Término solicitado: MOLINARI, JUDITH/(22)
2 Registro/s encontrado/s en CAT+NORMA
| Tipo de Docum.: | artículo |
| Título: | Electrochemical determination of β-Lactoglobulin employing a polystyrene bead-modified carbon nanotube ink |
| Autor: | Molinari, Judith; Florez, Laura; Medrano, Anahí; Monsalve, Leandro; Ybarra, Gabriel |
| Título Ser./Col.: | Biosensors, 8(4) |
| Autor Inst. Ser./Col.: | Multidisciplinary Digital Publishing Institute. MDPI. Basilea. CH |
| Idioma: | eng |
| Datos de Edición: | s.l. MDPI. 2018. |
| Pág./Vol.: | 9p. |
| Unidad técnica: | INTI-Procesos Superficiales; INTI-Micro y Nanoelectrónica. |
| Descriptores: | Métodos electroquímicos; Sensores electroquímicos; Nanotubos de carbón; Alérgenos; Alimentos alergénicos; Poliestireno; Tintas; Biosensores |
| Resumen: | In this article, we introduce the use of a carboxy-functionalized waterborne carbon nanotube ink for the fabrication of an amperometric biosensor aimed at the quantification of β-lactoglobulin. Detection of this protein from cow’s milk was performed by a sandwich immunoassay onto printed carbon nanotube electrodes. The electrodes were printed using a carbon nanotube ink modified with polystyrene beads containing a high amount of carboxylic groups for protein immobilization. This strategy showed enhanced sensing performance compared to the use of oxidative treatments for the functionalization of electrodes. These electrodes showed an excellent electrochemical behavior, and proteins could be immobilized on their surface via the carbodiimide reaction. These antibody-immobilized carbon nanotube electrodes allowed for the detection of β-lactoglobulin in sub-ppm concentrations. |
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URL: |
https://www.mdpi.com/2079-6374/8/4/109 |
| Tipo de Docum.: | artículo |
| Título: | Electrochemical immunosensor for the determination of β-casein |
| Autor: | Molinari, Judith; Moina, Carlos; Ybarra, Gabriel |
| Título Ser./Col.: | Journal of Electrochemical Science and Engineering, 5(1) |
| Autor Inst. Ser./Col.: | Association of South-East European Electrochemists. ASEE |
| Idioma: | eng |
| Datos de Edición: | s.l. IAPC. 2015. |
| Pág./Vol.: | p. 9-16. |
| Unidad técnica: | INTI-Procesos Superficiales. |
| Descriptores: | Sensores electroquímicos; Inmunosensores; Caseína; Células; Biosensores; Alergenos; Alimentos alergénicos |
| Resumen: | An amperometric biosensor for the quantification of food allergens based on an inhibitory immunoassay is presented. As a proof of concept, the experimental conditions were optimized for the detection of β-casein in the 0-10 ppm range. Eight electrochemical cells were integrated into a small-sized portable potentiostat controlled by a smartphone via Bluetooth communication. The determination of β-casein in eight different samples can be measured with the electrochemical biosensor, which has the potential to be modified for the detection of multiple allergens. |
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URL: |
http://pub.iapchem.org/ojs/index.php/JESE/article/view/171 |
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