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The Application of Impedance Spectroscopy for Pseudomonas Biofilm Monitoring during Phage Infection
Bacterial biofilm prevention and eradication are common treatment problems, hence there is a need for advanced and precise experimental methods for its monitoring. Bacterial resistance to antibiotics has resulted in an interest in using a natural bacterial enemy—bacteriophages. In this study, we pre...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7232529/ https://www.ncbi.nlm.nih.gov/pubmed/32272740 http://dx.doi.org/10.3390/v12040407 |
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author | Guła, Grzegorz Szymanowska, Paulina Piasecki, Tomasz Góras, Sylwia Gotszalk, Teodor Drulis-Kawa, Zuzanna |
author_facet | Guła, Grzegorz Szymanowska, Paulina Piasecki, Tomasz Góras, Sylwia Gotszalk, Teodor Drulis-Kawa, Zuzanna |
author_sort | Guła, Grzegorz |
collection | PubMed |
description | Bacterial biofilm prevention and eradication are common treatment problems, hence there is a need for advanced and precise experimental methods for its monitoring. Bacterial resistance to antibiotics has resulted in an interest in using a natural bacterial enemy—bacteriophages. In this study, we present the application of quartz tuning forks (QTF) as impedance sensors to determine in real-time the direct changes in Pseudomonas aeruginosa PAO1 biofilm growth dynamics during Pseudomonas phage LUZ 19 treatment at different multiplicities of infection (MOI). The impedance of the electric equivalent circuit (EEC) allowed us to measure the series resistance (Rs) corresponding to the growth-medium resistance (planktonic culture changes) and the conductance (G) corresponding to the level of QTF sensor surface coverage by bacterial cells and the extracellular polymer structure (EPS) matrix. It was shown that phage impacts on sessile cells (G dynamics) was very similar in the 10-day biofilm development regardless of applied MOI (0.1, 1 or 10). The application of phages at an early stage (at the sixth h) and on three-day biofilm caused a significant slowdown in biofilm dynamics, whereas the two-day biofilm turned out to be insensitive to phage infection. We observed an inhibitory effect of phage infection on the planktonic culture (Rs dynamics) regardless of the MOI applied and the time point of infection. Moreover, the Rs parameter made it possible to detect PAO1 population regrowth at the latest time points of incubation. The number of phage-insensitive forms reached the level of untreated culture at around the sixth day of infection. We conclude that the proposed impedance spectroscopy technique can be used to measure the physiological changes in the biofilm matrix composition, as well as the condition of planktonic cultures in order to evaluate the activity of anti-biofilm compounds. |
format | Online Article Text |
id | pubmed-7232529 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-72325292020-05-22 The Application of Impedance Spectroscopy for Pseudomonas Biofilm Monitoring during Phage Infection Guła, Grzegorz Szymanowska, Paulina Piasecki, Tomasz Góras, Sylwia Gotszalk, Teodor Drulis-Kawa, Zuzanna Viruses Article Bacterial biofilm prevention and eradication are common treatment problems, hence there is a need for advanced and precise experimental methods for its monitoring. Bacterial resistance to antibiotics has resulted in an interest in using a natural bacterial enemy—bacteriophages. In this study, we present the application of quartz tuning forks (QTF) as impedance sensors to determine in real-time the direct changes in Pseudomonas aeruginosa PAO1 biofilm growth dynamics during Pseudomonas phage LUZ 19 treatment at different multiplicities of infection (MOI). The impedance of the electric equivalent circuit (EEC) allowed us to measure the series resistance (Rs) corresponding to the growth-medium resistance (planktonic culture changes) and the conductance (G) corresponding to the level of QTF sensor surface coverage by bacterial cells and the extracellular polymer structure (EPS) matrix. It was shown that phage impacts on sessile cells (G dynamics) was very similar in the 10-day biofilm development regardless of applied MOI (0.1, 1 or 10). The application of phages at an early stage (at the sixth h) and on three-day biofilm caused a significant slowdown in biofilm dynamics, whereas the two-day biofilm turned out to be insensitive to phage infection. We observed an inhibitory effect of phage infection on the planktonic culture (Rs dynamics) regardless of the MOI applied and the time point of infection. Moreover, the Rs parameter made it possible to detect PAO1 population regrowth at the latest time points of incubation. The number of phage-insensitive forms reached the level of untreated culture at around the sixth day of infection. We conclude that the proposed impedance spectroscopy technique can be used to measure the physiological changes in the biofilm matrix composition, as well as the condition of planktonic cultures in order to evaluate the activity of anti-biofilm compounds. MDPI 2020-04-07 /pmc/articles/PMC7232529/ /pubmed/32272740 http://dx.doi.org/10.3390/v12040407 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Guła, Grzegorz Szymanowska, Paulina Piasecki, Tomasz Góras, Sylwia Gotszalk, Teodor Drulis-Kawa, Zuzanna The Application of Impedance Spectroscopy for Pseudomonas Biofilm Monitoring during Phage Infection |
title | The Application of Impedance Spectroscopy for Pseudomonas Biofilm Monitoring during Phage Infection |
title_full | The Application of Impedance Spectroscopy for Pseudomonas Biofilm Monitoring during Phage Infection |
title_fullStr | The Application of Impedance Spectroscopy for Pseudomonas Biofilm Monitoring during Phage Infection |
title_full_unstemmed | The Application of Impedance Spectroscopy for Pseudomonas Biofilm Monitoring during Phage Infection |
title_short | The Application of Impedance Spectroscopy for Pseudomonas Biofilm Monitoring during Phage Infection |
title_sort | application of impedance spectroscopy for pseudomonas biofilm monitoring during phage infection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7232529/ https://www.ncbi.nlm.nih.gov/pubmed/32272740 http://dx.doi.org/10.3390/v12040407 |
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