水凝胶是高度交联的水溶胀亲水聚合物网络,具有良好的生物相容性,可作为药物载体和功能支架,在组织工程、再生医学和药物递送等领域具有广阔的应用前景。综述了近年来自愈性水凝胶的制备原理和自愈机制,如主客体相互作用、动态共价与非共价作用、金属-配体相互作用和亲疏水作用以及其作为药物载体、仿生支架在组织工程及再生医学方面对创伤修复、填充复杂组织缺陷并诱导再生的应用,指出了自愈性水凝胶目前存在的问题以及其作为药物递送载体所面临的挑战,对其未来临床应用前景进行了展望。
Hydrogel is a highly cross-linked water-swellable hydrophilic polymer network with good biocompatibility.It can be used as a drug carrier and functional scaffold,and has broad application prospects in the fields of tissue engineering,regenerative medicine and drug delivery.The preparation and self-healing mechanisms of self-healing hydrogels in recent years were mainly reviewed,such as:host-guest interaction,dynamic covalent and non-covalent interactions,metal-ligand interactions and hydrophobic interactions.The results of the application of drug carriers and biomimetic matrices in wound healing,filling complex tissue defects and inducing regeneration in tissue engineering and regenerative medicine were introduced,and expounded the current problems of self-healing hydrogels and their potential as drug delivery vehicles.The challenge was to look forward to its future clinical application prospects.
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基金资助
国家自然科学基金项目(21562014);贵州中烟科技项目(黔烟工技[2015]8号)