Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes
- Autores
- Colmano, Guillermo Nicolas; Sánchez, Mariela Eugenia; Turina, Anahi del Valle
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Phospholipid monolayers are often used to emulate biological membrane behavior and interactions with diverse compounds. Yet frequently, these monolayers consist of a single phospholipid or binary mixtures. These monolayers do not share many similarities with biological membranes, for this reason, the aim of this work is to construct Biomimetic Membranes (BM) and test whether they reproduce the behavior of Natural Membranes (NM) and their interaction with an insecticide of sanitary interest, Fipronil. The NMs were synaptosomal membranes of Bos taurus cerebral cortex (NM Bt) and cerebral ganglia membranes of Triatoma infestans nymphs (NMTi). The BMs were assembled with the major lipid components of their respective MN (BMBt and BMTi). Biomimetic Membranes π-A isotherms do not reflect the same behavior of NMs, they are devoided of transition and exhibit a smoother outline. The collapse pressure (πc) of BMBt was quite similar to that of NMBt, yet πc of BMTi was higher than the one observed in NMTi. The compression modulus of both BMs at π =30 mN/m was higher than the one found in NMs, this means that BMs at that π, are more condensed than the natural ones. The presence of fipronil in the subphase, even at low concentrations, causes an increase of ΔV, more evident in NMs. πcutoff essays showed that penetration of fipronil in NMs is only possible up to 34 mN/m, whereas in BMs this value increases to 50 mN/m in BMBt and 44 mN/m in BMTi, suggesting that the presence of proteins in NMs modifies the interaction of fipronil. Fluorescence anisotropy studies showed that BMs behaved similarly to NMs. Fipronil exerted no effect over DPH and TMA-DPH anisotropy values of NMs, but it did affect BMs. EFM images of transferred monolayers show that BMs allow a more homogeneous distribution of the DilC18 fluorescent probe than NMs, but they both exhibit non-defined condensed domains at π above 30 mN/m. Fipronil exerts changes in the distribution of the fluorescent probe in NMs and BMs and this effect was more noticeable at high π values (30 mN/m or higher). In Summary, even though BMs did not emulate their respective NMs perfectly, many parameters were successfully reproduced, and BMTi reproduced its natural counterpart more accurately.
Fil: Colmano, Guillermo Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Sánchez, Mariela Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Turina, Anahi del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
XLVIII Reunión Anual de la Sociedad Argentina de Biofísica
San Luis
Argentina
Sociedad Argentina de Biofísica - Materia
-
BIOMIMETIC MEMBRANES
BOVINE MEMBRANES
TRIATOMINE MEMBRANES - 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:11336/228599
Ver los metadatos del registro completo
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Design and comparison of biomimetic membranes based on natural bovine and triatomine membranesColmano, Guillermo NicolasSánchez, Mariela EugeniaTurina, Anahi del ValleBIOMIMETIC MEMBRANESBOVINE MEMBRANESTRIATOMINE MEMBRANEShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Phospholipid monolayers are often used to emulate biological membrane behavior and interactions with diverse compounds. Yet frequently, these monolayers consist of a single phospholipid or binary mixtures. These monolayers do not share many similarities with biological membranes, for this reason, the aim of this work is to construct Biomimetic Membranes (BM) and test whether they reproduce the behavior of Natural Membranes (NM) and their interaction with an insecticide of sanitary interest, Fipronil. The NMs were synaptosomal membranes of Bos taurus cerebral cortex (NM Bt) and cerebral ganglia membranes of Triatoma infestans nymphs (NMTi). The BMs were assembled with the major lipid components of their respective MN (BMBt and BMTi). Biomimetic Membranes π-A isotherms do not reflect the same behavior of NMs, they are devoided of transition and exhibit a smoother outline. The collapse pressure (πc) of BMBt was quite similar to that of NMBt, yet πc of BMTi was higher than the one observed in NMTi. The compression modulus of both BMs at π =30 mN/m was higher than the one found in NMs, this means that BMs at that π, are more condensed than the natural ones. The presence of fipronil in the subphase, even at low