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      Alternative screening method for analyzing the water samples through an electrical microfluidics chip with classical microbiological assay comparison of P. aeruginosa

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      Embargo Lift Date: 2022-11-01
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      Author(s)
      Bilican, İsmail
      Bahadır, T.
      Bilgin, K.
      Güler, Mustafa Tahsin
      Date
      2020
      Source Title
      Talanta
      Print ISSN
      0039-9140
      Publisher
      Elsevier
      Volume
      219
      Pages
      1 - 11
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Pseudomonas aeruginosa is a pathogenic bacterium in fresh water supplies that creates a risk for public health. Microbiological analysis of drinking water samples is time consuming and requires qualified personnel. Here we offer a screening system for rapid analysis of spring water that has the potential to be turned into a point-of-need system by means of simple mechanism. The test, which takes 1 h to complete, electrically interrogates the particles through a microfluidic chip suspended in the water sample. We tested the platform using water samples with micro beads and water samples spiked with P. aeruginosa at various concentrations. The mono disperse micro beads were used to evaluate the performance of the system. The results were verified by the gold standard membrane filtration method, which yielded a positive test result only for the P. aeruginosa spiked samples. Detection of 0–11 k bacteria in 30 μL samples was successfully completed in 1 h and compared with a conventional microbiological method. The presented method is a good candidate for a rapid, on-site, screening test that can result in a significant reduction in cost and analysis time compared to microbiological analyses routinely used in practice.
      Keywords
      Microfluidic chip
      Electrical detection
      P. aeruginosa
      Bacteria
      Water analysis
      Permalink
      http://hdl.handle.net/11693/75814
      Published Version (Please cite this version)
      https://dx.doi.org/10.1016/j.talanta.2020.121293
      Collections
      • Institute of Materials Science and Nanotechnology (UNAM) 2258
      • Nanotechnology Research Center (NANOTAM) 1179
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