水凝膠 HYDROGELS

水凝膠 HYDROGELS

水凝膠是由親水性高分子鏈組成的網絡，它可以在不溶解的情況下與大量的水結合。由于其成分的性質，主要是水，它具有很高的生物相容性。凝膠的聚合鏈可以被設計成對材料具有廣泛的性能，如環境響應、機械性能和化學性能。水凝膠為各種組織工程應用（細胞培養或細胞接種的三維支架、細胞包埋、納米顆粒等）的發展提供了非常有趣的平臺，并找到了新的微流體和個人診斷設備。這些水凝膠的發展需要表征其力學性能。

A hydrogel is constituted of a network of hydrophilic polymeric chains that can associate with large quantity of water without dissolving. Due to the nature of its composition, being mostly water, it has a high biocompatibility. The polymeric chains of the gel can be engineered to give a wide spectrum of capabilities to the material such as environmental response, mechanical properties and chemical properties. Hydrogels make very interesting platforms for the development of various tissue engineering applications (3D scaffold for cell culture or cell seeding, cell encapsulation, nanoparticles, etc.) and find their way to new microfluidics and personal diagnostic devices. The development of those hydrogels requires precise characterization of their mechanical properties.