Great strides have been made in the area of hydrogel science since the first hydrogels were described in the 1960s. Hydrogelation occurs in response to a physical or chemical stimulus, such as temperature, pH, electric or magnetic field, enzymatic modification, light and others. These three-dimensional networks consisting of mainly water molecules represent a unique class of materials, with many applications including cell therapeutics, cartilage/bone regeneration, sustained drug release and drug delivery systems, tissue engineering, 3D bioprinting and extracellular culture medium (ECM) for cancer cells, stem cells and neuronal cells. ChemBioGels 2021 will feature on-going work in the area of hydrogel science.
Great strides have been made in the area of hydrogel science since the first hydrogels were described in the 1960s. Hydrogelation occurs in response to a physical or chemical stimulus, such as temperature, pH, electric or magnetic field, enzymatic modification, light and others. These three-dimensional networks consisting of mainly water molecules represent a unique class of materials, with many applications including cell therapeutics, cartilage/bone regeneration, sustained drug release and drug delivery systems, tissue engineering, 3D bioprinting and extracellular culture medium (ECM) for cancer cells, stem cells and neuronal cells. ChemBioGels 2021 will feature on-going work in the area of hydrogel science.
Great strides have been made in the area of hydrogel science since the first hydrogels were described in the 1960s. Hydrogelation occurs in response to a physical or chemical stimulus, such as temperature, pH, electric or magnetic field, enzymatic modification, light and others. These three-dimensional networks consisting of mainly water molecules represent a unique class of materials, with many applications including cell therapeutics, cartilage/bone regeneration, sustained drug release and drug delivery systems, tissue engineering, 3D bioprinting and extracellular culture medium (ECM) for cancer cells, stem cells and neuronal cells. ChemBioGels 2021 will feature on-going work in the area of hydrogel science.
Professor Ehud Gazit
Professor Ehud Gazit
Dr. Loic Hilliou
Structure-elastic properties relationships in gelling carrageenans: where do we stand?
Short Abstract:
Gelling carrageenans are polysaccharides extracted from the Gigartinales order of red algae. These are additives used in the food industry and more recently in pharmaceutics for texturizing, stabilizing or gelling various formulations. Although a consensual gel mechanism has been reached which encompasses a coil-to-helix transition followed by the self-assembling of helices in a network, the structure-elastic relationships in the network are still to be clearly established. This paper reviews the reports where carrageenan gel structures have been systematically compared with gel elastic properties. The focus is on the sizes documented for structural units such as (double or single) helices, strands, aggregates, voids or network meshes, as well as on the reported linear and nonlinear elastic characteristics. Then the insufficient rationalization of carrageenan gel elasticity by models which take on board mechanically relevant structural features is underlined. After introducing selected linear and nonlinear elastic models, preliminary results comparing such models to structural and reological data are presented, and a roadmap for future studies is proposed
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Short CV:
Loic Hilliou is a member of the Institute for Polymers and Composites ate the University of Minho, Portugal. As a soft matter scientist, his research interests focus on understanding the relationships between products final properties and the structures induced during the processing of materials used to manufacture these products. Keywords which better define his areas of expertise are rheology, rheo-optics, extrusion, in-process monitoring, biopolymers and bioplastics, food packaging, film blowing, hydrogels and nanocomposites.