COMPOSITIONS FOR SALTWATER-STABLE HYDROGEL ADHESIVES AND METHODS OF USE THEREOF
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United States of America
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Mar 6, 2025
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Aug 30, 2024
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Aug 30, 2024
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Abstract
Compositions of saltwater-stable adhesive hydrogels are provided, as well as methods of use thereof in adhesion, drug delivery, antibiotic delivery, surface coating, and antifouling applications. Disclosed copolymer complexes exhibit reversible ionic strength-based solubility between a soluble complex and an insoluble hydrogel, and include a first polynorbornene (PNB)-based bottlebrush copolymer including a plurality of β-cyclodextrin (β-CD)-terminated oligoethylene glycol sidechains and a second PNB-based bottlebrush copolymer including a plurality of positively charged adamantane (Ad)-terminated oligoviologen sidechains. In some embodiments, the second PNB-based bottlebrush copolymer further includes at least one porphyrin-terminated sidechain and/or has at least one electrostatically loaded, negatively charged therapeutic drug.
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