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author:

Zhang, Xuzhi (Zhang, Xuzhi.) [1] | Wang, Xiaochun (Wang, Xiaochun.) [2] | Cheng, Hongrui (Cheng, Hongrui.) [3] | Zheng, Yuanhui (Zheng, Yuanhui.) [4] | Zhao, Jun (Zhao, Jun.) [5] | Qu, Keming (Qu, Keming.) [6]

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EI

Abstract:

The lack of analytical strategies to directly determine the bacteriostatic activity of nanomaterials in complex aqueous media (e.g., environmentally relevant scenarios) seriously hampers the harvest of reliable data for nanomaterial risk assessment. Here, we created an automated phenotypic method based on a developed multi-channel contactless conductometric sensor. Bacterial growth kinetics of E. coli and S. aureus were determined via on-line monitoring of conductivity changes in simple media (e.g., liquid LB broth) and complex media (e.g., relevant river water and seawater samples with diverse pH, salinity, conductivity, turbidity, chemical oxygen demand and total suspended solids). The high temporal resolution growth curves provide detailed information on the bacteria inhibition of the model nanomaterial - Au nanospheres, Au nanorods, Ag nanospheres and Ag nanocubes - at each growth stage, thus enabling users to directly obtain minimum inhibitory concentrations. The method highlights the advantages of universality, simplicity and affordability. It opens up possibilities for the development of a powerful analytical platform for researches in the field of nanoscience, e.g. to assess ecotoxicity of nanomaterials. © 2021 Elsevier B.V.

Keyword:

Chemical oxygen demand Escherichia coli Gold Growth kinetics Nanorods Nanospheres Nanostructured materials Risk assessment Risk perception Silver Solid solutions

Community:

  • [ 1 ] [Zhang, Xuzhi]Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao; 266071, China
  • [ 2 ] [Zhang, Xuzhi]Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao; 266071, China
  • [ 3 ] [Wang, Xiaochun]Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao; 266071, China
  • [ 4 ] [Cheng, Hongrui]College of Chemistry, Fuzhou University, Fuzhou; 350116, China
  • [ 5 ] [Zheng, Yuanhui]College of Chemistry, Fuzhou University, Fuzhou; 350116, China
  • [ 6 ] [Zhao, Jun]Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao; 266071, China
  • [ 7 ] [Qu, Keming]Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao; 266071, China
  • [ 8 ] [Qu, Keming]Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao; 266071, China

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Source :

Journal of Hazardous Materials

ISSN: 0304-3894

Year: 2021

Volume: 413

1 4 . 2 2 4

JCR@2021

1 2 . 2 0 0

JCR@2023

ESI HC Threshold:105

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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