (RPUFs) are widely used in impact protection applications due to their tunable mechanical properties. Recently, RPUFs derived from bio-based sources such as castor oil have been investigated as a greener and more s…
View article: Generalisation of the yield stress measurement in three point bending collapse tests: application to 3D printed flax fibre reinforced hydrogels
Generalisation of the yield stress measurement in three point bending collapse tests: application to 3D printed flax fibre reinforced hydrogels Open
This paper describes the extrusion pressure’s effect on composite hydrogel inks’ filaments subjected to three point bending collapse tests. The composite considered in this work consists of an alginate-poloxamer hydrogel reinforced with fl…
View article: Rigid polyurethane foams from commercial castor oil resins
Rigid polyurethane foams from commercial castor oil resins Open
Rigid polyurethane foams (RPUFs) are among the most used polymeric materials due to their tailorable properties. Greener and biobased polyol sources for synthesising RPUFs have been recently prototyped because of the ever-growing demand fo…
View article: The Immobilization of Hyaluronic Acid in 3D Hydrogel Scaffolds Modulates Macrophage Polarization
The Immobilization of Hyaluronic Acid in 3D Hydrogel Scaffolds Modulates Macrophage Polarization Open
Macrophages are key modulators of immunity, tissue homeostasis and disease development. As our understanding of macrophage biology and their tissue specific behaviors grow the necessity to model macrophages within a 3D biomimetic environme…
View article: Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential
Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential Open
A new 3D bioprinted biomaterial, with flax fiber-reinforced alginate hydrogel, is developed. The study assesses the impact of flax fibers on 3D printing, mechanical, 4D printing, and geometric properties of the composite.
View article: Correction: Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential
Correction: Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential Open
Correction for ‘Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential’ by Charles de Kergariou et al. , Soft Matter , 2024, 20 , 4021–4034, https://doi.org/10.1039/D4SM00135D.
View article: The Design of 4D‐Printed Hygromorphs: State‐of‐the‐Art and Future Challenges
The Design of 4D‐Printed Hygromorphs: State‐of‐the‐Art and Future Challenges Open
In recent years, 4D printing has allowed the rapid development of new concepts of multifunctional/adaptive structures. The 4D printing technology makes it possible to generate new shapes and/or property‐changing capabilities by combining s…
View article: Investigating the Effect of Relative Humidity on the Mechanics and Dynamics of Open‐Cell Polyurethane Auxetic Foams
Investigating the Effect of Relative Humidity on the Mechanics and Dynamics of Open‐Cell Polyurethane Auxetic Foams Open
This work describes a series of investigations carried out on sets of pristine and auxetic (negative Poisson's ratio (NPR)) open‐cell polyurethane foams subjected to relative humidity (RH) conditioning ranging from 9% to 92% at room temper…
View article: Design of 3D and 4D printed continuous fibre composites via an evolutionary algorithm and voxel-based Finite Elements: Application to natural fibre hygromorphs
Design of 3D and 4D printed continuous fibre composites via an evolutionary algorithm and voxel-based Finite Elements: Application to natural fibre hygromorphs Open
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