Author, as appears in the article.: Casanova-Chafer, Juan; Garcia-Aboal, Rocio; Atienzar, Pedro; Bittencourt, Carla; Llobet, Eduard;

Department: Enginyeria Electrònica, Elèctrica i Automàtica

URV's Author/s: Casanova Chafer, Juan / Llobet Valero, Eduard

Keywords: Biomarkers Breath analysis Chemical-reduction Covalent functionalization Ethanol sensing performance Films Gas sensor Gas sensors Graphene Lafeo3 nanoparticles Metal halide perovskites Nanorod arrays No2 Oxide rgo Perovskite

Abstract: Nanohybrids comprising graphene loaded with perovskite nanocrystals have been demonstrated as a potential option for sensing applications. Specifically, their combination presents an interesting synergistic effect owing to greater sensitivity when bare graphene is decorated with perovskites. In addition, since the main drawback of perovskites is their instability towards ambient moisture, the hydrophobic properties of graphene can protect them, enabling their use for ambient monitoring, as previously reported. However not limited to this, the present work provides a proof-of-concept to likewise employ them in a potential application as breath analysis for the detection of health-related biomarkers. There is a growing demand for sensitive, non-invasive, miniaturized, and inexpensive devices able to detect specific gas molecules in human breath. Sensors gathering these requirements may be employed as a screening tool for reliable and fast detection of potential health issues. Moreover, perovskite@graphene nanohybrids present additional properties highly desirable as the capability to be operated at room temperature (i.e., reduced power consumption), reversible interaction with gases (i.e., reusability), and long-term stability. Within this perspective, the combination of both nanomaterials, perovskite nanocrystals and graphene, possibly includes the main requirements needed, being a promising option to be employed in the next generation of sensing devices.

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

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: eduard.llobet@urv.cat juan.casanova@urv.cat

Author identifier: 0000-0001-6164-4342

Record's date: 2023-05-14

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.mdpi.com/2227-9040/9/8/215

Papper original source: Chemosensors (Basel). 9 (8):

APA: Casanova-Chafer, Juan; Garcia-Aboal, Rocio; Atienzar, Pedro; Bittencourt, Carla; Llobet, Eduard; (2021). Perovskite@Graphene Nanohybrids for Breath Analysis: A Proof-of-Concept. Chemosensors (Basel), 9(8), -. DOI: 10.3390/chemosensors9080215

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Article's DOI: 10.3390/chemosensors9080215

Entity: Universitat Rovira i Virgili

Journal publication year: 2021

Publication Type: Journal Publications