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Science China Materials

, Volume 62, Issue 6, pp 885–891 | Cite as

Encapsulation of live cells by metal-organic frameworks for viability protection

  • Chao Sun (孙超)
  • Lin Chang (常琳)
  • Ke Hou (侯珂)
  • Shaoqin Liu (刘绍琴)
  • Zhiyong Tang (唐智勇)Email author
Articles
  • 149 Downloads

Abstract

In this study, a yeast@ZIF-8 core–shell composite material was successfully synthesized under room temperature in aqueous solution. The ZIF-8 shell endowed the inner yeast cells with a considerably extended lifetime without any nutrients at 4°C. Compared with the bare yeast cells, most coated yeast cells were kept alive even when cultured in zymolyase solution for 3 h. Furthermore, the encapsulated yeast cells could be reactivated and regrown by dissolving the ZIF-8 shell with competitive coordination interactions.

Keywords

live cells ZIF-8 viability protection 

金属有机框架材料包覆活细胞以保持其代谢活性

摘要

在本文中, 沸石型金属有机框架材料ZIF-8在温和的条件下被成功包覆于活细胞酿酒酵母表面. ZIF-8壳层展示出对酿酒酵母细胞明显的保护作用. 与裸露酵母相比, 包覆酵母在4°C纯水中可以保持更长时间的代谢活性. 当包覆酵母和裸露酵母在酵母裂解酶存在的溶液中共同培养时, 包覆酵母仍然保持约80%的活性, 而裸露酵母则几乎全部死亡. 除此之外, 用EDTA将ZIF-8壳层溶解之后, 包覆的酵母仍然具有再生增殖能力, 且其生长曲线与裸露酵母类似.

Notes

Acknowledgements

This work was supported by the National Key Basic Research Program of China (2014CB931801 and 2016YFA0200700), the National Natural Science Foundation of China (2189038, 21721002 and 21475029), Frontier Science Key Project of Chinese Academy of Sciences (QYZDJ-SSW-SLH038), and K. C. Wong Education Foundation.

Supplementary material

40843_2018_9384_MOESM1_ESM.pdf (400 kb)
Encapsulation of live cells by metal-organic frameworks for viability protection

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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Chao Sun (孙超)
    • 1
  • Lin Chang (常琳)
    • 2
  • Ke Hou (侯珂)
    • 2
  • Shaoqin Liu (刘绍琴)
    • 3
  • Zhiyong Tang (唐智勇)
    • 1
    • 2
    Email author
  1. 1.School of Material Science and EngineeringHarbin Institute of TechnologyHarbinChina
  2. 2.CAS Key Lab of Nanosystem and Hierarchy FabricationNational Center for Nanoscience and TechnologyBeijingChina
  3. 3.State Key Laboratory of Urban Water Resource and EnvironmentHarbin Institute of TechnologyHarbinChina

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