期刊
ADVANCED DRUG DELIVERY REVIEWS
卷 65, 期 11-12, 页码 1533-1555出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.addr.2013.07.021
关键词
Hydrogels; Alginate; Cell encapsulation; Microparticles; Microfibers; Microfluidics
The entrapment of cells into hydrogel microdevice in form of microparticles or microfibers is one of the most appealing and useful tools for cell-based therapy and tissue engineering. Cell encapsulation procedures allow the immunoisolation of cells from the surrounding environment, after their transplantation and the maintenance of the normal cellular physiology. Factors affecting the efficacy of microdevices, which include size, size distribution, morphology, and porosity are all highly dependent on the method of preparation. In this respect, microfluidic based methods offer a promising strategy to fabricate highly uniform and morphologically controlled microdevices with tunable chemical and mechanical properties. In the current review, various cell microencapsulation procedures, based on a microfluidics, are critically analyzed with a special focus on the effect of the procedure on the morphology, viability and functions of the embedded cells. Moreover, a brief introduction about the optimal characteristics of microdevice intended for cell encapsulation, together with the currently used materials for the production is reported. A further challenging application of microfluidics for the development of living microchip is also presented. Finally, the limitations, challenging and future work on the microfluidic approach are also discussed. (C) 2013 Elsevier B.V. All rights reserved.
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