Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors
- Autores
- Alvarez, Florencia; Schilardi, Patricia Laura; Fernandez Lorenzo, Monica Alicia
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The copper intrauterine device is a contraceptive method that is based on the release of copper ions from a copper wire. Immediately after insertion, the dissolution of copper in the uterine fluid is markedly higher ("burst release") than that necessary for contraception action, leading to a variety of harmful effects. STUDY DESIGN: Pretreatments with organic compounds [thiourea (TU) and purine (PU), 10(-4)-10(-2) M concentration range, 1- and 3-h immersion times] were tested. The dissolution of copper with and without pretreatments in TU and PU solutions was analyzed by conventional electrochemical techniques and surface analysis. RESULTS: Pretreatments in PU solutions reduced the initial corrosion rate of copper in simulated uterine solutions, with inhibitory efficiencies that depend on the PU concentration and on the immersion time assayed. Inhibitory efficiency values higher than 98% for pretreatments with ≥10(-3) M PU were found. Conversely, after TU pretreatments, a high copper release was measured. CONCLUSIONS: It was concluded that 10(-3) M PU pretreatment is a promising strategy able to reduce the "burst release" of copper and to ensure contraceptive action.
Fil: Alvarez, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Fernandez Lorenzo, Monica Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina - Materia
-
Iud
Metal Ion Release
Corrosion
Adsorption - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/6364
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3498 |
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Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitorsAlvarez, FlorenciaSchilardi, Patricia LauraFernandez Lorenzo, Monica AliciaIudMetal Ion ReleaseCorrosionAdsorptionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The copper intrauterine device is a contraceptive method that is based on the release of copper ions from a copper wire. Immediately after insertion, the dissolution of copper in the uterine fluid is markedly higher ("burst release") than that necessary for contraception action, leading to a variety of harmful effects. STUDY DESIGN: Pretreatments with organic compounds [thiourea (TU) and purine (PU), 10(-4)-10(-2) M concentration range, 1- and 3-h immersion times] were tested. The dissolution of copper with and without pretreatments in TU and PU solutions was analyzed by conventional electrochemical techniques and surface analysis. RESULTS: Pretreatments in PU solutions reduced the initial corrosion rate of copper in simulated uterine solutions, with inhibitory efficiencies that depend on the PU concentration and on the immersion time assayed. Inhibitory efficiency values higher than 98% for pretreatments with ≥10(-3) M PU were found. Conversely, after TU pretreatments, a high copper release was measured. CONCLUSIONS: It was concluded that 10(-3) M PU pretreatment is a promising strategy able to reduce the "burst release" of copper and to ensure contraceptive action.Fil: Alvarez, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Fernandez Lorenzo, Monica Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaElsevier2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6364Alvarez, Florencia; Schilardi, Patricia Laura; Fernandez Lorenzo, Monica Alicia; Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors; Elsevier; Contraception; 85; 1; 1-2012; 91–980010-7824enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.contraception.2011.05.011info:eu-repo/semantics/altIdentifier/pmid/22067791info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0010782411002447info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:51:46Zoai:ri.conicet.gov.ar:11336/6364instacron: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 09:51:46.498CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors |
title |
Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors |
spellingShingle |
Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors Alvarez, Florencia Iud Metal Ion Release Corrosion Adsorption |
title_short |
Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors |
title_full |
Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors |
title_fullStr |
Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors |
title_full_unstemmed |
Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors |
title_sort |
Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors |
dc.creator.none.fl_str_mv |
Alvarez, Florencia Schilardi, Patricia Laura Fernandez Lorenzo, Monica Alicia |
author |
Alvarez, Florencia |
author_facet |
Alvarez, Florencia Schilardi, Patricia Laura Fernandez Lorenzo, Monica Alicia |
author_role |
author |
author2 |
Schilardi, Patricia Laura Fernandez Lorenzo, Monica Alicia |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Iud Metal Ion Release Corrosion Adsorption |
topic |
Iud Metal Ion Release Corrosion Adsorption |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The copper intrauterine device is a contraceptive method that is based on the release of copper ions from a copper wire. Immediately after insertion, the dissolution of copper in the uterine fluid is markedly higher ("burst release") than that necessary for contraception action, leading to a variety of harmful effects. STUDY DESIGN: Pretreatments with organic compounds [thiourea (TU) and purine (PU), 10(-4)-10(-2) M concentration range, 1- and 3-h immersion times] were tested. The dissolution of copper with and without pretreatments in TU and PU solutions was analyzed by conventional electrochemical techniques and surface analysis. RESULTS: Pretreatments in PU solutions reduced the initial corrosion rate of copper in simulated uterine solutions, with inhibitory efficiencies that depend on the PU concentration and on the immersion time assayed. Inhibitory efficiency values higher than 98% for pretreatments with ≥10(-3) M PU were found. Conversely, after TU pretreatments, a high copper release was measured. CONCLUSIONS: It was concluded that 10(-3) M PU pretreatment is a promising strategy able to reduce the "burst release" of copper and to ensure contraceptive action. Fil: Alvarez, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Fernandez Lorenzo, Monica Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina |
description |
The copper intrauterine device is a contraceptive method that is based on the release of copper ions from a copper wire. Immediately after insertion, the dissolution of copper in the uterine fluid is markedly higher ("burst release") than that necessary for contraception action, leading to a variety of harmful effects. STUDY DESIGN: Pretreatments with organic compounds [thiourea (TU) and purine (PU), 10(-4)-10(-2) M concentration range, 1- and 3-h immersion times] were tested. The dissolution of copper with and without pretreatments in TU and PU solutions was analyzed by conventional electrochemical techniques and surface analysis. RESULTS: Pretreatments in PU solutions reduced the initial corrosion rate of copper in simulated uterine solutions, with inhibitory efficiencies that depend on the PU concentration and on the immersion time assayed. Inhibitory efficiency values higher than 98% for pretreatments with ≥10(-3) M PU were found. Conversely, after TU pretreatments, a high copper release was measured. CONCLUSIONS: It was concluded that 10(-3) M PU pretreatment is a promising strategy able to reduce the "burst release" of copper and to ensure contraceptive action. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/6364 Alvarez, Florencia; Schilardi, Patricia Laura; Fernandez Lorenzo, Monica Alicia; Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors; Elsevier; Contraception; 85; 1; 1-2012; 91–98 0010-7824 |
url |
http://hdl.handle.net/11336/6364 |
identifier_str_mv |
Alvarez, Florencia; Schilardi, Patricia Laura; Fernandez Lorenzo, Monica Alicia; Reduction of the "burst release" of copper ions from copper-based Intrauterine Devices (IUD) by organic inhibitors; Elsevier; Contraception; 85; 1; 1-2012; 91–98 0010-7824 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/ info:eu-repo/semantics/altIdentifier/doi/10.1016/j.contraception.2011.05.011 info:eu-repo/semantics/altIdentifier/pmid/22067791 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0010782411002447 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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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1844613590339813376 |
score |
13.070432 |