Bioinspired Underwater Adhesives by Using the Supramolecular Toolbox
TL;DR: The versatile interactions used in adhesives secreted by sandcastle worms and mussels are explored and the variety and combinations of interactions that can be used in the design of new adhesive systems are highlighted.
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Abstract: Nature has developed protein-based adhesives whose underwater performance has attracted much research attention over the last few decades. The adhesive proteins are rich in catechols combined with amphiphilic and ionic features. This combination of features constitutes a supramolecular toolbox, to provide stimuli-responsive processing of the adhesive, to secure strong adhesion to a variety of surfaces, and to control the cohesive properties of the material. Here, the versatile interactions used in adhesives secreted by sandcastle worms and mussels are explored. These biological principles are then put in a broader perspective, and synthetic adhesive systems that are based on different types of supramolecular interactions are summarized. The variety and combinations of interactions that can be used in the design of new adhesive systems are highlighted.
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Citations
Plant-inspired adhesive and tough hydrogel based on Ag-Lignin nanoparticles-triggered dynamic redox catechol chemistry
Donglin Gan,Wensi Xing,Lili Jiang,Ju Fang,Cancan Zhao,Fuzeng Ren,Liming Fang,Kefeng Wang,Xiong Lu +8 more
TL;DR: The authors report on the addition of silver-Lignin nanoparticles as a dynamic catechol redox system to maintaincatechol/quinone balance, making a reusable, antibacterial bioadhesive.
Catechol-functionalized hydrogels: biomimetic design, adhesion mechanism, and biomedical applications.
Wei Zhang,Ruixing Wang,ZhengMing Sun,Xiangwei Zhu,Qiang Zhao,Tengfei Zhang,Aleksander Cholewinski,Fut K. Yang,Boxin Zhao,Rattapol Pinnaratip,Pegah Kord Forooshani,Bruce P. Lee +11 more
TL;DR: This review is structured to give a comprehensive overview of adhesive hydrogels starting with the fundamental challenges of underwater adhesion, followed by synthetic approaches and fabrication techniques, as well as characterization methods, and their practical applications in tissue repair and regeneration, antifouling and antimicrobial applications, drug delivery, and cell encapsulation and delivery.
661
Functional Supramolecular Polymeric Networks: The Marriage of Covalent Polymers and Macrocycle-Based Host-Guest Interactions
Danyu Xia,Pi Wang,Xiaofan Ji,Niveen M. Khashab,Jonathan L. Sessler,Jonathan L. Sessler,Feihe Huang,Feihe Huang +7 more
TL;DR: This Review summarizes advances made in the area of functional SPNs, with a focus on original literature reports appearing in the past five years, and is organized according to the key macrocycle-based host-guest interactions used to produce various SPNs.
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Exploring a naturally tailored small molecule for stretchable, self-healing, and adhesive supramolecular polymers
TL;DR: A simple and effective synthesis route is reported to transform a small molecule of biological origin, thioctic acid, into a high-performance supramolecular polymeric material, which combines processability, ultrahigh stretchability, rapid self-healing ability, and reusable adhesivity to surfaces.
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