Autor según el artículo: Thamri, Atef; Baccar, Hamdi; Casanova-Chafer, Juan; Mejri, Moataz Billeh; Llobet, Eduard; Abdelghani, Adnane;

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

Autor/es de la URV: Casanova Chafer, Juan / Llobet Valero, Eduard

Palabras clave: Volatile organic-compounds Vapor Thiol-amine Sensors Sensing properties Self-assembled monolayer Metal decoration Lung-cancer Gas sensing Films Exhaled breath Electronic nose Discrimination Conductivity Carbon nanotubes Biomarkers detection

Resumen: Thousands of gas molecules are expelled in exhaled breath, and some of them can reveal diseases and metabolomic disorders. For that reason, the development of fast, inexpensive, and reliable sensing devices has been attracting growing interest. Here, we present the development of different chemoresistors based on multi-walled carbon nanotubes (MWCNTs) decorated with platinum (MWCNT/Pt) and palladium (MWCNT/Pt) nanoparticles and also functionalized with a self-assembled monolayer (SAM) of 11-amino-1-undecanethiol (Thiol-amine). The nanocomposites developed are a proof-of-concept to detect some biomarker molecules. Specifically, the capability to identify and measure different concentrations of volatile organic compounds (VOCs), either aromatic (toluene and benzene) and non-aromatic (ethanol and methanol) was assessed. As a result, this paper reports the significant differences in sensing performance achieved according to the metal nanoparticle used, and the high sensitivity obtained when SAMs are grown on the sensitive film, acting as a receptor for biomarker vapours.

Áreas temáticas: Química Physical and theoretical chemistry Materiais Instruments & instrumentation Farmacia Electrochemistry Ciencias sociales Ciência de alimentos Chemistry, analytical Astronomia / física Analytical chemistry

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

Direcció de correo del autor: juan.casanova@urv.cat eduard.llobet@urv.cat

Identificador del autor: 0000-0001-6164-4342

Fecha de alta del registro: 2023-05-14

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/2227-9040/9/5/87

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Chemosensors (Basel). 9 (5):

Referencia de l'ítem segons les normes APA: Thamri, Atef; Baccar, Hamdi; Casanova-Chafer, Juan; Mejri, Moataz Billeh; Llobet, Eduard; Abdelghani, Adnane; (2021). Thiol-Amine Functionalized Decorated Carbon Nanotubes for Biomarker Gases Detection. Chemosensors (Basel), 9(5), -. DOI: 10.3390/chemosensors9050087

DOI del artículo: 10.3390/chemosensors9050087

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2021

Tipo de publicación: Journal Publications