Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications
- Autores
- Placido, Alexandra; Oliveira Farias, Emanuel A.; Marani, Mariela Mirta; Vasconcelos, Adreanne G.; Mafud, Ana C.; Mascarenhas, Yvonne P.; Eiras, Carla; Leite, José R. S. A.; Delerue Matos, María C.
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Peptides are potential candidates to meet the needs of the modern world in relation to diagnosis, disease monitoring, quality control in industry, and more recently, detection of genetically modified organisms (GMOs) and food security through the development of biosensors.1 Cry1Ab16 is a toxin of crystalline insecticidal proteins family that has been widely used in GMOs to gain resistance to pests. Recently, many studies have focused on evaluating the potential environmental impact of this toxin, including the impact on aquatic environments. Moreover, this toxin has been detected in maternal and fetal samples during pesticide exposure studies related to genetically modified food. For the first time, in this study, peptides derived from the immunogenic Cry1Ab16 toxin (from Bacillus thuringiensis) were immobilized as layer-by-layer films. 2 Given the concern about food and environmental safety, a peptide with immunogenic potential, PcL342- 354C, was selected for electrochemical characterization. In addition, an attempt was made to optimize the electrochemical signal of the peptide through interspersion with different natural or synthetic polymers. Finally, the system was characterized using various morphological and spectroscopic techniques such as AFM, UV-Vis, XRD, and FTIR. An ITO/PEI/(PSS/PcL342-354C)n film proved to be an excellent candidate for applications in electrochemical sensors and other biotechnological applications for GMOs and environmental indicators.
Fil: Placido, Alexandra. Universidad de Porto; Portugal
Fil: Oliveira Farias, Emanuel A.. Universidad de Porto; Portugal
Fil: Marani, Mariela Mirta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina
Fil: Vasconcelos, Adreanne G.. Universidade Federal do Piaui; Brasil
Fil: Mafud, Ana C.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; Brasil
Fil: Mascarenhas, Yvonne P.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; Brasil
Fil: Eiras, Carla. Universidade Federal do Piaui; Brasil
Fil: Leite, José R. S. A.. Universidade Federal do Piaui; Brasil
Fil: Delerue Matos, María C.. Universidad de Porto; Portugal
15° Encontro Peptídico Ibérico; 15th Iberian Peptide Meeting
Porto
Portugal
Universidade do Porto. Faculdade de Ciencias - Materia
-
BIOSENSORS
PEPTIDES
GMO
LAYER-BY-LAYER - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/209116
Ver los metadatos del registro completo
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Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applicationsPlacido, AlexandraOliveira Farias, Emanuel A.Marani, Mariela MirtaVasconcelos, Adreanne G.Mafud, Ana C.Mascarenhas, Yvonne P.Eiras, CarlaLeite, José R. S. A.Delerue Matos, María C.BIOSENSORSPEPTIDESGMOLAYER-BY-LAYERhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Peptides are potential candidates to meet the needs of the modern world in relation to diagnosis, disease monitoring, quality control in industry, and more recently, detection of genetically modified organisms (GMOs) and food security through the development of biosensors.1 Cry1Ab16 is a toxin of crystalline insecticidal proteins family that has been widely used in GMOs to gain resistance to pests. Recently, many studies have focused on evaluating the potential environmental impact of this toxin, including the impact on aquatic environments. Moreover, this toxin has been detected in maternal and fetal samples during pesticide exposure studies related to genetically modified food. For the first time, in this study, peptides derived from the immunogenic Cry1Ab16 toxin (from Bacillus thuringiensis) were immobilized as layer-by-layer films. 2 Given the concern about food and environmental safety, a peptide with immunogenic potential, PcL342- 354C, was selected for electrochemical characterization. In addition, an attempt was made to optimize the electrochemical signal of the peptide through interspersion with different natural or synthetic polymers. Finally, the system was characterized using various morphological and spectroscopic techniques such as AFM, UV-Vis, XRD, and FTIR. An ITO/PEI/(PSS/PcL342-354C)n film proved to be an excellent candidate for applications in electrochemical sensors and other biotechnological applications for GMOs and environmental indicators.Fil: Placido, Alexandra. Universidad de Porto; PortugalFil: Oliveira Farias, Emanuel A.. Universidad de Porto; PortugalFil: Marani, Mariela Mirta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; ArgentinaFil: Vasconcelos, Adreanne G.. Universidade Federal do Piaui; BrasilFil: Mafud, Ana C.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; BrasilFil: Mascarenhas, Yvonne P.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; BrasilFil: Eiras, Carla. Universidade Federal do Piaui; BrasilFil: Leite, José R. S. A.. Universidade Federal do Piaui; BrasilFil: Delerue Matos, María C.. Universidad de Porto; Portugal15° Encontro Peptídico Ibérico; 15th Iberian Peptide MeetingPortoPortugalUniversidade do Porto. Faculdade de CienciasOrganizing Committee of XV EPI2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectEncuentroBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/209116Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications; 15° Encontro Peptídico Ibérico; 15th Iberian Peptide Meeting; Porto; Portugal; 2016; 56-56978-989-206374CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.fc.up.pt/EPI2016/include/book_of_abstracts.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:27Zoai:ri.conicet.gov.ar:11336/209116instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:33:28.025CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications |
title |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications |
spellingShingle |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications Placido, Alexandra BIOSENSORS PEPTIDES GMO LAYER-BY-LAYER |
