Titre :

Heterolayered films of monolayer WS2 nanosheets on monolayer graphene embedded in poly(methyl methacrylate) for plasmonic biosensing

Auteur(s) :

Das, Chandreyee Manas [Auteur]
Kang, Lixing [Auteur]
Chen Ming, Wei [Auteur]
Coquet, Philippe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Yong, Ken-Tye [Auteur]

Titre de la revue :

Acs Applied Nano Materials

Pagination :

10446-10453

Éditeur :

American Chemical Society

Date de publication :

2020-10-23

ISSN :

2574-0970

Mot(s)-clé(s) en anglais :

plasmonic biosensing
heterolayered two-dimensional material
bovine serum albumin and antibovine serum albumin coupling
graphene-WS2
surface plasmon resonance biosensor

Discipline(s) HAL :

Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

The interplay between light photons and nanomaterials can give rise to many striking phenomena. Surface plasmon resonance (SPR), which is one such plasmonic sensing mechanism, is gaining much attention from the biomedical ...
Lire la suite >The interplay between light photons and nanomaterials can give rise to many striking phenomena. Surface plasmon resonance (SPR), which is one such plasmonic sensing mechanism, is gaining much attention from the biomedical fraternity. Two-dimensional (2D) nanomaterials like transition-metal dichalcogenides (TMDCs) and graphenes are recently discovered nanomaterials that have favorable properties like high optical absorption. These materials have been applied extensively in the fields of drug delivery and cancer therapy. However, their applications in the area of plasmonic biosensing need to be explored more. Hence, using commercial SPR sensors, we demonstrate the effectiveness of heterostructured monolayer nanosheets of graphene and WS2 for a plasmonic-based detection system of a specific ligand-analyte interaction between bovine serum albumin (BSA) and anti-BSA. Our detection technique does not require any complex functionalization scheme as the graphene-WS2 nanosheet-coated gold chip can attach protein molecules through hydrophobic interactions. The limit of detection (LOD) obtained for the anti-BSA protein is 0.44 μg/mL.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Projet ANR :

Méta-surfaces à base de nanomatériaux 2D pour une détection plasmonique ultrasensible

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL