Title
Biomimetic magnetic sensor for electrochemical determination of scombrotoxin in fish
Date Issued
01 March 2019
Access level
open access
Resource Type
editorial
Author(s)
Hassan A.H.A.
Sappia L.
Moura S.L.
Ali F.H.M.
Moselhy W.A.
Pividori M.I.
State University of São Paulo
Publisher(s)
Elsevier B.V.
Abstract
This work addresses a novel, rapid and cost-effective approach for the electrochemical sensing of scombrotoxin (histamine) in fish based on magnetic molecularly imprinted polymer (magnetic-MIP). The histamine magnetic-MIP was synthesized by the core-shell method using histamine as a template, and 2-vinyl pyridine as functional monomer. The magnetic-MIP was characterized by TEM, SEM, and confocal microscopy. Additionally, the binding capacity of magnetic-MIP towards histamine was investigated and compared with magnetic non-molecularly imprinted polymer (magnetic-NIP). This biomimetic material merged the advantages of MIPs and magnetic particles (MPs), including low cost of production, stability, high binding capacity and can be easily separated by the aid of a permanent magnet. The magnetic-MIP was integrated into magneto-actuated electrodes for the direct electrochemical detection of histamine preconcentrated from fish samples. The results revealed that this approach succeeded in the preconcentration and determination of histamine with a LOD as low as 1.6 × 10−6 mg L−1, much lower than the index for fish spoilage (50 mg kg−1) accordingly to the legislation. Furthermore, the analytical performance was validated for the determination of histamine in scombroid fish samples with recovery values ranging from 96.8 to 102.0 %, confirm so it can be applied easily for routine food examination.
Start page
997
End page
1004
Volume
194
Language
English
OCDE Knowledge area
Electroquímica
Bioquímica, Biología molecular
Subjects
Scopus EID
2-s2.0-85056723247
PubMed ID
Source
Talanta
ISSN of the container
0039-9140
Sponsor(s)
Financial support from the Ministry of Economy and Competitiveness (MINECO), Spain, (Grants BIO2013-41242-R and BIO2016-75751-R ), CNPq, Brazil, (Grants 306650/2016-9 and 465571/2014-0) and FAPESP, Brazil, (Grant 2014/50945-4) are gratefully acknowledged. Egyptian Government and Conselho Nacional de Desenvolvimento Científico e Tecnológico, Ministry of Science, Technology, Innovation and Communications of Brazil (Grant 233595/2014-7) are also gratefully acknowledged.
Sources of information:
Directorio de Producción Científica
Scopus