A Novel Cortisol Immunosensor Based on a Hafnium Oxide/Silicon Structure for Heart Failure Diagnosis.
capacitance
cortisol
electrochemical impedance spectroscopy
hafnium oxide
heart failure
Journal
Micromachines
ISSN: 2072-666X
Titre abrégé: Micromachines (Basel)
Pays: Switzerland
ID NLM: 101640903
Informations de publication
Date de publication:
16 Dec 2022
16 Dec 2022
Historique:
received:
29
11
2022
revised:
12
12
2022
accepted:
14
12
2022
entrez:
23
12
2022
pubmed:
24
12
2022
medline:
24
12
2022
Statut:
epublish
Résumé
Assessing cortisol levels in human bodies has become essential to diagnose heart failure (HF). In this work, we propose a salivary cortisol detection strategy as part of an easily integrable lab-on-a-chip for detection of HF biomarkers. Our developed capacitive immunosensor based on hafnium oxide (HfO2)/silicon structure showed good linearity between increasing cortisol concentration and the charge-transfer resistance/capacitance. Moreover, the developed biosensor was demonstrated to be highly selective toward cortisol compared to other HF biomarkers such as tumor necrosis factor (TNF-α) and N-terminal pro-brain natriuretic peptide (NT-proBNP). The precision of our developed biosensor was evaluated, and the difference between the determined cortisol concentration in saliva and its expected one is <18%.
Identifiants
pubmed: 36557534
pii: mi13122235
doi: 10.3390/mi13122235
pmc: PMC9786208
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : European Union's Horizon 2020 research and innovation program, Project NMBP-13-2017 KardiaTool
ID : Grant agreement No. 768686
Organisme : POC4allergies project
ID : Grant Agreement No. 768686
Organisme : Bionanosens project
ID : Grant agreement No. 951887
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