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Bio-based glue created

Scientists, inspired by substances shellfish create to stick to surfaces, have developed a super strong adhesive that works under water. The bio-based glue performed better than 10 commercial adhesives when used to bond polished aluminium.

When compared with the five strongest commercial glues included in the study, the new adhesive performed better when bonding wood, Teflon and polished aluminium.

  1. It was the only adhesive of those tested that worked with wood and far out-performed the other adhesives when used to join Teflon.
  2. Mussels, barnacles, and oysters attach to rocks with apparent ease. In order to develop new materials able to bind within harsh environments, a biomimetic polymer that is modelled after the adhesive proteins of mussels.
  3. Mussels extend hair-like fibres that attach to surfaces using plaques of adhesive. Proteins in the glue contain the amino acid DOPA, which harbours the chemistry needed to provide strength and adhesion.
  4. Researchers inserted this chemistry of mussel proteins into a biomimetic polymer called poly (catechol-styrene), creating an adhesive by harnessing the chemistry of compounds called catechols, which are contained in DOPA.
  5. Shellfish,super strong adhesive, Teflon, Purdue University, wet bonding, marine biology,  biometric polymer, DOPA, chemistry, adhesion, catetchol styrene, strongest underwater adhesives, drilling down properties,  biological requirements, Science, Science news,  Proteins in the glue contain the amino acid DOPA, which harbours the chemistry needed to provide strength and adhesion.
  6. The new adhesive also proved to be about 17 times stronger than the natural adhesive produced by mussels.
  7. One explanation might be that the animals have evolved to produce adhesives that are only as strong as they need to be for their specific biological requirements.
  8. The natural glues might be designed to give way when the animals are hunted by predators, breaking off when pulled from a surface instead of causing injury to internal tissues.


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