A Cytoprotective and Degradable Metal-Polyphenol Nanoshell for Single-Cell Encapsulation
- 주제(키워드) artificial spores , cytoprotection , encapsulation , organic-inorganic hybrid composites , tannic acid
- 주제(기타) Chemistry, Multidisciplinary
- 등재 SCIE, SCOPUS
- 발행기관 WILEY-V C H VERLAG GMBH
- 발행년도 2014
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000161864
- 본문언어 영어
- Published As http://dx.doi.org/10.1002/anie.201405905
초록/요약
Single-cell encapsulation promises the cytoprotection of the encased cells against lethal stressors, reminiscent of the sporulation process in nature. However, the development of a cytocompatible method for chemically mimicking the germination process (i.e., shell degradation on-demand) has been elusive, despite the shell degradation being pivotal for the practical use of functional cells as well as for single cell-based biology. We report that an artificial shell, composed of tannic acid (TA) and Fe-III, on individual Saccharomyces cerevisiae controllably degrades on-demand, while protecting the yeast from multiple external aggressors, including UV-C irradiation, lytic enzymes, and silver nanoparticles. Cell division is suppressed by the TA-Fe-III shell, but restored fully upon shell degradation. The formation of a TA-Fe-III shell would provide a versatile tool for achieving the chemical version of sporulation and germination.
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