Gold nanoparticle-coated ZrO2-nanofiber surface as a SERS-active substrate for trace detection of pesticide residue

Han Lee, Jiunn-Der Liao, Kundan Sivashanmugan, Bernard Haochih Liu, Wei En Fu, Chih Chien Chen, Guo Dung Chen, Yung Der Juang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Trace detection of common pesticide residue is necessary to assure safety of fruit and vegetables, given that the potential health risk to consumers is attributed to the contamination of the sources. A simple, rapid and effective means of finding the residue is however required for household purposes. In recent years, the technique in association with surface-enhanced Raman scattering (SERS) has been well developed in particular for trace detection of target molecules. Herein, gold nanoparticles (Au NPs) were integrated with sol-gel spin-coated Zirconia nanofibers (ZrO2 NFs) as a chemically stable substrate and used for SERS application. The morphologies of Au NPs/ZrO2 NFs were adjusted by the precursor concentrations (_X, X = 0.05–0.5 M) and the effect of SERS on Au NPs/ZrO2 NFs_X was evaluated by different Raman laser wavelengths using rhodamine 6G as the probe molecule at low concentrations. The target pesticides, phosmet (P1), carbaryl (C1), permethrin (P2) and cypermethrin (C2) were thereafter tested and analyzed. Au NPs/ZrO2 NFs_0.3 exhibited an enhancement factor of 2.1 × 107, which could detect P1, C1, P2 and C2 at the concentrations down to 10−8, 10−7, 10−7 and 10−6 M, respectively. High selectivity to the organophosphates was also found. As the pesticides were dip-coated on an apple and then measured on the diluted juice containing sliced apple peels, the characteristic peaks of each pesticide could be clearly identified. It is thus promising to use NPs/ZrO2 NFs_0.3 as a novel SERS-active substrate for trace detection of pesticide residue upon, for example, fruits or vegetables.

Original languageEnglish
Article number402
JournalNanomaterials
Volume8
Issue number6
DOIs
Publication statusPublished - 2018 Jun 3

Fingerprint

Pesticide Residues
Nanofibers
Pesticides
Gold
Raman scattering
Nanoparticles
Vegetables
Substrates
Fruits
Phosmet
Carbaryl
Permethrin
Molecules
Organophosphates
Health risks
Sol-gels
Contamination
Zirconia
Wavelength
Lasers

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)

Cite this

Lee, Han ; Liao, Jiunn-Der ; Sivashanmugan, Kundan ; Liu, Bernard Haochih ; Fu, Wei En ; Chen, Chih Chien ; Chen, Guo Dung ; Juang, Yung Der. / Gold nanoparticle-coated ZrO2-nanofiber surface as a SERS-active substrate for trace detection of pesticide residue. In: Nanomaterials. 2018 ; Vol. 8, No. 6.
@article{9f4d5d112873424aa5614d6bdb12fad6,
title = "Gold nanoparticle-coated ZrO2-nanofiber surface as a SERS-active substrate for trace detection of pesticide residue",
abstract = "Trace detection of common pesticide residue is necessary to assure safety of fruit and vegetables, given that the potential health risk to consumers is attributed to the contamination of the sources. A simple, rapid and effective means of finding the residue is however required for household purposes. In recent years, the technique in association with surface-enhanced Raman scattering (SERS) has been well developed in particular for trace detection of target molecules. Herein, gold nanoparticles (Au NPs) were integrated with sol-gel spin-coated Zirconia nanofibers (ZrO2 NFs) as a chemically stable substrate and used for SERS application. The morphologies of Au NPs/ZrO2 NFs were adjusted by the precursor concentrations (_X, X = 0.05–0.5 M) and the effect of SERS on Au NPs/ZrO2 NFs_X was evaluated by different Raman laser wavelengths using rhodamine 6G as the probe molecule at low concentrations. The target pesticides, phosmet (P1), carbaryl (C1), permethrin (P2) and cypermethrin (C2) were thereafter tested and analyzed. Au NPs/ZrO2 NFs_0.3 exhibited an enhancement factor of 2.1 × 107, which could detect P1, C1, P2 and C2 at the concentrations down to 10−8, 10−7, 10−7 and 10−6 M, respectively. High selectivity to the organophosphates was also found. As the pesticides were dip-coated on an apple and then measured on the diluted juice containing sliced apple peels, the characteristic peaks of each pesticide could be clearly identified. It is thus promising to use NPs/ZrO2 NFs_0.3 as a novel SERS-active substrate for trace detection of pesticide residue upon, for example, fruits or vegetables.",
author = "Han Lee and Jiunn-Der Liao and Kundan Sivashanmugan and Liu, {Bernard Haochih} and Fu, {Wei En} and Chen, {Chih Chien} and Chen, {Guo Dung} and Juang, {Yung Der}",
year = "2018",
month = "6",
day = "3",
doi = "10.3390/nano8060402",
language = "English",
volume = "8",
journal = "Nanomaterials",
issn = "2079-4991",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "6",

}

Gold nanoparticle-coated ZrO2-nanofiber surface as a SERS-active substrate for trace detection of pesticide residue. / Lee, Han; Liao, Jiunn-Der; Sivashanmugan, Kundan; Liu, Bernard Haochih; Fu, Wei En; Chen, Chih Chien; Chen, Guo Dung; Juang, Yung Der.

In: Nanomaterials, