Label-free electrochemical aptasensor for the detection of lysozyme
- Autores
- Rodriguez, Marcela Cecilia; Rivas, Gustavo Adolfo
- Año de publicación
- 2009
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This work reports the advantages of a label free electrochemical aptasensor for the detection of lysozyme. The biorecognition platform was obtained by the adsorption of the aptamer on the surface of a carbon paste electrode (CPE) previously blocked with mouse immunoglobulin under controlled-potential conditions. The recognition event was detected from the decrease in the guanine and adenine electro-oxidation signals produced as a consequence of the molecular interaction between the aptamer and lysozyme. The biosensing platform demonstrated to be highly selective even in the presence of large excess (9-fold) of bovine serum albumin, cytochrome C and myoglobin. The reproducibility for 10 repetitive determinations of 10.0 mg L-1 lysozyme solution was 5.1% and 6.8% for guanine and adenine electro-oxidation signals, respectively. The detection limits of the aptasensor were 36.0 nmol L-1 (if considering guanine signal) and 18.0 nmol L-1 (if taking adenine oxidation current). This new sensing approach represents an interesting and promising alternative for the electrochemical quantification of lysozyme.
Fil: Rodriguez, Marcela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina - Materia
-
Aptamer
Biosensor
Carbon Paste Electrode
Electrochemical Aptasensor
Lysozyme
Protein Detection - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/82798
Ver los metadatos del registro completo
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Label-free electrochemical aptasensor for the detection of lysozymeRodriguez, Marcela CeciliaRivas, Gustavo AdolfoAptamerBiosensorCarbon Paste ElectrodeElectrochemical AptasensorLysozymeProtein Detectionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1This work reports the advantages of a label free electrochemical aptasensor for the detection of lysozyme. The biorecognition platform was obtained by the adsorption of the aptamer on the surface of a carbon paste electrode (CPE) previously blocked with mouse immunoglobulin under controlled-potential conditions. The recognition event was detected from the decrease in the guanine and adenine electro-oxidation signals produced as a consequence of the molecular interaction between the aptamer and lysozyme. The biosensing platform demonstrated to be highly selective even in the presence of large excess (9-fold) of bovine serum albumin, cytochrome C and myoglobin. The reproducibility for 10 repetitive determinations of 10.0 mg L-1 lysozyme solution was 5.1% and 6.8% for guanine and adenine electro-oxidation signals, respectively. The detection limits of the aptasensor were 36.0 nmol L-1 (if considering guanine signal) and 18.0 nmol L-1 (if taking adenine oxidation current). This new sensing approach represents an interesting and promising alternative for the electrochemical quantification of lysozyme.Fil: Rodriguez, Marcela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaElsevier Science2009-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82798Rodriguez, Marcela Cecilia; Rivas, Gustavo Adolfo; Label-free electrochemical aptasensor for the detection of lysozyme; Elsevier Science; Talanta; 78; 1; 4-2009; 212-2160039-9140CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S003991400800806info:eu-repo/semantics/altIdentifier/doi/10.1016/j.talanta.2008.11.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:16:09Zoai:ri.conicet.gov.ar:11336/82798instacron: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:34982025-10-22 11:16:09.634CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Label-free electrochemical aptasensor for the detection of lysozyme |
| title |
Label-free electrochemical aptasensor for the detection of lysozyme |
| spellingShingle |
Label-free electrochemical aptasensor for the detection of lysozyme Rodriguez, Marcela Cecilia Aptamer Biosensor Carbon Paste Electrode Electrochemical Aptasensor Lysozyme Protein Detection |
| title_short |
Label-free electrochemical aptasensor for the detection of lysozyme |
| title_full |
Label-free electrochemical aptasensor for the detection of lysozyme |
| title_fullStr |
Label-free electrochemical aptasensor for the detection of lysozyme |
| title_full_unstemmed |
Label-free electrochemical aptasensor for the detection of lysozyme |
| title_sort |
Label-free electrochemical aptasensor for the detection of lysozyme |
| dc.creator.none.fl_str_mv |
Rodriguez, Marcela Cecilia Rivas, Gustavo Adolfo |
| author |
Rodriguez, Marcela Cecilia |
| author_facet |
Rodriguez, Marcela Cecilia Rivas, Gustavo Adolfo |
| author_role |
author |
| author2 |
Rivas, Gustavo Adolfo |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Aptamer Biosensor Carbon Paste Electrode Electrochemical Aptasensor Lysozyme Protein Detection |
| topic |
Aptamer Biosensor Carbon Paste Electrode Electrochemical Aptasensor Lysozyme Protein Detection |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
This work reports the advantages of a label free electrochemical aptasensor for the detection of lysozyme. The biorecognition platform was obtained by the adsorption of the aptamer on the surface of a carbon paste electrode (CPE) previously blocked with mouse immunoglobulin under controlled-potential conditions. The recognition event was detected from the decrease in the guanine and adenine electro-oxidation signals produced as a consequence of the molecular interaction between the aptamer and lysozyme. The biosensing platform demonstrated to be highly selective even in the presence of large excess (9-fold) of bovine serum albumin, cytochrome C and myoglobin. The reproducibility for 10 repetitive determinations of 10.0 mg L-1 lysozyme solution was 5.1% and 6.8% for guanine and adenine electro-oxidation signals, respectively. The detection limits of the aptasensor were 36.0 nmol L-1 (if considering guanine signal) and 18.0 nmol L-1 (if taking adenine oxidation current). This new sensing approach represents an interesting and promising alternative for the electrochemical quantification of lysozyme. Fil: Rodriguez, Marcela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina |
| description |
This work reports the advantages of a label free electrochemical aptasensor for the detection of lysozyme. The biorecognition platform was obtained by the adsorption of the aptamer on the surface of a carbon paste electrode (CPE) previously blocked with mouse immunoglobulin under controlled-potential conditions. The recognition event was detected from the decrease in the guanine and adenine electro-oxidation signals produced as a consequence of the molecular interaction between the aptamer and lysozyme. The biosensing platform demonstrated to be highly selective even in the presence of large excess (9-fold) of bovine serum albumin, cytochrome C and myoglobin. The reproducibility for 10 repetitive determinations of 10.0 mg L-1 lysozyme solution was 5.1% and 6.8% for guanine and adenine electro-oxidation signals, respectively. The detection limits of the aptasensor were 36.0 nmol L-1 (if considering guanine signal) and 18.0 nmol L-1 (if taking adenine oxidation current). This new sensing approach represents an interesting and promising alternative for the electrochemical quantification of lysozyme. |
| publishDate |
2009 |
| dc.date.none.fl_str_mv |
2009-04 |
| 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/11336/82798 Rodriguez, Marcela Cecilia; Rivas, Gustavo Adolfo; Label-free electrochemical aptasensor for the detection of lysozyme; Elsevier Science; Talanta; 78; 1; 4-2009; 212-216 0039-9140 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/82798 |
| identifier_str_mv |
Rodriguez, Marcela Cecilia; Rivas, Gustavo Adolfo; Label-free electrochemical aptasensor for the detection of lysozyme; Elsevier Science; Talanta; 78; 1; 4-2009; 212-216 0039-9140 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
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eng |
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info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S003991400800806 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.talanta.2008.11.002 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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openAccess |
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Elsevier Science |
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Elsevier Science |
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