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Nanoparticles Fill Hydrogel Medical Adhesives with Potential

Andy Extance – May 31, 2011

Bandages that do not stay stuck or that are painful to remove blatantly demonstrate where the adhesives that they use need to improve. Hydrogel PSAs have been suggested as an option to avoid debonding in moist conditions, but typically have poor mechanical properties. Now, researchers have developed composite hydrogels that use polystyrene nanoparticles in acrylic copolymers as a snake-cage structure that provide good performance. Tailoring the material's composition also controls its adhesion, suggesting that it might also be able to avoid damaging skin on removal.

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