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Recent Advances in Host‐Guest Supramolecular Hydrogels for Biomedical Applications

Von Wiley-VCH zur Verfügung gestellt

Host-guest supramolecular hydrogels exhibit superior self-healing, injectability and stimuli-responsiveness, due to the dynamic and reversible interactions. This paper provides an overview of the state-of-art developments in these smart soft materials for a wide range of biomedical applications, highlighting the innovative design strategies at molecular-level for achieving well-developed characteristics for specific purposes.


Abstract

The recognition-directed host-guest interaction is recognized as a valuable tool for creating supramolecular polymers. Functional hydrogels constructed through the dynamic and reversible host-guest complexation are endowed with a great many appealing features, such as superior self-healing, injectability, flexibility, stimuli-responsiveness and biocompatibility, which are crucial for biological and medicinal applications. With numerous topological structures and host-guest combinations established previously, recent breakthroughs in this area mostly focus on further improvement and fine-tuning of various properties for practical utilizations. The current contribution provides a comprehensive overview of the latest developments in host-guest supramolecular hydrogels, with a particular emphasis on the innovative molecular-level design strategies and hydrogel formation methodologies targeting at a wide range of active biomedical domains, including drug delivery, 3D printing, wound healing, tissue engineering, artificial actuators, biosensors, etc. Furthermore, a brief conclusion and discussion on the steps forward to bring these smart hydrogels to clinical practice is also presented.

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