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A Low-Cost Open Source Device for Cell Microencapsulation
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DOI：10.3390/ma13225090.png)
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摘要
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Microencapsulation is a widely studied cell therapy and tissue bioengineering technique, since it is capable of creating an immune-privileged site, protecting encapsulated cells from the host immune system. Several polymers have been tested, but sodium alginate is in widespread use for cell encapsulation applications, due to its low toxicity and easy manipulation. Different cell encapsulation methods have been described in the literature using pressure differences or electrostatic changes with high cost commercial devices (about 30,000 US dollars). Herein, a low-cost device (about 100 US dollars) that can be created by commercial syringes or 3D printer devices has been developed. The capsules, whose diameter is around 500 mu m and can decrease or increase according to the pressure applied to the system, is able to maintain cells viable and functional. The hydrogel porosity of the capsule indicates that the immune system is not capable of destroying host cells, demonstrating that new studies can be developed for cell therapy at low cost with microencapsulation production. This device may aid pre-clinical and clinical projects in low- and middle-income countries and is lined up with open source equipment devices.
Keyword:
alginate
3D printer
microencapsulation
cell transplantation
cell therapy
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Effect of the alginate composition on the biocompatibility of alginate-polylysine microcapsules藻酸盐组成对藻酸盐-聚赖氨酸微胶囊生物相容性的影响.png)
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