Graphene based electrochemical immunosensor for the ultra-sensitive label free detection of Alzheimer's beta amyloid peptides Aβ(1-42).


Journal

Nanoscale advances
ISSN: 2516-0230
Titre abrégé: Nanoscale Adv
Pays: England
ID NLM: 101738708

Informations de publication

Date de publication:
20 Apr 2021
Historique:
received: 28 09 2020
accepted: 17 02 2021
entrez: 22 9 2022
pubmed: 20 2 2021
medline: 20 2 2021
Statut: epublish

Résumé

An immunosensor capable of high sensitivity detection of beta-amyloid peptides, shown to be a reliable biomarker for Alzheimer's disease, has been developed using screen printed graphene electrodes (SPGEs) modified with ultra-thin layers of polymerised 1,5-diaminonaphthalene (pDAN). Electropolymerization of 1,5-diaminonaphthalene (DAN) was performed to coat the graphene screen printed electrodes in a continuous polymer layer with controlled thickness. The surface characteristics of pristine graphene and polymer modified graphene electrodes were examined using Raman and X-ray photoelectron spectroscopy. The effects of polymer thickness on the electron transfer rates were investigated. An immunosensor for selective detection of beta amyloid peptides Aβ(1-42) was developed

Identifiants

pubmed: 36133757
doi: 10.1039/d0na00801j
pii: d0na00801j
pmc: PMC9419744
doi:

Types de publication

Journal Article

Langues

eng

Pagination

2295-2304

Informations de copyright

This journal is © The Royal Society of Chemistry.

Déclaration de conflit d'intérêts

The authors declare no conflict of interest.

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Auteurs

Hina Y Abbasi (HY)

Centre for NanoHealth, College of Engineering, Swansea University Swansea SA2 8PP UK h.y.abbasi@swansea.ac.uk o.j.guy@swansea.ac.uk +44 (0) 1792 606475 +44 (0) 1792 513181.
Department of Chemistry, College of Science, Swansea University Swansea SA2 8PP UK.

Zari Tehrani (Z)

Centre for NanoHealth, College of Engineering, Swansea University Swansea SA2 8PP UK h.y.abbasi@swansea.ac.uk o.j.guy@swansea.ac.uk +44 (0) 1792 606475 +44 (0) 1792 513181.
Department of Chemistry, College of Science, Swansea University Swansea SA2 8PP UK.

Anitha Devadoss (A)

Centre for NanoHealth, College of Engineering, Swansea University Swansea SA2 8PP UK h.y.abbasi@swansea.ac.uk o.j.guy@swansea.ac.uk +44 (0) 1792 606475 +44 (0) 1792 513181.
Department of Chemistry, College of Science, Swansea University Swansea SA2 8PP UK.

Muhammad Munem Ali (MM)

Centre for NanoHealth, College of Engineering, Swansea University Swansea SA2 8PP UK h.y.abbasi@swansea.ac.uk o.j.guy@swansea.ac.uk +44 (0) 1792 606475 +44 (0) 1792 513181.

Soraya Moradi-Bachiller (S)

Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS Via La Masa 19 20156 Milan Italy.

Diego Albani (D)

Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS Via La Masa 19 20156 Milan Italy.

Owen J Guy (OJ)

Centre for NanoHealth, College of Engineering, Swansea University Swansea SA2 8PP UK h.y.abbasi@swansea.ac.uk o.j.guy@swansea.ac.uk +44 (0) 1792 606475 +44 (0) 1792 513181.
Department of Chemistry, College of Science, Swansea University Swansea SA2 8PP UK.

Classifications MeSH