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Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
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is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
Instructions to authors
English 日本語
Instructions for manuscript preparation
English 日本語
Template
English
Publisher
MYU K.K.
Sensors and Materials
1-23-3-303 Sendagi,
Bunkyo-ku, Tokyo 113-0022, Japan
Tel: 81-3-3827-8549
Fax: 81-3-3827-8547
MYU Research, a scientific publisher, seeks a native English-speaking proofreader with a scientific background. B.Sc. or higher degree is desirable. In-office position; work hours negotiable. Call 03-3827-8549 for further information.
MYU Research
(proofreading and recording)
MYU K.K.
(translation service)
The Art of Writing Scientific Papers
(How to write scientific papers)
(Japanese Only)
Sensors and Materials, Volume 33, Number 10(3) (2021)
Copyright(C) MYU K.K.
Copyright(C) MYU K.K.
|
pp. 3635-3643
S&M2714 Research Paper https://doi.org/10.18494/SAM.2021.3589 Published: October 29, 2021 Novel Photothermal Aptamer-based Sensing System for Highly Ultrasensitive Detection of Ochratoxin A [PDF] Pinzhu Qin, Ying Guan, and Yige Qiu (Received August 18, 2021; Accepted September 29, 2021) Keywords: aptamer, linear range, nanoparticles, ochratoxin A, temperature
We developed a photothermal sensing system based on the photothermal effect of the Tetramethyl benzidine/Hydrogen Peroxide (TMB-H2O2) colorimetric system mediated by Fe3O4 nanoparticles. The ochratoxin A (OTA) aptamer can bind OTA particles with high affinity and specificity. The charge transfer complex of the single electron oxidation product of TMB (oxidized TMB) acts as a photothermal probe to convert the recognition signal into heat, allowing sensitive and quantitative photothermal detection using only a thermometer. In the proposed sensing system, the temperature change varied with the concentration of OTA. The aptamer-based sensing system provides a wide detection range for OTA from 0.25 nM to 2500 μM. We provide a new approach for the detection of mycotoxins because of the advantages of the simple readout method, low sample consumption, and lower detection cost.
Corresponding author: Pinzhu Qin  This work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Pinzhu Qin, Ying Guan, and Yige Qiu, Novel Photothermal Aptamer-based Sensing System for Highly Ultrasensitive Detection of Ochratoxin A, Sens. Mater., Vol. 33, No. 10, 2021, p. 3635-3643. |
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