Pyranine functionalized Fe3O4 nanoparticles for the sensitive fluorescence detection of Cu2+ ions

Muhammad Tariq Shah; Esra Alveroglu; Aamna Balouch

doi:10.1016/j.jallcom.2018.06.334

Pyranine functionalized Fe₃O₄ nanoparticles for the sensitive fluorescence detection of Cu²⁺ ions

Muhammad Tariq Shah, Esra Alveroglu^*, Aamna Balouch

^*Corresponding author for this work

Department of Physics Engineering

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

23 Citations (Scopus)

Abstract

In this study, a sensitive fluorescence sensor was synthesized for the detection of Cu²⁺ ions based on the quenching of fluorophore. The sensor is composed of pyranine functionalized amino silane shell modified magnetite (Fe₃O₄) core nanostructures. The synthesized nanomaterials were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Powder Diffraction (XRD), Vibrating Sample Magnetometer (VSM) and Transmission Electron Microscopy (TEM). The fluorescent magnetic nanoparticles were analyzed by fluorescence spectroscopy. The characterization data showed that the magnetic core was highly superparamagnetic with an average particles diameter up to 10 nm. The fluorescence response of Fe₃O₄@-SiO₂-NH₂-Pyr nanosensor towards Cu²⁺ ions showed an enhanced and selective fluorescence quenching. Pyranine functionalized magnetic nanoparticles were found to be highly selective for Cu²⁺ ions without giving any response to other interfering cations and biomolecules. The nanosensor not only provided a sensitive (LOD = 6 nM), fast and selective detection of Cu²⁺ ions but a new fluorescent and biocompatible material with potential uses in biological and environmental fields.

Original language	English
Pages (from-to)	151-162
Number of pages	12
Journal	Journal of Alloys and Compounds
Volume	767
DOIs	https://doi.org/10.1016/j.jallcom.2018.06.334
Publication status	Published - 30 Oct 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

Funding

Muhammad Tariq Shah greatly acknowledges the scholarship support from the Scientific and Technological Research Council of Turkey (TUBITAK–2216) Research Fellowship Program for International Citizens. Muhammad Tariq Shah greatly acknowledges the scholarship support from the Scientific and Technological Research Council of Turkey ( TUBITAK–2216 ) Research Fellowship Program for International Citizens.

Funders	Funder number
TUBITAK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu	TUBITAK–2216

Keywords

Copper ion detection
Core-shell nanoparticle
Fluorescence
Magnetic nanoparticles
Pyranine

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10.1016/j.jallcom.2018.06.334

Cite this

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abstract = "In this study, a sensitive fluorescence sensor was synthesized for the detection of Cu2+ ions based on the quenching of fluorophore. The sensor is composed of pyranine functionalized amino silane shell modified magnetite (Fe3O4) core nanostructures. The synthesized nanomaterials were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Powder Diffraction (XRD), Vibrating Sample Magnetometer (VSM) and Transmission Electron Microscopy (TEM). The fluorescent magnetic nanoparticles were analyzed by fluorescence spectroscopy. The characterization data showed that the magnetic core was highly superparamagnetic with an average particles diameter up to 10 nm. The fluorescence response of Fe3O4@-SiO2-NH2-Pyr nanosensor towards Cu2+ ions showed an enhanced and selective fluorescence quenching. Pyranine functionalized magnetic nanoparticles were found to be highly selective for Cu2+ ions without giving any response to other interfering cations and biomolecules. The nanosensor not only provided a sensitive (LOD = 6 nM), fast and selective detection of Cu2+ ions but a new fluorescent and biocompatible material with potential uses in biological and environmental fields.",

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AU - Alveroglu, Esra

AU - Balouch, Aamna

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Y1 - 2018/10/30

N2 - In this study, a sensitive fluorescence sensor was synthesized for the detection of Cu2+ ions based on the quenching of fluorophore. The sensor is composed of pyranine functionalized amino silane shell modified magnetite (Fe3O4) core nanostructures. The synthesized nanomaterials were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Powder Diffraction (XRD), Vibrating Sample Magnetometer (VSM) and Transmission Electron Microscopy (TEM). The fluorescent magnetic nanoparticles were analyzed by fluorescence spectroscopy. The characterization data showed that the magnetic core was highly superparamagnetic with an average particles diameter up to 10 nm. The fluorescence response of Fe3O4@-SiO2-NH2-Pyr nanosensor towards Cu2+ ions showed an enhanced and selective fluorescence quenching. Pyranine functionalized magnetic nanoparticles were found to be highly selective for Cu2+ ions without giving any response to other interfering cations and biomolecules. The nanosensor not only provided a sensitive (LOD = 6 nM), fast and selective detection of Cu2+ ions but a new fluorescent and biocompatible material with potential uses in biological and environmental fields.

AB - In this study, a sensitive fluorescence sensor was synthesized for the detection of Cu2+ ions based on the quenching of fluorophore. The sensor is composed of pyranine functionalized amino silane shell modified magnetite (Fe3O4) core nanostructures. The synthesized nanomaterials were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Powder Diffraction (XRD), Vibrating Sample Magnetometer (VSM) and Transmission Electron Microscopy (TEM). The fluorescent magnetic nanoparticles were analyzed by fluorescence spectroscopy. The characterization data showed that the magnetic core was highly superparamagnetic with an average particles diameter up to 10 nm. The fluorescence response of Fe3O4@-SiO2-NH2-Pyr nanosensor towards Cu2+ ions showed an enhanced and selective fluorescence quenching. Pyranine functionalized magnetic nanoparticles were found to be highly selective for Cu2+ ions without giving any response to other interfering cations and biomolecules. The nanosensor not only provided a sensitive (LOD = 6 nM), fast and selective detection of Cu2+ ions but a new fluorescent and biocompatible material with potential uses in biological and environmental fields.

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