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Investigators recently developed and evaluated an effective and scalable technique for producing soft polymer materials in a variety of structures, or “morphologies,” ranging from ribbons and nanoscale sheets to rods and branched particles. ....
Researchers merged micro- and nano-sized networks of the same materials harnessed from seaweed to create 3D-printable gels with improved and highly controlled properties. The printed jelly could have applications in biomedical materials think biological scaffolds for growing cells and soft robotics. Described in the journal Nature Communications, the findings show that these water-based gels called homocomposite hydrogels are both strong and flexible. They are composed of alginates chemical compounds found in seaweed and algae and commonly used as thickening agents and in wound dressings. Merging different-size scale networks of the same alginate together eliminates the fragility that can sometimes occur when differing materials are merged together in a hydrogel, says Orlin Velev, professor of chemical and biomolecular Engineering at North Carolina State University and corresponding author of the paper. ....
Credit: Orlin Velev, NC State University 3D-printable gels with improved and highly controlled properties can be created by merging micro- and nano-sized networks of the same materials harnessed from seaweed, according to new research from North Carolina State University. The findings could have applications in biomedical materials - think of biological scaffolds for growing cells - and soft robotics. Described in the journal Nature Communications, the findings show that these water-based gels - called homocomposite hydrogels - are both strong and flexible. They are composed of alginates - chemical compounds found in seaweed and algae that are commonly used as thickening agents and in wound dressings. ....
by Mick Kulikowski May 14, 2021 . RALEIGH – 3D-printable gels with improved and highly controlled properties can be created by merging micro- and nano-sized networks of the same materials harnessed from seaweed, according to new research from North Carolina State University. The findings could have applications in biomedical materials – think of biological scaffolds for growing cells – and soft robotics. Nature Communications, the findings show that these water-based gels – called homocomposite hydrogels – are both strong and flexible. They are composed of alginates – chemical compounds found in seaweed and algae that are commonly used as thickening agents and in wound dressings. Merging different-size scale networks of the same alginate together eliminates the fragility that can sometimes occur when differing materials are merged together in a hydrogel, says Orlin Velev, S. Frank and Doris Culberson Distinguished Professor of Chemical and Biomolecular E ....