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Bio-inspired artificial shells protect living bacterial cellsvia biomimetic mineralization
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Yingling ZHENG1, Yu LIU1, Xin XIE1, Meiling SHI1, Wen XIE1, Sa ZENG2, Xiaoxue ZENG2, Tao MENG1, *
Acta Microbiologica Sinica | 2024, 64(6) : 2133 - 2143
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Acta Microbiologica Sinica | 2024, 64(6): 2133-2143
• Geomicrobiological Applications •
Bio-inspired artificial shells protect living bacterial cellsvia biomimetic mineralization
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Yingling ZHENG1, Yu LIU1, Xin XIE1, Meiling SHI1, Wen XIE1, Sa ZENG2, Xiaoxue ZENG2, Tao MENG1, *
Affiliations
  • 1 School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
  • 2 Guangzhou Ridgepole Biological Technology Co., Ltd., Guangzhou 510800, Guangdong, China
Published: 2024-06-04 doi: 10.13343/j.cnki.wsxb.20230492
Outline
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[Objective] Bio-inspired artificial mineral shells are used to protect living bacterial cells. [Methods] Bacterial cells were encapsulated in firm and intact mineral shells, where the limited physical space and substance exchange induced the dormancy of living bacteria to decrease the viability loss during long-term preservation and even in extreme environments. Moreover, acids can erode the shells to reactivate the bacteria. [Results] Compared with the un-mineralization treatment (EcN), the mineralization treatment (EcN@CaCO3) increased the bacterial viability by a maximum of 262 folds in a 32-day storage experiment and the survival rate by 837, 171, 59.1, and 729.7 folds at pH 2.5, pH 12.0, 80 ℃, and in the presence of an antibiotic, respectively. [Conclusion] We employed biomimetic mineralization to improve the stability of bacterial cells in storage, which can provide a research basis for the application of microorganisms in environmental engineering, food production, and biomedical engineering.

bacteria  /  bioinspired  /  biomimetic mineralization  /  dormancy and activation  /  tolerance
Yingling ZHENG, Yu LIU, Xin XIE, Meiling SHI, Wen XIE, Sa ZENG, Xiaoxue ZENG, Tao MENG. Bio-inspired artificial shells protect living bacterial cellsvia biomimetic mineralization[J]. Acta Microbiologica Sinica, 2024 , 64 (6) : 2133 -2143 . DOI: 10.13343/j.cnki.wsxb.20230492
Funding
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  • National Natural Science Foundation of China(22378336)
  • National Natural Science Foundation of China(22204130)
  • Science and Technology Program of Sichuan Province(2020YFG0092)
  • Science and Technology Program of Sichuan Province(2021YFN0129)
  • Fundamental Research Funds for the Central Universities(2682021ZTPY031)
  • Fundamental Research Funds for the Central Universities(2682021CX087)
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Year 2024 volume 64 Issue 6
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135
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Article Info
doi: 10.13343/j.cnki.wsxb.20230492
  • Receive Date：2023-07-24
  • Online Date：2026-03-19
  • Published：2024-06-04
Article Data
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History
  • Received：2023-07-24
  • Accepted：2023-10-17
Funding
National Natural Science Foundation of China(22378336)
National Natural Science Foundation of China(22204130)
Science and Technology Program of Sichuan Province(2020YFG0092)
Science and Technology Program of Sichuan Province(2021YFN0129)
Fundamental Research Funds for the Central Universities(2682021ZTPY031)
Fundamental Research Funds for the Central Universities(2682021CX087)
Affiliations
    1 School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
    2 Guangzhou Ridgepole Biological Technology Co., Ltd., Guangzhou 510800, Guangdong, China

Corresponding:

*MENG Tao, E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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