Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A

Bibliographic Details
Main Author: Rodrigues, L. R.
Publication Date: 2006
Other Authors: Mei, Henny van der, Banat, Ibrahim M., Teixeira, J. A., Oliveira, Rosário
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/1822/4648
Summary: Prova tipográfica (In Press)
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spelling Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus AAdhesionBiosurfactanSilicone rubberStreptococcus thermophilus A.biosurfactantScience & TechnologyProva tipográfica (In Press)Microbial adhesion of four bacterial and two yeast strains isolated from explanted voice prostheses to silicone rubber before and after conditioning with a biosurfactant obtained from the probiotic bacterium Streptococcus thermophilus A was investigated in a parallel plate flow chamber. The silicone rubber with and without an adsorbed biosurfactant layer was characterized using contact angle measurements. Water contact angles indicated that the silicone rubber surface with adsorbed biosurfactant was more hydrophilic (58º) than bare silicone rubber (109º). The results obtained showed that the biosurfactant was effective in decreasing the initial deposition rates, and the number of bacterial cells adhering after 4 h, for all microorganisms tested. A decrease in the initial deposition rate was observed for Rothia dentocariosa GBJ 52/2B and Staphylococcus aureus GB 2/1 from 1937±194 to 179±21 microorganisms cm ˉ² sˉ¹ and from 1255±54 to 233±26 microorganisms cm ˉ²s ˉ¹ , respectively, accounting for an 86% reduction of the initial deposition rate for both strains. The number of bacterial cells adhering to the silicone rubber with preadsorbed biosurfactant after 4 h was further reduced by 89% and 97% by the two strains, respectively. The two yeast strains tested showed less reduction in adhesion after 4 h, to values between 67% and 70%. Such a pretreatment with surface-active compounds may constitute a promising strategy to reduce the microbial colonization rate of silicone rubber voice prostheses.Fundação para a Ciência e a Tecnologia (FCT).Blackwell PublishingUniversidade do MinhoRodrigues, L. R.Mei, Henny van derBanat, Ibrahim M.Teixeira, J. A.Oliveira, Rosário20062006-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/4648eng“FEMS Immunology and Medical Microbiology”. 46:1 (2006) 107-112.0928-824410.1111/j.1574-695X.2005.00006.x16420603info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-11T06:04:08Zoai:repositorium.sdum.uminho.pt:1822/4648Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:39:48.162039Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A
title Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A
spellingShingle Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A
Rodrigues, L. R.
Adhesion
Biosurfactan
Silicone rubber
Streptococcus thermophilus A.
biosurfactant
Science & Technology
title_short Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A
title_full Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A
title_fullStr Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A
title_full_unstemmed Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A
title_sort Inhibition of microbial adhesion to silicone rubber treated with biosurfactant from Streptococcus thermophilus A
author Rodrigues, L. R.
author_facet Rodrigues, L. R.
Mei, Henny van der
Banat, Ibrahim M.
Teixeira, J. A.
Oliveira, Rosário
author_role author
author2 Mei, Henny van der
Banat, Ibrahim M.
Teixeira, J. A.
Oliveira, Rosário
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Rodrigues, L. R.
Mei, Henny van der
Banat, Ibrahim M.
Teixeira, J. A.
Oliveira, Rosário
dc.subject.por.fl_str_mv Adhesion
Biosurfactan
Silicone rubber
Streptococcus thermophilus A.
biosurfactant
Science & Technology
topic Adhesion
Biosurfactan
Silicone rubber
Streptococcus thermophilus A.
biosurfactant
Science & Technology
description Prova tipográfica (In Press)
publishDate 2006
dc.date.none.fl_str_mv 2006
2006-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/4648
url http://hdl.handle.net/1822/4648
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv “FEMS Immunology and Medical Microbiology”. 46:1 (2006) 107-112.
0928-8244
10.1111/j.1574-695X.2005.00006.x
16420603
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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