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Photoacoustic Flow Cytometry Using Functionalized Microspheres for Selective Detection of Bacteria
Photoacoustic flow cytometry is a method to detect rare analytes in fluids. We developed photoacoustic flow cytometry to detect pathological cells in body fluids, such as circulating tumor cells or bacteria in blood. In order to induce specific optical absorption in bacteria, we use modified bacteri...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10057399/ https://www.ncbi.nlm.nih.gov/pubmed/36984980 http://dx.doi.org/10.3390/mi14030573 |
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author | Edgar, Robert H. Samson, Anie-Pier Kocsis, Tori Viator, John A. |
author_facet | Edgar, Robert H. Samson, Anie-Pier Kocsis, Tori Viator, John A. |
author_sort | Edgar, Robert H. |
collection | PubMed |
description | Photoacoustic flow cytometry is a method to detect rare analytes in fluids. We developed photoacoustic flow cytometry to detect pathological cells in body fluids, such as circulating tumor cells or bacteria in blood. In order to induce specific optical absorption in bacteria, we use modified bacteriophage that precisely target bacterial species or subspecies for rapid identification. In order to reduce detection variability and to halt the lytic lifescycle that results in lysis of the bacteria, we attached dyed latex microspheres to the tail fibers of bacteriophage that retained the bacterial recognition binding sites. We tested these microsphere complexes using Salmonella enterica (Salmonella) and Escherichia coli (E. coli) bacteria and found robust and specific detection of targeted bacteria. In our work we used LT2, a strain of Salmonella, against K12, a strain of E. coli. Using Det7, a bacteriophage that binds to LT2 and not to K12, we detected an average of [Formula: see text] of LT2 versus [Formula: see text] of K12 using red microspheres and [Formula: see text] of LT2 versus [Formula: see text] of K12 using blue microspheres. These results confirmed our ability to selectively detect bacterial species using photoacoustic flow cytometry. |
format | Online Article Text |
id | pubmed-10057399 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-100573992023-03-30 Photoacoustic Flow Cytometry Using Functionalized Microspheres for Selective Detection of Bacteria Edgar, Robert H. Samson, Anie-Pier Kocsis, Tori Viator, John A. Micromachines (Basel) Article Photoacoustic flow cytometry is a method to detect rare analytes in fluids. We developed photoacoustic flow cytometry to detect pathological cells in body fluids, such as circulating tumor cells or bacteria in blood. In order to induce specific optical absorption in bacteria, we use modified bacteriophage that precisely target bacterial species or subspecies for rapid identification. In order to reduce detection variability and to halt the lytic lifescycle that results in lysis of the bacteria, we attached dyed latex microspheres to the tail fibers of bacteriophage that retained the bacterial recognition binding sites. We tested these microsphere complexes using Salmonella enterica (Salmonella) and Escherichia coli (E. coli) bacteria and found robust and specific detection of targeted bacteria. In our work we used LT2, a strain of Salmonella, against K12, a strain of E. coli. Using Det7, a bacteriophage that binds to LT2 and not to K12, we detected an average of [Formula: see text] of LT2 versus [Formula: see text] of K12 using red microspheres and [Formula: see text] of LT2 versus [Formula: see text] of K12 using blue microspheres. These results confirmed our ability to selectively detect bacterial species using photoacoustic flow cytometry. MDPI 2023-02-28 /pmc/articles/PMC10057399/ /pubmed/36984980 http://dx.doi.org/10.3390/mi14030573 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Edgar, Robert H. Samson, Anie-Pier Kocsis, Tori Viator, John A. Photoacoustic Flow Cytometry Using Functionalized Microspheres for Selective Detection of Bacteria |
title | Photoacoustic Flow Cytometry Using Functionalized Microspheres for Selective Detection of Bacteria |
title_full | Photoacoustic Flow Cytometry Using Functionalized Microspheres for Selective Detection of Bacteria |
title_fullStr | Photoacoustic Flow Cytometry Using Functionalized Microspheres for Selective Detection of Bacteria |
title_full_unstemmed | Photoacoustic Flow Cytometry Using Functionalized Microspheres for Selective Detection of Bacteria |
title_short | Photoacoustic Flow Cytometry Using Functionalized Microspheres for Selective Detection of Bacteria |
title_sort | photoacoustic flow cytometry using functionalized microspheres for selective detection of bacteria |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10057399/ https://www.ncbi.nlm.nih.gov/pubmed/36984980 http://dx.doi.org/10.3390/mi14030573 |
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