Comparative Studies of CPEs Modified with Distinctive Metal Nanoparticle-Decorated Electroactive Polyimide for the Detection of UA.
electroactive
electrochemical sensor
nanoparticles
polyimide
uric acid
Journal
Polymers
ISSN: 2073-4360
Titre abrégé: Polymers (Basel)
Pays: Switzerland
ID NLM: 101545357
Informations de publication
Date de publication:
13 Jan 2021
13 Jan 2021
Historique:
received:
15
12
2020
revised:
25
12
2020
accepted:
08
01
2021
entrez:
16
1
2021
pubmed:
17
1
2021
medline:
17
1
2021
Statut:
epublish
Résumé
In this present work, an electrochemical sensor was developed for the sensing of uric acid (UA). The sensor was based on a carbon paste electrode (CPE) modified with electroactive polyimide (EPI) synthesized using aniline tetramer (ACAT) decorated with reduced nanoparticles (NPs) of Au, Pt, and Ag. The initial step involved the preparation and characterization of ACAT. Subsequently, the ACAT-based EPI synthesis was performed by chemical imidization of its precursors 4,4'-(4.4'-isopropylidene-diphenoxy) bis (phthalic anhydride) BPADA and ACAT. Then, EPI was doped with distinctive particles of Ag, Pt and Au, and the doped EPIs were abbreviated as EPIS, EPIP and EPIG, respectively. Their structures were characterized by XRD, XPS, and TEM, and the electrochemical properties were determined by cyclic voltammetry and chronoamperometry. Among these evaluated sensors, EPI with Au NPs turned out the best with a sensitivity of 1.53 uA uM
Identifiants
pubmed: 33451036
pii: polym13020252
doi: 10.3390/polym13020252
pmc: PMC7828535
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Ministry of Science and Technology, Taiwan
ID : MOST-109-2113-M-033-002-
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