Functionalized magnetic nanoparticle with poly(3-thiopheneacetic acid) and its application for electrogenerated chemiluminescence sensor

Young Ku Lyu; Kyu Jin Kyung; Won Yong Lee

doi:10.1016/j.synthmet.2008.11.021

Functionalized magnetic nanoparticle with poly(3-thiopheneacetic acid) and its application for electrogenerated chemiluminescence sensor

Young Ku Lyu, Kyu Jin Kyung, Won Yong Lee

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Polymer-coated magnetic nanoparticles (MNPs) have been prepared and used as an immobilization matrix for the fabrication of solid-state tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)₃²⁺) electrogenerated chemiluminescence (ECL) sensor. The pre-synthesized maghemite (γ-Fe₂O₃) MNPs were coated with poly(3-thiopheneacetic acid) based on an oxidative polymerization method using KMnO₄. The poly(3-thiopheneacetic acid)-coated MNPs have formed the clusters with average diameter of 200-500 nm. The multilayer films of poly(3-thiopheneacetic acid)-coated MNPs were uniformly formed on the surface of a Pt electrode by an external magnet. The Ru(bpy)₃²⁺ was rapidly incorporated into the multilayer films within 5 min through the electrostatic interaction between the Ru(bpy)₃²⁺ and the negatively charged carboxylates of 3-thiopheneacetic acid at pH 7.0. Due to the fast mass transport in the multilayer films of the functionalized MNPs, the present Ru(bpy)₃²⁺ ECL sensor based on the functionalized MNPs showed improved ECL sensitivity for tripropylamine (TPA) compared to the Nafion-based ECL sensor. The present ECL sensor exhibited a quite low limit of detection for TPA (49 nM). The sensor-to-sensor reproducibility was very good (R.S.D. = 5%).

Original language	English
Pages (from-to)	571-575
Number of pages	5
Journal	Synthetic Metals
Volume	159
Issue number	7-8
DOIs	https://doi.org/10.1016/j.synthmet.2008.11.021
Publication status	Published - 2009 Apr

Bibliographical note

Funding Information:
This work was supported by Korea Research Foundation Grant (KRF-2007-C-00484) and Yonsei-CBMH. K.J.K., Y.K.L and J.H.H acknowledge the support of the BK 21 program of the Ministry of Education and Science.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.synthmet.2008.11.021

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@article{d277b328e8cb4062ab60f912a2b7ae58,

title = "Functionalized magnetic nanoparticle with poly(3-thiopheneacetic acid) and its application for electrogenerated chemiluminescence sensor",

abstract = "Polymer-coated magnetic nanoparticles (MNPs) have been prepared and used as an immobilization matrix for the fabrication of solid-state tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)32+) electrogenerated chemiluminescence (ECL) sensor. The pre-synthesized maghemite (γ-Fe2O3) MNPs were coated with poly(3-thiopheneacetic acid) based on an oxidative polymerization method using KMnO4. The poly(3-thiopheneacetic acid)-coated MNPs have formed the clusters with average diameter of 200-500 nm. The multilayer films of poly(3-thiopheneacetic acid)-coated MNPs were uniformly formed on the surface of a Pt electrode by an external magnet. The Ru(bpy)32+ was rapidly incorporated into the multilayer films within 5 min through the electrostatic interaction between the Ru(bpy)32+ and the negatively charged carboxylates of 3-thiopheneacetic acid at pH 7.0. Due to the fast mass transport in the multilayer films of the functionalized MNPs, the present Ru(bpy)32+ ECL sensor based on the functionalized MNPs showed improved ECL sensitivity for tripropylamine (TPA) compared to the Nafion-based ECL sensor. The present ECL sensor exhibited a quite low limit of detection for TPA (49 nM). The sensor-to-sensor reproducibility was very good (R.S.D. = 5%).",

author = "Lyu, {Young Ku} and Kyung, {Kyu Jin} and Lee, {Won Yong}",

note = "Funding Information: This work was supported by Korea Research Foundation Grant (KRF-2007-C-00484) and Yonsei-CBMH. K.J.K., Y.K.L and J.H.H acknowledge the support of the BK 21 program of the Ministry of Education and Science.",

year = "2009",

month = apr,

doi = "10.1016/j.synthmet.2008.11.021",

language = "English",

volume = "159",

pages = "571--575",

journal = "Synthetic Metals",

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T1 - Functionalized magnetic nanoparticle with poly(3-thiopheneacetic acid) and its application for electrogenerated chemiluminescence sensor

AU - Lyu, Young Ku

AU - Kyung, Kyu Jin

AU - Lee, Won Yong

N1 - Funding Information: This work was supported by Korea Research Foundation Grant (KRF-2007-C-00484) and Yonsei-CBMH. K.J.K., Y.K.L and J.H.H acknowledge the support of the BK 21 program of the Ministry of Education and Science.

PY - 2009/4

Y1 - 2009/4

N2 - Polymer-coated magnetic nanoparticles (MNPs) have been prepared and used as an immobilization matrix for the fabrication of solid-state tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)32+) electrogenerated chemiluminescence (ECL) sensor. The pre-synthesized maghemite (γ-Fe2O3) MNPs were coated with poly(3-thiopheneacetic acid) based on an oxidative polymerization method using KMnO4. The poly(3-thiopheneacetic acid)-coated MNPs have formed the clusters with average diameter of 200-500 nm. The multilayer films of poly(3-thiopheneacetic acid)-coated MNPs were uniformly formed on the surface of a Pt electrode by an external magnet. The Ru(bpy)32+ was rapidly incorporated into the multilayer films within 5 min through the electrostatic interaction between the Ru(bpy)32+ and the negatively charged carboxylates of 3-thiopheneacetic acid at pH 7.0. Due to the fast mass transport in the multilayer films of the functionalized MNPs, the present Ru(bpy)32+ ECL sensor based on the functionalized MNPs showed improved ECL sensitivity for tripropylamine (TPA) compared to the Nafion-based ECL sensor. The present ECL sensor exhibited a quite low limit of detection for TPA (49 nM). The sensor-to-sensor reproducibility was very good (R.S.D. = 5%).

AB - Polymer-coated magnetic nanoparticles (MNPs) have been prepared and used as an immobilization matrix for the fabrication of solid-state tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)32+) electrogenerated chemiluminescence (ECL) sensor. The pre-synthesized maghemite (γ-Fe2O3) MNPs were coated with poly(3-thiopheneacetic acid) based on an oxidative polymerization method using KMnO4. The poly(3-thiopheneacetic acid)-coated MNPs have formed the clusters with average diameter of 200-500 nm. The multilayer films of poly(3-thiopheneacetic acid)-coated MNPs were uniformly formed on the surface of a Pt electrode by an external magnet. The Ru(bpy)32+ was rapidly incorporated into the multilayer films within 5 min through the electrostatic interaction between the Ru(bpy)32+ and the negatively charged carboxylates of 3-thiopheneacetic acid at pH 7.0. Due to the fast mass transport in the multilayer films of the functionalized MNPs, the present Ru(bpy)32+ ECL sensor based on the functionalized MNPs showed improved ECL sensitivity for tripropylamine (TPA) compared to the Nafion-based ECL sensor. The present ECL sensor exhibited a quite low limit of detection for TPA (49 nM). The sensor-to-sensor reproducibility was very good (R.S.D. = 5%).

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Functionalized magnetic nanoparticle with poly(3-thiopheneacetic acid) and its application for electrogenerated chemiluminescence sensor

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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