Interference in adhesion of bacteria and yeasts isolated from explanted voice prostheses to silicone rubber by rhamnolipid biosurfactants

The effects and extent of adhesion of four different bacterial and two yeast strains isolated from explanted voice prostheses to silicone rubber with and without an adsorbed rhamnolipid biosurfactant layer obtained from Pseudomonasaeruginosa DS10-129 was studied. The ability of rhamnolipid biosurfac...

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Veröffentlicht in:Journal of applied microbiology 2006-03, Vol.100 (3), p.470-480
Hauptverfasser: Rodrigues, L.R, Banat, I.M, van der Mei, H.C, Teixeira, J.A, Oliveira, R
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container_start_page 470
container_title Journal of applied microbiology
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creator Rodrigues, L.R
Banat, I.M
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Teixeira, J.A
Oliveira, R
description The effects and extent of adhesion of four different bacterial and two yeast strains isolated from explanted voice prostheses to silicone rubber with and without an adsorbed rhamnolipid biosurfactant layer obtained from Pseudomonasaeruginosa DS10-129 was studied. The ability of rhamnolipid biosurfactant to inhibit adhesion of micro-organisms to silicone rubber was investigated in a parallel-plate flow chamber. The anti-adhesive activity of the biosurfactant at different concentrations was significant against all the strains and depended on the micro-organism tested. The results showed an effective reduction in the initial deposition rates, and the number of bacterial cells adhering after 4 h, for all micro-organisms tested at the 4 g l[superscript [-]1] undiluted rhamnolipid solution. Maximum initial reduction of adhesion rate (an average of 66%) occurred for Streptococcus salivarius GB 24/9 and Candida tropicalis GB 9/9. The number of cells adhering after 4 h on silicone rubber conditioned with biosurfactant was reduced to 48% for Staphylococcus epidermidis GB 9/6, Strep. salivarius GB 24/9, Staphylococcus aureus GB 2/1 and C. tropicalis GB 9/9 in comparison to controls. Perfusing the flow chamber with biosurfactant containing solution followed by the passage of a liquid-air interface, to investigate detachment of micro-organisms adhering to silicone rubber, produced high detachment (96%) of adhered cells for all micro-organisms studied, except for Staph. aureus GB 2/1 (67%). It is concluded that biosurfactant represent suitable compounds that should be considered in developing future strategies to prevent the microbial colonization of silicone rubber voice prostheses.
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The ability of rhamnolipid biosurfactant to inhibit adhesion of micro-organisms to silicone rubber was investigated in a parallel-plate flow chamber. The anti-adhesive activity of the biosurfactant at different concentrations was significant against all the strains and depended on the micro-organism tested. The results showed an effective reduction in the initial deposition rates, and the number of bacterial cells adhering after 4 h, for all micro-organisms tested at the 4 g l[superscript [-]1] undiluted rhamnolipid solution. Maximum initial reduction of adhesion rate (an average of 66%) occurred for Streptococcus salivarius GB 24/9 and Candida tropicalis GB 9/9. The number of cells adhering after 4 h on silicone rubber conditioned with biosurfactant was reduced to 48% for Staphylococcus epidermidis GB 9/6, Strep. salivarius GB 24/9, Staphylococcus aureus GB 2/1 and C. tropicalis GB 9/9 in comparison to controls. Perfusing the flow chamber with biosurfactant containing solution followed by the passage of a liquid-air interface, to investigate detachment of micro-organisms adhering to silicone rubber, produced high detachment (96%) of adhered cells for all micro-organisms studied, except for Staph. aureus GB 2/1 (67%). It is concluded that biosurfactant represent suitable compounds that should be considered in developing future strategies to prevent the microbial colonization of silicone rubber voice prostheses.</description><identifier>ISSN: 1364-5072</identifier><identifier>EISSN: 1365-2672</identifier><identifier>DOI: 10.1111/j.1365-2672.2005.02826.x</identifier><identifier>PMID: 16478486</identifier><identifier>CODEN: JAMIFK</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Actinomycetaceae - drug effects ; Actinomycetaceae - physiology ; adhesion ; bacteria ; Bacterial Adhesion - drug effects ; Biological and medical sciences ; biosurfactant ; biosurfactants ; Candida albicans - drug effects ; Candida albicans - physiology ; Candida tropicalis ; Candida tropicalis - drug effects ; Candida tropicalis - physiology ; Colony Count, Microbial - methods ; Dose-Response Relationship, Drug ; Fundamental and applied biological sciences. Psychology ; Glycolipids - pharmacology ; Humans ; Larynx, Artificial - microbiology ; microbial colonization ; Microbiology ; prostheses ; Pseudomonas aeruginosa - chemistry ; Pseudomonas aeruginosa DS10‐129 ; rubber ; silicone ; Silicone Elastomers ; silicone rubber ; Staphylococcus aureus ; Staphylococcus aureus - drug effects ; Staphylococcus aureus - physiology ; Staphylococcus epidermidis ; Staphylococcus epidermidis - drug effects ; Staphylococcus epidermidis - physiology ; Streptococcus - drug effects ; Streptococcus - physiology ; Streptococcus salivarius ; Surface Tension ; Surface-Active Agents - pharmacology ; yeasts ; Yeasts - physiology</subject><ispartof>Journal of applied microbiology, 2006-03, Vol.100 (3), p.470-480</ispartof><rights>2006 INIST-CNRS</rights><rights>Copyright Blackwell Publishing 2006</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c6196-ccda32bedcaa1e06c93db84993e7474bf518798bb02ba770838343f9f9fee1b93</citedby><cites>FETCH-LOGICAL-c6196-ccda32bedcaa1e06c93db84993e7474bf518798bb02ba770838343f9f9fee1b93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1365-2672.2005.02826.