title: Resistance-based biosensor of Multi-Walled Carbon Nanotubes.
abstract: 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.
authors.affiliation: a Universidad Autónoma de San Luis Potosí, Coordinación para la Innovación y la Aplicación de la Ciencia y la Tecnología , San Luis Potosí , México.
authors.forename: E S
authors.initials: ES
authors.lastname: Kolosovas-Machuca
authors.forename: G
authors.initials: G
authors.lastname: Vera-Reveles
authors.forename: M C
authors.initials: MC
authors.lastname: Rodríguez-Aranda
authors.forename: L C
authors.initials: LC
authors.lastname: Ortiz-Dosal
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Segura-Cardenas
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Gonzalez
mesh_terms: D000906:Antibodies / Q000737:chemistry; D015374:Biosensing Techniques; D017097:Electric Impedance; D008855:Microscopy, Electron, Scanning; D037742:Nanotubes, Carbon / Q000737:chemistry / Q000648:ultrastructure; D011437:Propylamines; D012710:Serum Albumin, Bovine / Q000737:chemistry / Q000276:immunology; D012821:Silanes / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman
chemical_list: D000906:Antibodies; D037742:Nanotubes, Carbon; D011437:Propylamines; D012821:Silanes; D012710:Serum Albumin, Bovine; C477625:amino-propyl-triethoxysilane
keywords: biosensor; multi-walled carbon nanotubes; resistive sensor