Resistance-Based Biosensor of Multi-Walled Carbon Nanotubes

Multi-Walled Carbon Nanotubes (MWNTs) are a good choice for resistive biosensors due to their great resistance changes when immunoreactions take place, they are also low-cost, more biocompatible than single-walled carbon nanotubes, and resistive measurement equipment is usually not expensive and rea...

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Detalles Bibliográficos
Autor: Ortiz-Dosal, Luis Carlos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:México
Institución:Universidad Autónoma de Zacatecas
Repositorio:Repositorio Institucional Caxcán
Idioma:inglés
OAI Identifier:oai:http://ricaxcan.uaz.edu.mx:20.500.11845/1990
Acceso en línea:http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/1990
Access Level:acceso abierto
Palabra clave:CIENCIAS FISICO MATEMATICAS Y CIENCIAS DE LA TIERRA [1]
Biosensor
multi-walled carbon nanotubes
resistive sensor
Descripción
Sumario:Multi-Walled Carbon Nanotubes (MWNTs) are a good choice for resistive biosensors due to their great resistance changes when immunoreactions take place, they are also low-cost, more biocompatible than single-walled carbon nanotubes, and resistive measurement equipment is usually not expensive and readily available. In this work a novel resistive biosensor based on the immobilization of an antigen through a silanization process over the surface of Multi-Walled Carbon Nanotubes (MWNTs) is reported. Results show that the biosensor increases its conductivity when adding the antigen and decreases when adding the antibody making them good candidates for disease diagnosis.