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1365-2672.2005.02826.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,782,786,1419,27933,27934,45583,45584</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=17503542$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16478486$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rodrigues, L.R</creatorcontrib><creatorcontrib>Banat, I.M</creatorcontrib><creatorcontrib>van der Mei, H.C</creatorcontrib><creatorcontrib>Teixeira, J.A</creatorcontrib><creatorcontrib>Oliveira, R</creatorcontrib><title>Interference in adhesion of bacteria and yeasts isolated from explanted voice prostheses to silicone rubber by rhamnolipid biosurfactants</title><title>Journal of applied microbiology</title><addtitle>J Appl Microbiol</addtitle><description>The effects and extent of adhesion of four different bacterial and two yeast strains isolated from explanted voice prostheses to silicone rubber with and without an adsorbed rhamnolipid biosurfactant layer obtained from Pseudomonasaeruginosa DS10-129 was studied. The ability of rhamnolipid biosurfactant to inhibit adhesion of micro-organisms to silicone rubber was investigated in a parallel-plate flow chamber. The anti-adhesive activity of the biosurfactant at different concentrations was significant against all the strains and depended on the micro-organism tested. The results showed an effective reduction in the initial deposition rates, and the number of bacterial cells adhering after 4 h, for all micro-organisms tested at the 4 g l[superscript [-]1] undiluted rhamnolipid solution. Maximum initial reduction of adhesion rate (an average of 66%) occurred for Streptococcus salivarius GB 24/9 and Candida tropicalis GB 9/9. The number of cells adhering after 4 h on silicone rubber conditioned with biosurfactant was reduced to 48% for Staphylococcus epidermidis GB 9/6, Strep. salivarius GB 24/9, Staphylococcus aureus GB 2/1 and C. tropicalis GB 9/9 in comparison to controls. Perfusing the flow chamber with biosurfactant containing solution followed by the passage of a liquid-air interface, to investigate detachment of micro-organisms adhering to silicone rubber, produced high detachment (96%) of adhered cells for all micro-organisms studied, except for Staph. aureus GB 2/1 (67%). 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The ability of rhamnolipid biosurfactant to inhibit adhesion of micro-organisms to silicone rubber was investigated in a parallel-plate flow chamber. The anti-adhesive activity of the biosurfactant at different concentrations was significant against all the strains and depended on the micro-organism tested. The results showed an effective reduction in the initial deposition rates, and the number of bacterial cells adhering after 4 h, for all micro-organisms tested at the 4 g l[superscript [-]1] undiluted rhamnolipid solution. Maximum initial reduction of adhesion rate (an average of 66%) occurred for Streptococcus salivarius GB 24/9 and Candida tropicalis GB 9/9. The number of cells adhering after 4 h on silicone rubber conditioned with biosurfactant was reduced to 48% for Staphylococcus epidermidis GB 9/6, Strep. salivarius GB 24/9, Staphylococcus aureus GB 2/1 and C. tropicalis GB 9/9 in comparison to controls. Perfusing the flow chamber with biosurfactant containing solution followed by the passage of a liquid-air interface, to investigate detachment of micro-organisms adhering to silicone rubber, produced high detachment (96%) of adhered cells for all micro-organisms studied, except for Staph. aureus GB 2/1 (67%). It is concluded that biosurfactant represent suitable compounds that should be considered in developing future strategies to prevent the microbial colonization of silicone rubber voice prostheses.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>16478486</pmid><doi>10.1111/j.1365-2672.2005.02826.x</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record>
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subjects Actinomycetaceae - drug effects
Actinomycetaceae - physiology
adhesion
bacteria
Bacterial Adhesion - drug effects
Biological and medical sciences
biosurfactant
biosurfactants
Candida albicans - drug effects
Candida albicans - physiology
Candida tropicalis
Candida tropicalis - drug effects
Candida tropicalis - physiology
Colony Count, Microbial - methods
Dose-Response Relationship, Drug
Fundamental and applied biological sciences. Psychology
Glycolipids - pharmacology
Humans
Larynx, Artificial - microbiology
microbial colonization
Microbiology
prostheses
Pseudomonas aeruginosa - chemistry
Pseudomonas aeruginosa DS10‐129
rubber
silicone
Silicone Elastomers
silicone rubber
Staphylococcus aureus
Staphylococcus aureus - drug effects
Staphylococcus aureus - physiology
Staphylococcus epidermidis
Staphylococcus epidermidis - drug effects
Staphylococcus epidermidis - physiology
Streptococcus - drug effects
Streptococcus - physiology
Streptococcus salivarius
Surface Tension
Surface-Active Agents - pharmacology
yeasts
Yeasts - physiology
title Interference in adhesion of bacteria and yeasts isolated from explanted voice prostheses to silicone rubber by rhamnolipid biosurfactants
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