Recyclable sensitive fluorimetric detection of specific metal ions using a functionalized PEG-PS resin with a fluorescent peptide sensor

Bishnu Prasad Joshi; Joo Young Park; Keun Hyeung Lee

doi:10.1016/j.snb.2013.09.075

Recyclable sensitive fluorimetric detection of specific metal ions using a functionalized PEG-PS resin with a fluorescent peptide sensor

Bishnu Prasad Joshi, Joo Young Park, Keun Hyeung Lee

Inha University

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

16 Scopus citations

Abstract

Previously, we synthesized a fluorescent peptide sensor consisting of heptapeptide for Cu(II) and Zn(II) ions, respectively. The peptide sensor detected Cu(II) ions by turn off response and Zn(II) ions by turn on response among 13 metal ions in aqueous solutions. In the present study, we prepared a functionalized resin by immobilization of the fluorescent peptide sensor into PEG-PS resin beads and investigated the sensing ability for the metal ions in aqueous solutions. The functionalized resin was easily used for detecting heavy metal ions in aqueous solutions using spectrofluorometer with stirrer. The functionalized resin with the peptide sensor showed a selective response to Cu(II) and Zn(II) ions among 13 metal ions in aqueous solutions. The functionalized resin with the peptide sensor, showed a turn off response to Cu(II) and a turn on response to Zn(II) ions in aqueous solutions. The resin showed a very sensitive response to Cu(II) and Zn(II) ions; about 1 equiv of the metal ions was enough to saturate the fluorescent change of the resin. Furthermore, the recycle of the resin bead for detecting metal ions was demonstrated by simply washing of the resin with EDTA solution and fluorescent response for Cu(II) ions.

Original language	English
Pages (from-to)	122-129
Number of pages	8
Journal	Sensors and Actuators B: Chemical
Volume	191
DOIs	https://doi.org/10.1016/j.snb.2013.09.075
State	Published - 2014

Bibliographical note

Funding Information:
This work was supported by a grant ( 201200054 0013) from the Korea Environmental Industry and Technology Institute and a grant ( 2012R1AB3000574) from the National Research Foundation .

Keywords

Chemosensor
Cu(II)
Nanoparticle
Resin
Sensor
Zn(II)

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10.1016/j.snb.2013.09.075

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title = "Recyclable sensitive fluorimetric detection of specific metal ions using a functionalized PEG-PS resin with a fluorescent peptide sensor",

abstract = "Previously, we synthesized a fluorescent peptide sensor consisting of heptapeptide for Cu(II) and Zn(II) ions, respectively. The peptide sensor detected Cu(II) ions by turn off response and Zn(II) ions by turn on response among 13 metal ions in aqueous solutions. In the present study, we prepared a functionalized resin by immobilization of the fluorescent peptide sensor into PEG-PS resin beads and investigated the sensing ability for the metal ions in aqueous solutions. The functionalized resin was easily used for detecting heavy metal ions in aqueous solutions using spectrofluorometer with stirrer. The functionalized resin with the peptide sensor showed a selective response to Cu(II) and Zn(II) ions among 13 metal ions in aqueous solutions. The functionalized resin with the peptide sensor, showed a turn off response to Cu(II) and a turn on response to Zn(II) ions in aqueous solutions. The resin showed a very sensitive response to Cu(II) and Zn(II) ions; about 1 equiv of the metal ions was enough to saturate the fluorescent change of the resin. Furthermore, the recycle of the resin bead for detecting metal ions was demonstrated by simply washing of the resin with EDTA solution and fluorescent response for Cu(II) ions.",

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author = "Joshi, {Bishnu Prasad} and Park, {Joo Young} and Lee, {Keun Hyeung}",

note = "Funding Information: This work was supported by a grant ( 201200054 0013) from the Korea Environmental Industry and Technology Institute and a grant ( 2012R1AB3000574) from the National Research Foundation . ",

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AU - Joshi, Bishnu Prasad

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AU - Lee, Keun Hyeung

N1 - Funding Information: This work was supported by a grant ( 201200054 0013) from the Korea Environmental Industry and Technology Institute and a grant ( 2012R1AB3000574) from the National Research Foundation .

PY - 2014

Y1 - 2014

N2 - Previously, we synthesized a fluorescent peptide sensor consisting of heptapeptide for Cu(II) and Zn(II) ions, respectively. The peptide sensor detected Cu(II) ions by turn off response and Zn(II) ions by turn on response among 13 metal ions in aqueous solutions. In the present study, we prepared a functionalized resin by immobilization of the fluorescent peptide sensor into PEG-PS resin beads and investigated the sensing ability for the metal ions in aqueous solutions. The functionalized resin was easily used for detecting heavy metal ions in aqueous solutions using spectrofluorometer with stirrer. The functionalized resin with the peptide sensor showed a selective response to Cu(II) and Zn(II) ions among 13 metal ions in aqueous solutions. The functionalized resin with the peptide sensor, showed a turn off response to Cu(II) and a turn on response to Zn(II) ions in aqueous solutions. The resin showed a very sensitive response to Cu(II) and Zn(II) ions; about 1 equiv of the metal ions was enough to saturate the fluorescent change of the resin. Furthermore, the recycle of the resin bead for detecting metal ions was demonstrated by simply washing of the resin with EDTA solution and fluorescent response for Cu(II) ions.

AB - Previously, we synthesized a fluorescent peptide sensor consisting of heptapeptide for Cu(II) and Zn(II) ions, respectively. The peptide sensor detected Cu(II) ions by turn off response and Zn(II) ions by turn on response among 13 metal ions in aqueous solutions. In the present study, we prepared a functionalized resin by immobilization of the fluorescent peptide sensor into PEG-PS resin beads and investigated the sensing ability for the metal ions in aqueous solutions. The functionalized resin was easily used for detecting heavy metal ions in aqueous solutions using spectrofluorometer with stirrer. The functionalized resin with the peptide sensor showed a selective response to Cu(II) and Zn(II) ions among 13 metal ions in aqueous solutions. The functionalized resin with the peptide sensor, showed a turn off response to Cu(II) and a turn on response to Zn(II) ions in aqueous solutions. The resin showed a very sensitive response to Cu(II) and Zn(II) ions; about 1 equiv of the metal ions was enough to saturate the fluorescent change of the resin. Furthermore, the recycle of the resin bead for detecting metal ions was demonstrated by simply washing of the resin with EDTA solution and fluorescent response for Cu(II) ions.

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KW - Nanoparticle

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JO - Sensors and Actuators B: Chemical

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ER -

Recyclable sensitive fluorimetric detection of specific metal ions using a functionalized PEG-PS resin with a fluorescent peptide sensor

Abstract

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Keywords

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