title_short |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications |
title_full |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications |
title_fullStr |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications |
title_full_unstemmed |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications |
title_sort |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications |
dc.creator.none.fl_str_mv |
Placido, Alexandra Oliveira Farias, Emanuel A. Marani, Mariela Mirta Vasconcelos, Adreanne G. Mafud, Ana C. Mascarenhas, Yvonne P. Eiras, Carla Leite, José R. S. A. Delerue Matos, María C. |
author |
Placido, Alexandra |
author_facet |
Placido, Alexandra Oliveira Farias, Emanuel A. Marani, Mariela Mirta Vasconcelos, Adreanne G. Mafud, Ana C. Mascarenhas, Yvonne P. Eiras, Carla Leite, José R. S. A. Delerue Matos, María C. |
author_role |
author |
author2 |
Oliveira Farias, Emanuel A. Marani, Mariela Mirta Vasconcelos, Adreanne G. Mafud, Ana C. Mascarenhas, Yvonne P. Eiras, Carla Leite, José R. S. A. Delerue Matos, María C. |
author2_role |
author author author author author author author author |
dc.subject.none.fl_str_mv |
BIOSENSORS PEPTIDES GMO LAYER-BY-LAYER |
topic |
BIOSENSORS PEPTIDES GMO LAYER-BY-LAYER |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.10 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
Peptides are potential candidates to meet the needs of the modern world in relation to diagnosis, disease monitoring, quality control in industry, and more recently, detection of genetically modified organisms (GMOs) and food security through the development of biosensors.1 Cry1Ab16 is a toxin of crystalline insecticidal proteins family that has been widely used in GMOs to gain resistance to pests. Recently, many studies have focused on evaluating the potential environmental impact of this toxin, including the impact on aquatic environments. Moreover, this toxin has been detected in maternal and fetal samples during pesticide exposure studies related to genetically modified food. For the first time, in this study, peptides derived from the immunogenic Cry1Ab16 toxin (from Bacillus thuringiensis) were immobilized as layer-by-layer films. 2 Given the concern about food and environmental safety, a peptide with immunogenic potential, PcL342- 354C, was selected for electrochemical characterization. In addition, an attempt was made to optimize the electrochemical signal of the peptide through interspersion with different natural or synthetic polymers. Finally, the system was characterized using various morphological and spectroscopic techniques such as AFM, UV-Vis, XRD, and FTIR. An ITO/PEI/(PSS/PcL342-354C)n film proved to be an excellent candidate for applications in electrochemical sensors and other biotechnological applications for GMOs and environmental indicators. Fil: Placido, Alexandra. Universidad de Porto; Portugal Fil: Oliveira Farias, Emanuel A.. Universidad de Porto; Portugal Fil: Marani, Mariela Mirta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina Fil: Vasconcelos, Adreanne G.. Universidade Federal do Piaui; Brasil Fil: Mafud, Ana C.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; Brasil Fil: Mascarenhas, Yvonne P.. Universidade do Sao Paulo. Instituto de Fisica de Sao Carlos; Brasil Fil: Eiras, Carla. Universidade Federal do Piaui; Brasil Fil: Leite, José R. S. A.. Universidade Federal do Piaui; Brasil Fil: Delerue Matos, María C.. Universidad de Porto; Portugal 15° Encontro Peptídico Ibérico; 15th Iberian Peptide Meeting Porto Portugal Universidade do Porto. Faculdade de Ciencias |
description |
Peptides are potential candidates to meet the needs of the modern world in relation to diagnosis, disease monitoring, quality control in industry, and more recently, detection of genetically modified organisms (GMOs) and food security through the development of biosensors.1 Cry1Ab16 is a toxin of crystalline insecticidal proteins family that has been widely used in GMOs to gain resistance to pests. Recently, many studies have focused on evaluating the potential environmental impact of this toxin, including the impact on aquatic environments. Moreover, this toxin has been detected in maternal and fetal samples during pesticide exposure studies related to genetically modified food. For the first time, in this study, peptides derived from the immunogenic Cry1Ab16 toxin (from Bacillus thuringiensis) were immobilized as layer-by-layer films. 2 Given the concern about food and environmental safety, a peptide with immunogenic potential, PcL342- 354C, was selected for electrochemical characterization. In addition, an attempt was made to optimize the electrochemical signal of the peptide through interspersion with different natural or synthetic polymers. Finally, the system was characterized using various morphological and spectroscopic techniques such as AFM, UV-Vis, XRD, and FTIR. An ITO/PEI/(PSS/PcL342-354C)n film proved to be an excellent candidate for applications in electrochemical sensors and other biotechnological applications for GMOs and environmental indicators. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Encuentro Book http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
status_str |
publishedVersion |
format |
conferenceObject |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/209116 Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications; 15° Encontro Peptídico Ibérico; 15th Iberian Peptide Meeting; Porto; Portugal; 2016; 56-56 978-989-206374 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/209116 |
identifier_str_mv |
Bioactive peptides of the Cry1Ab16 toxin from Bacillus thuringiensis by nanodevices films for potential biotechnological applications; 15° Encontro Peptídico Ibérico; 15th Iberian Peptide Meeting; Porto; Portugal; 2016; 56-56 978-989-206374 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.fc.up.pt/EPI2016/include/book_of_abstracts.pdf |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.coverage.none.fl_str_mv |
Internacional |
dc.publisher.none.fl_str_mv |
Organizing Committee of XV EPI |
publisher.none.fl_str_mv |
Organizing Committee of XV EPI |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613028598775808 |
score |
13.070432 |