Cargando…

Effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms

The biofilm chemical and physical properties in engineered systems play an important role in governing pathogen transmission, fouling facilities, and corroding metal surfaces. Here, we investigated how simulated drinking water biofilm chemical composition, structure, and stiffness responded to the c...

Descripción completa

Detalles Bibliográficos
Autores principales: Shen, Yun, Huang, Pin Chieh, Huang, Conghui, Sun, Peng, Monroy, Guillermo L., Wu, Wenjing, Lin, Jie, Espinosa-Marzal, Rosa M., Boppart, Stephen A., Liu, Wen-Tso, Nguyen, Thanh H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6052100/
https://www.ncbi.nlm.nih.gov/pubmed/30038792
http://dx.doi.org/10.1038/s41522-018-0058-1
_version_ 1783340605593616384
author Shen, Yun
Huang, Pin Chieh
Huang, Conghui
Sun, Peng
Monroy, Guillermo L.
Wu, Wenjing
Lin, Jie
Espinosa-Marzal, Rosa M.
Boppart, Stephen A.
Liu, Wen-Tso
Nguyen, Thanh H.
author_facet Shen, Yun
Huang, Pin Chieh
Huang, Conghui
Sun, Peng
Monroy, Guillermo L.
Wu, Wenjing
Lin, Jie
Espinosa-Marzal, Rosa M.
Boppart, Stephen A.
Liu, Wen-Tso
Nguyen, Thanh H.
author_sort Shen, Yun
collection PubMed
description The biofilm chemical and physical properties in engineered systems play an important role in governing pathogen transmission, fouling facilities, and corroding metal surfaces. Here, we investigated how simulated drinking water biofilm chemical composition, structure, and stiffness responded to the common scale control practice of adjusting divalent ions and adding polyphosphate. Magnetomotive optical coherence elastography (MM-OCE), a tool developed for diagnosing diseased tissues, was used to determine biofilm stiffness in this study. MM-OCE, together with atomic force microscopy (AFM), revealed that the biofilms developed from a drinking water source with high divalent ions were stiffer compared to biofilms developed either from the drinking water source with low divalent ions or the water containing a scale inhibitor (a polyphosphate). The higher stiffness of biofilms developed from the water containing high divalent ions was attributed to the high content of calcium carbonate, suggested by biofilm composition examination. In addition, by examining the biofilm structure using optical coherence tomography (OCT), the highest biofilm thickness was found for biofilms developed from the water containing the polyphosphate. Compared to the stiff biofilms developed from the water containing high divalent ions, the soft and thick biofilms developed from the water containing polyphosphate will be expected to have higher detachment under drinking water flow. This study suggested that water chemistry could be used to predict the biofilm properties and subsequently design the microbial safety control strategies.
format Online
Article
Text
id pubmed-6052100
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-60521002018-07-23 Effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms Shen, Yun Huang, Pin Chieh Huang, Conghui Sun, Peng Monroy, Guillermo L. Wu, Wenjing Lin, Jie Espinosa-Marzal, Rosa M. Boppart, Stephen A. Liu, Wen-Tso Nguyen, Thanh H. NPJ Biofilms Microbiomes Article The biofilm chemical and physical properties in engineered systems play an important role in governing pathogen transmission, fouling facilities, and corroding metal surfaces. Here, we investigated how simulated drinking water biofilm chemical composition, structure, and stiffness responded to the common scale control practice of adjusting divalent ions and adding polyphosphate. Magnetomotive optical coherence elastography (MM-OCE), a tool developed for diagnosing diseased tissues, was used to determine biofilm stiffness in this study. MM-OCE, together with atomic force microscopy (AFM), revealed that the biofilms developed from a drinking water source with high divalent ions were stiffer compared to biofilms developed either from the drinking water source with low divalent ions or the water containing a scale inhibitor (a polyphosphate). The higher stiffness of biofilms developed from the water containing high divalent ions was attributed to the high content of calcium carbonate, suggested by biofilm composition examination. In addition, by examining the biofilm structure using optical coherence tomography (OCT), the highest biofilm thickness was found for biofilms developed from the water containing the polyphosphate. Compared to the stiff biofilms developed from the water containing high divalent ions, the soft and thick biofilms developed from the water containing polyphosphate will be expected to have higher detachment under drinking water flow. This study suggested that water chemistry could be used to predict the biofilm properties and subsequently design the microbial safety control strategies. Nature Publishing Group UK 2018-07-18 /pmc/articles/PMC6052100/ /pubmed/30038792 http://dx.doi.org/10.1038/s41522-018-0058-1 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Shen, Yun
Huang, Pin Chieh
Huang, Conghui
Sun, Peng
Monroy, Guillermo L.
Wu, Wenjing
Lin, Jie
Espinosa-Marzal, Rosa M.
Boppart, Stephen A.
Liu, Wen-Tso
Nguyen, Thanh H.
Effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms
title Effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms
title_full Effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms
title_fullStr Effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms
title_full_unstemmed Effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms
title_short Effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms
title_sort effect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6052100/
https://www.ncbi.nlm.nih.gov/pubmed/30038792
http://dx.doi.org/10.1038/s41522-018-0058-1
work_keys_str_mv AT shenyun effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT huangpinchieh effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT huangconghui effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT sunpeng effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT monroyguillermol effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT wuwenjing effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT linjie effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT espinosamarzalrosam effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT boppartstephena effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT liuwentso effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms
AT nguyenthanhh effectofdivalentionsandapolyphosphateoncompositionstructureandstiffnessofsimulateddrinkingwaterbiofilms