Bio‐Macromolecular Surface Coatings for Autohesive, Transparent, Elastomeric Foils

Thin materials made from elastomeric polymers such as polydimethylsiloxane (PDMS) and polyurethane (PU) can be both, compliant resilient. Their mechanical robustness flexibility will make them great candidates for applications in the human body where space is limited repeated deformations occur. Nonetheless, current medical of foil-like products are mainly restricted to inflatable balloon parts stents or intubation tubes. Here, a key limiting factor autohesive behavior those foils, that is, their propensity stick themselves. This property impedes handling processing also interfere with designated tasks foils. To mitigate this undesired behavior, different bio-macromolecular coatings applied here assess influence on flexibility, transparency materials. A non-covalent, dopamine-assisted coating approach compared covalent strategy employing carbodiimide chemistry investigated anionic cationic macromolecules top layers. The results show especially carbodiimide-mediated mucin efficiently suppress foils while maintaining material. Thus, not only broaden application range foil-based devices but may prove beneficial soft robotics.