Staff View: “A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.

“A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.

A core-shell cerium oxide nanorod@polypyrrole (CeO2-NR@Ppy) nanocomposite-based electrochemical DNA biosensor was studied for Salmonella detection. The core-shell CeO2-NR@Ppy nanocomposite was prepared by in situ chemical oxidative polymerization of pyrrole monomer on CeO2-NRs, which provided a suit...

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Bibliographic Details
Main Author:	Nguyen Thi Nguyet
Other Authors:	Le Thi Hai Yen
Published:	Elsevier 2020
Online Access:	https://dlib.phenikaa-uni.edu.vn/handle/PNK/322 https://doi.org/10.1016/j.msec.2018.11.059
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spelling	oai:localhost:PNK-3222022-08-17T05:54:44Z “A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797. Nguyen Thi Nguyet Le Thi Hai Yen Vu Y. Doan Nguyen Luong Hoang Vu Van Thu Hoang lan Tran Trung Vuong-Hung Pham Phuong Dinh Tam A core-shell cerium oxide nanorod@polypyrrole (CeO2-NR@Ppy) nanocomposite-based electrochemical DNA biosensor was studied for Salmonella detection. The core-shell CeO2-NR@Ppy nanocomposite was prepared by in situ chemical oxidative polymerization of pyrrole monomer on CeO2-NRs, which provided a suitable platform for electrochemical DNA biosensor fabrication. The immobilization of ss-DNA sequences onto nanocompositecoated microelectrode was performed via covalent attachment method. DNA biosensor electrochemical responses were studied by cyclic voltammetry and electrochemical impedance spectroscopy with [Fe (CN)6] 3−/4− as redox probe. Under optimal conditions, DNA biosensor response showed good linearity in the range of 0.01–0.4 nM with sensitivity of 593.7 Ω·nM−1·cm−2. The low limit of detection and limit of quantification for the DNA biosensor were 0.084 and 0.28 nM, respectively. The proposed DNA biosensor also showed good results when used in detecting actual Salmonella samples. 2020-04-29T07:53:14Z 2020-04-29T07:53:14Z 2019 bccb00049 https://dlib.phenikaa-uni.edu.vn/handle/PNK/322 https://doi.org/10.1016/j.msec.2018.11.059 application/pdf Elsevier
institution	Digital Phenikaa
collection	Digital Phenikaa
description	A core-shell cerium oxide nanorod@polypyrrole (CeO2-NR@Ppy) nanocomposite-based electrochemical DNA biosensor was studied for Salmonella detection. The core-shell CeO2-NR@Ppy nanocomposite was prepared by in situ chemical oxidative polymerization of pyrrole monomer on CeO2-NRs, which provided a suitable platform for electrochemical DNA biosensor fabrication. The immobilization of ss-DNA sequences onto nanocompositecoated microelectrode was performed via covalent attachment method. DNA biosensor electrochemical responses were studied by cyclic voltammetry and electrochemical impedance spectroscopy with [Fe (CN)6] 3−/4− as redox probe. Under optimal conditions, DNA biosensor response showed good linearity in the range of 0.01–0.4 nM with sensitivity of 593.7 Ω·nM−1·cm−2. The low limit of detection and limit of quantification for the DNA biosensor were 0.084 and 0.28 nM, respectively. The proposed DNA biosensor also showed good results when used in detecting actual Salmonella samples.
author2	Le Thi Hai Yen
author_facet	Le Thi Hai Yen Nguyen Thi Nguyet
author	Nguyen Thi Nguyet
spellingShingle	Nguyen Thi Nguyet “A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.
author_sort	Nguyen Thi Nguyet
title	“A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.
title_short	“A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.
title_full	“A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.
title_fullStr	“A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.
title_full_unstemmed	“A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.
title_sort	“a label-free and highly sensitive dna biosensor based on the core-shell structured ceo2-nr@ppy nanocomposite for salmonella detection”, materials science and engineering: c 96 (2019) 790-797.
publisher	Elsevier
publishDate	2020
url	https://dlib.phenikaa-uni.edu.vn/handle/PNK/322 https://doi.org/10.1016/j.msec.2018.11.059
_version_	1751856268646023168
score	8.891145

“A label-free and highly sensitive DNA biosensor based on the core-shell structured CeO2-NR@Ppy nanocomposite for Salmonella detection”, Materials Science and Engineering: C 96 (2019) 790-797.

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