Término solicitado: MASS, MIJAL/(22)
4 Registro/s encontrado/s en CAT+NORMA
| Tipo de Docum.: | artículo |
| Título: | Fully inkjet-printed biosensors fabricated with a highly stable ink based on carbon nanotubes and enzyme-functionalized nanoparticles |
| Autor: | Mass, Mijal; Veiga, Lionel S.; Garate, Octavio; Longinotti, Gloria; Moya, Ana; Ramón, Eloi; Villa, Rosa; Ybarra, Gabriel; Gabriel, Gemma |
| Título Ser./Col.: | Nanomaterials, 11(7) |
| Autor Inst. Ser./Col.: | Multidisciplinary Digital Publishing Institute. MDPI. Basilea. Suiza |
| Idioma: | eng |
| Datos de Edición: | s.l. MDPI. 2021. |
| Pág./Vol.: | 15p. |
| Unidad técnica: | INTI-Micro y Nanotecnologías. |
| Descriptores: | Biosensores; Métodos electroquímicos; Impresiones; Tintas; Nanotubos de carbono; Nanopartículas; Silicio |
| Resumen: | Enzyme inks can be inkjet printed to fabricate enzymatic biosensors. However, inks containing enzymes present a low shelf life because enzymes in suspension rapidly lose their catalytic activity. Other major problems of printing these inks are the non-specific adsorption of enzymes onto the chamber walls and stability loss during printing as a result of thermal and/or mechanical stress. It is well known that the catalytic activity can be preserved for significantly longer periods of time and to harsher operational conditions when enzymes are immobilized onto adequate surfaces. Therefore, in this work, horseradish peroxidase was covalently immobilized onto silica nanoparticles. Then, the nanoparticles were mixed into an aqueous ink containing single walled carbon nanotubes. Electrodes printed with this specially formulated ink were characterized, and enzyme electrodes were printed. To test the performance of the enzyme electrodes, a complete amperometric hydrogen peroxide biosensor was fabricated by inkjet printing. The electrochemical response of the printed electrodes was evaluated by cyclic voltammetry in solutions containing redox species, such as hexacyanoferrate (III/II) ions or hydroquinone. The response of the enzyme electrodes was studied for the amperometric determination of hydrogen peroxide. Three months after the ink preparation, the printed enzyme electrodes were found to still exhibit similar sensitivity, demonstrating that catalytic activity is preserved in the proposed ink. Thus, enzyme electrodes can be successfully printed employing highly stable formulation using nanoparticles as carriers. |
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URL: |
https://www.mdpi.com/2079-4991/11/7/1645 |
| Tipo de Docum.: | documento de conferencia |
| Título: | Smartphone controlled platform for point-of-care diagnosis of infectious diseases |
| Autor: | Salomón, Francisco; Tropea, Salvador; Brengi, Diego; Hernández, Ariel; Alamón, Diego; Parra, Matías; Longinotti, Gloria; Ybarra, Gabriel; Lloret, Paulina; Mass, Mijal; Roberti, Mariano; Lloret, Matías; Malatto, Laura; Moina, Carlos; Fraigi, Liliana; Melli, Luciano; Cortina, María Eugenia; Rey Serantes, Diego; Ugalde, Juan E.; Ciocchini, Andrés; Comerci, Diego J. |
| Reunión: | International Meeting on Chemical Sensors (IMCS), Buenos Aires. AR, 2014 |
| Idioma: | eng |
| Datos de Edición: | s.l. s.n. 2014. |
| Pág./Vol.: | 4p. |
| Descriptores: | Telefonía móvil; Enfermedades infecciosas; Diagnóstico; Software; Hardware; Biosensores; Sensores electroquímicos; Sensores biomédicos |
| Resumen: | In this work, we present the development of a point-of-care platform for the serologic diagnosis of infectious diseases. The complete system consists of magnetic particles with immobilized antigens, disposable electrochemical cells, hardware and software. The main purpose of this paper is to present the last two components. The platform is powered by a rechargeable battery and can be controlled using mobile devices, allowing point-of-care diagnosis of diseases. The platform was successfully tested for the diagnosis of foot-and-mouth disease, human and bovine brucellosis, and Chagas disease. |
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URL: |
https://www.researchgate.net/publication/266851477 |
| Tipo de Docum.: | documento de conferencia |
| Título: | Plataforma de biosensores para diagnóstico de enfermedades infecciosas |
| Autor: | Moina, Carlos; Longinotti, Gloria; Lloret, Paulina; Melli, Luciano; Ybarra, Gabriel; Rey Serantes, Diego; Comerci, Diego; Ciocchini, Andrés; Ugalde, Juan; Malatto, Laura; Mass, Mijal; Roberti, Mariano; Brengi, Diego; Tropea, Salvador; Fraigi, Liliana; Lloret, Matías |
| Autor Instit.: | INTI-Procesos Superficiales. Buenos Aires. AR; Instituto de Investigaciones Biotecnologicas. Universidad Nacional de San Martín. IIB-UNSAM. AR; INTI-Electrónica e Informática. Buenos Aires. AR; INTI-Caucho. Buenos Aires. AR |
| Reunión: | Instituto Nacional de Tecnología Industrial. INTI. Buenos Aires. AR, Encuentro de primavera 2011, Encuentro INTI, 10, Buenos Aires. AR, 2011 |
| Idioma: | spa |
| Datos de Edición: | Buenos Aires. AR. INTI. 2011. |
| Pág./Vol.: | p.306-307. |
| Notas: | Tema 07: Los nuevos productos argentinos, P11207. |
| Unidad técnica: | INTI-Procesos superficiales; INTI-Electrónica e Informática. |
| Descriptores: | Biosensores; Diagnóstico; Enfermedades infecciosas; Sensores electroquímicos; Detección; Anticuerpos; Antígenos; Señales; Métodos electroquímicos; Inmunosensores; Electrodos; Nanopartículas; Instrumentos electrónicos |
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| Ubicación: | 4686 |
| Disponibilidad: | Consulta in situ |
| Tipo de Docum.: | documento de conferencia |
| Título: | Tecnología LTCC y fine-line |
| Autor: | Mass, Mijal; Roberti, Mariano; Di Vruno, Federico; Malatto, Laura; Fraigi, Liliana |
| Autor Instit.: | INTI-Electrónica e Informática. Buenos Aires. AR; Universidad Tecnológica Nacional, Facultad regional Buenos Aires. UTN. AR |
| Reunión: | Instituto Nacional de Tecnología Industrial. INTI. Buenos Aires. AR, Encuentro de primavera 2011, Encuentro INTI, 10, Buenos Aires. AR, 2011 |
| Idioma: | spa |
| Datos de Edición: | Buenos Aires. AR. INTI. 2011. |
| Pág./Vol.: | p.294-295. |
| Notas: | Tema 07: Los nuevos productos argentinos, P11175. |
| Unidad técnica: | INTI-Electrónica e Informática. |
| Descriptores: | Dispositivos electrónicos; Bajas temperaturas; Materiales cerámicos; Películas gruesas; Microelectrónica; Conductividad térmica |
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Trabajo de INTI |
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| Ubicación: | 4686 |
| Disponibilidad: | Consulta in situ |
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