concentrations, causes an increase of ΔV, more evident in NMs. πcutoff essays showed that penetration of fipronil in NMs is only possible up to 34 mN/m, whereas in BMs this value increases to 50 mN/m in BMBt and 44 mN/m in BMTi, suggesting that the presence of proteins in NMs modifies the interaction of fipronil. Fluorescence anisotropy studies showed that BMs behaved similarly to NMs. Fipronil exerted no effect over DPH and TMA-DPH anisotropy values of NMs, but it did affect BMs. EFM images of transferred monolayers show that BMs allow a more homogeneous distribution of the DilC18 fluorescent probe than NMs, but they both exhibit non-defined condensed domains at π above 30 mN/m. Fipronil exerts changes in the distribution of the fluorescent probe in NMs and BMs and this effect was more noticeable at high π values (30 mN/m or higher). In Summary, even though BMs did not emulate their respective NMs perfectly, many parameters were successfully reproduced, and BMTi reproduced its natural counterpart more accurately.Fil: Colmano, Guillermo Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Sánchez, Mariela Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Turina, Anahi del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaXLVIII Reunión Anual de la Sociedad Argentina de BiofísicaSan LuisArgentinaSociedad Argentina de BiofísicaSociedad Argentina de BiofísicaAndujar, Sebastian AntonioCelej, Maria SoledadAcierno, Juan Pablo2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/228599Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes; XLVIII Reunión Anual de la Sociedad Argentina de Biofísica; San Luis; Argentina; 2019; 88-88978-987-27591-7-9CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://biofisica.org.ar/reuniones-cientificas/reunionsab-previas/Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:56Zoai:ri.conicet.gov.ar:11336/228599instacron: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 09:44:56.593CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes |
title |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes |
spellingShingle |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes Colmano, Guillermo Nicolas BIOMIMETIC MEMBRANES BOVINE MEMBRANES TRIATOMINE MEMBRANES |
title_short |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes |
title_full |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes |
title_fullStr |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes |
title_full_unstemmed |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes |
title_sort |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes |
dc.creator.none.fl_str_mv |
Colmano, Guillermo Nicolas Sánchez, Mariela Eugenia Turina, Anahi del Valle |
author |
Colmano, Guillermo Nicolas |
author_facet |
Colmano, Guillermo Nicolas Sánchez, Mariela Eugenia Turina, Anahi del Valle |
author_role |
author |
author2 |
Sánchez, Mariela Eugenia Turina, Anahi del Valle |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Andujar, Sebastian Antonio Celej, Maria Soledad Acierno, Juan Pablo |
dc.subject.none.fl_str_mv |
BIOMIMETIC MEMBRANES BOVINE MEMBRANES TRIATOMINE MEMBRANES |
topic |
BIOMIMETIC MEMBRANES BOVINE MEMBRANES TRIATOMINE MEMBRANES |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Phospholipid monolayers are often used to emulate biological membrane behavior and interactions with diverse compounds. Yet frequently, these monolayers consist of a single phospholipid or binary mixtures. These monolayers do not share many similarities with biological membranes, for this reason, the aim of this work is to construct Biomimetic Membranes (BM) and test whether they reproduce the behavior of Natural Membranes (NM) and their interaction with an insecticide of sanitary interest, Fipronil. The NMs were synaptosomal membranes of Bos taurus cerebral cortex (NM Bt) and cerebral ganglia membranes of Triatoma infestans nymphs (NMTi). The BMs were assembled with the major lipid components of their respective MN (BMBt and BMTi). Biomimetic Membranes π-A isotherms do not reflect the same behavior of NMs, they are devoided of transition and exhibit a smoother outline. The collapse pressure (πc) of BMBt was quite similar to that of NMBt, yet πc of BMTi was higher than the one observed in NMTi. The compression modulus of both BMs at π =30 mN/m was higher than the one found in NMs, this means that BMs at that π, are more condensed than the natural ones. The presence of fipronil in the subphase, even at low concentrations, causes an increase of