Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/26104 |
Resumo: | Enzymatic hydroxylation of polypropylene (PP) was investigated in order to increase hydrophilicity. A mutant (139-3) of the P450monooxygenase from Bacillus megaterium expressed in E. coli DH5α was purified using anion exchange chromatography. Hydroxylation of PP fabrics led to a dramatic increase of hydrophilicity as indicated by a water drop dissipation time of below 1 s compared to the hydrophobic reference material. Likewise, a 4.9 cm increase of rising height was measured which remained consistent after 144 h of storage. Similarly, enzymatic hydroxylation of PP films lead to a decrease of the WCA from 104.6° to 77.3° with no major change after exposure to air for 6 days. Using X-ray photoelectron spectroscopy, an increase in normalized atomic concentrations of oxygen from 1.40 to 4.98% for the CO-inhibited and enzyme treated sample, respectively, was measured confirming enzymatic hydroxylation. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3OxidoreductasePolypropylenePolymerSurface modificationScience & TechnologyEnzymatic hydroxylation of polypropylene (PP) was investigated in order to increase hydrophilicity. A mutant (139-3) of the P450monooxygenase from Bacillus megaterium expressed in E. coli DH5α was purified using anion exchange chromatography. Hydroxylation of PP fabrics led to a dramatic increase of hydrophilicity as indicated by a water drop dissipation time of below 1 s compared to the hydrophobic reference material. Likewise, a 4.9 cm increase of rising height was measured which remained consistent after 144 h of storage. Similarly, enzymatic hydroxylation of PP films lead to a decrease of the WCA from 104.6° to 77.3° with no major change after exposure to air for 6 days. Using X-ray photoelectron spectroscopy, an increase in normalized atomic concentrations of oxygen from 1.40 to 4.98% for the CO-inhibited and enzyme treated sample, respectively, was measured confirming enzymatic hydroxylation.This study was performed within Austrian Centre of Industrial Biotechnology ACIB, the MacroFun project and COST Action 868. This work has been supported by the Federal Ministry of Economy, Family and Youth (BMWFJ), the Federal Ministry of Traffic, Innovation and Technology (bmvit), the Styrian Business Promotion Agency SFG, the Standortagentur Tirol and ZIT - Technology Agency of the City of Vienna through the COMET- Funding Program managed by the Austrian Research Promotion Agency FFG.Informa HealthcareUniversidade do MinhoHasmann, AndreaEberl, AnitaSchneider, KonstantinSchoening, K.-U.Kaufmann, FranzGlieder, AntonKovac, JanezPaulo, Artur CavacoWehrschuetz-Sigl, EvaGuebitz, G. M.20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/26104eng1024-242210.3109/10242422.2012.645367info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:41:09Zoai:repositorium.sdum.uminho.pt:1822/26104Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:38:03.459857Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3 |
title |
Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3 |
spellingShingle |
Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3 Hasmann, Andrea Oxidoreductase Polypropylene Polymer Surface modification Science & Technology |
title_short |
Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3 |
title_full |
Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3 |
title_fullStr |
Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3 |
title_full_unstemmed |
Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3 |
title_sort |
Hydroxylation of polypropylene using the monooxygenase mutant 139-3 from Bacillus megaterium BM3 |
author |
Hasmann, Andrea |
author_facet |
Hasmann, Andrea Eberl, Anita Schneider, Konstantin Schoening, K.-U. Kaufmann, Franz Glieder, Anton Kovac, Janez Paulo, Artur Cavaco Wehrschuetz-Sigl, Eva Guebitz, G. M. |
author_role |
author |
author2 |
Eberl, Anita Schneider, Konstantin Schoening, K.-U. Kaufmann, Franz Glieder, Anton Kovac, Janez Paulo, Artur Cavaco Wehrschuetz-Sigl, Eva Guebitz, G. M. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Hasmann, Andrea Eberl, Anita Schneider, Konstantin Schoening, K.-U. Kaufmann, Franz Glieder, Anton Kovac, Janez Paulo, Artur Cavaco Wehrschuetz-Sigl, Eva Guebitz, G. M. |
dc.subject.por.fl_str_mv |
Oxidoreductase Polypropylene Polymer Surface modification Science & Technology |
topic |
Oxidoreductase Polypropylene Polymer Surface modification Science & Technology |
description |
Enzymatic hydroxylation of polypropylene (PP) was investigated in order to increase hydrophilicity. A mutant (139-3) of the P450monooxygenase from Bacillus megaterium expressed in E. coli DH5α was purified using anion exchange chromatography. Hydroxylation of PP fabrics led to a dramatic increase of hydrophilicity as indicated by a water drop dissipation time of below 1 s compared to the hydrophobic reference material. Likewise, a 4.9 cm increase of rising height was measured which remained consistent after 144 h of storage. Similarly, enzymatic hydroxylation of PP films lead to a decrease of the WCA from 104.6° to 77.3° with no major change after exposure to air for 6 days. Using X-ray photoelectron spectroscopy, an increase in normalized atomic concentrations of oxygen from 1.40 to 4.98% for the CO-inhibited and enzyme treated sample, respectively, was measured confirming enzymatic hydroxylation. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2012-01-01T00:00:00Z |
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/1822/26104 |
url |
http://hdl.handle.net/1822/26104 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1024-2422 10.3109/10242422.2012.645367 |
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 |
Informa Healthcare |
publisher.none.fl_str_mv |
Informa Healthcare |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1799132916090929152 |