Automatically showing microbial growth kinetics with a high-performance microbial growth analyzer
文献类型： 外文期刊
作者： Zhang, Xuzhi 1 ; Yang, Qianqian 1 ; Ma, Liangyu 1 ; Zhang, Dahai 2 ; Lin, Wentao 3 ; Schlensky, Nick 3 ; Cheng, Hongrui 4 ; Zheng, Yuanhui 4 ; Luo, Xiliang 5 ; Ding, Caifeng 5 ; Zhang, Yan 1 ; Hou, Xiangyi 1 ; Lu, Feng 1 ; Yan, Hua 1 ; Wang, Ruoju 2 ; Li, Chen-Zhong 6 ; Qu, Keming 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
2.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China
3.eDAQ Pty Ltd, 6 Doig Ave, Denistone East, NSW 2112, Australia
4.Fuzhou Univ, Coll Chem, Fuzhou 350116, Peoples R China
5.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China
6.Chinese Univ Hong Kong Shenzhen, Biosensors & Bioelect Ctr, Sch Med, Biomed Engn, Shenzhen 518172, Peoples R China
关键词： Capacitively coupled contactless conductivity; detector; High-performance microbial growth analyzer; Online monitoring; Microbial growth curve; Complex matrices; Practicability
期刊名称：BIOSENSORS & BIOELECTRONICS （ 影响因子：12.6； 五年影响因子：10.8 ）
ISSN： 0956-5663
年卷期： 2023 年 239 卷
页码：
收录情况： SCI
摘要： It is difficult to show microbial growth kinetics online when they grow in complex matrices. We presented a novel strategy to address this challenge by developing a high-performance microbial growth analyzer (HPMGA), which employed a unique 32-channel capacitively coupled contactless conductivity detector as a sensing element and fixed with a CellStatz software. It was capable of online showing accurate and repeatable growth curves of well-dispersed and bad-dispersed microbes, whether they grew in homogeneous simple culture broth or heterogeneous complex matrices. Moreover, it could automatically report key growth kinetics parameters. In comparison to optical density (OD), plate counting and broth microdilution (BMD) methods, we demonstrated its practicability in five scenarios: 1) the illustration of the growth, growth rate, and acceleration curves of Escherichia coli (E. coli); 2) the antimicrobial susceptibility testing (AST) of Oxacillin against Staphylococcus aureus (S. aureus); 3) the determination of Ag nanoparticle toxicity on Providencia rettgeri (P. rettgeri); 4) the characterization of milk fermentation; and 5) the enumeration of viable pathogenic Vibrio in shrimp body. Results highlighted that the HPMGA method had the advantages of universality and effectivity. This technology would significantly facilitate the routine analysis of microbial growth in many fields (biology, medicine, clinic, life, food, environment, and ecology), paving an avenue for microbiologists to achieve research goals that have been inhibited for years due to a lack of practical analytical methods.
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