ΔV, more evident in NMs. πcutoff essays showed that penetration of fipronil in NMs is only possible up to 34 mN/m, whereas in BMs this value increases to 50 mN/m in BMBt and 44 mN/m in BMTi, suggesting that the presence of proteins in NMs modifies the interaction of fipronil. Fluorescence anisotropy studies showed that BMs behaved similarly to NMs. Fipronil exerted no effect over DPH and TMA-DPH anisotropy values of NMs, but it did affect BMs. EFM images of transferred monolayers show that BMs allow a more homogeneous distribution of the DilC18 fluorescent probe than NMs, but they both exhibit non-defined condensed domains at π above 30 mN/m. Fipronil exerts changes in the distribution of the fluorescent probe in NMs and BMs and this effect was more noticeable at high π values (30 mN/m or higher). In Summary, even though BMs did not emulate their respective NMs perfectly, many parameters were successfully reproduced, and BMTi reproduced its natural counterpart more accurately. Fil: Colmano, Guillermo Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina Fil: Sánchez, Mariela Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina Fil: Turina, Anahi del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina XLVIII Reunión Anual de la Sociedad Argentina de Biofísica San Luis Argentina Sociedad Argentina de Biofísica |
description |
Phospholipid monolayers are often used to emulate biological membrane behavior and interactions with diverse compounds. Yet frequently, these monolayers consist of a single phospholipid or binary mixtures. These monolayers do not share many similarities with biological membranes, for this reason, the aim of this work is to construct Biomimetic Membranes (BM) and test whether they reproduce the behavior of Natural Membranes (NM) and their interaction with an insecticide of sanitary interest, Fipronil. The NMs were synaptosomal membranes of Bos taurus cerebral cortex (NM Bt) and cerebral ganglia membranes of Triatoma infestans nymphs (NMTi). The BMs were assembled with the major lipid components of their respective MN (BMBt and BMTi). Biomimetic Membranes π-A isotherms do not reflect the same behavior of NMs, they are devoided of transition and exhibit a smoother outline. The collapse pressure (πc) of BMBt was quite similar to that of NMBt, yet πc of BMTi was higher than the one observed in NMTi. The compression modulus of both BMs at π =30 mN/m was higher than the one found in NMs, this means that BMs at that π, are more condensed than the natural ones. The presence of fipronil in the subphase, even at low concentrations, causes an increase of ΔV, more evident in NMs. πcutoff essays showed that penetration of fipronil in NMs is only possible up to 34 mN/m, whereas in BMs this value increases to 50 mN/m in BMBt and 44 mN/m in BMTi, suggesting that the presence of proteins in NMs modifies the interaction of fipronil. Fluorescence anisotropy studies showed that BMs behaved similarly to NMs. Fipronil exerted no effect over DPH and TMA-DPH anisotropy values of NMs, but it did affect BMs. EFM images of transferred monolayers show that BMs allow a more homogeneous distribution of the DilC18 fluorescent probe than NMs, but they both exhibit non-defined condensed domains at π above 30 mN/m. Fipronil exerts changes in the distribution of the fluorescent probe in NMs and BMs and this effect was more noticeable at high π values (30 mN/m or higher). In Summary, even though BMs did not emulate their respective NMs perfectly, many parameters were successfully reproduced, and BMTi reproduced its natural counterpart more accurately. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Reunión 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/11336/228599 Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes; XLVIII Reunión Anual de la Sociedad Argentina de Biofísica; San Luis; Argentina; 2019; 88-88 978-987-27591-7-9 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/228599 |
identifier_str_mv |
Design and comparison of biomimetic membranes based on natural bovine and triatomine membranes; XLVIII Reunión Anual de la Sociedad Argentina de Biofísica; San Luis; Argentina; 2019; 88-88 978-987-27591-7-9 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://biofisica.org.ar/reuniones-cientificas/reunionsab-previas/ |
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 |
Sociedad Argentina de Biofísica |
publisher.none.fl_str_mv |
Sociedad Argentina de Biofísica |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |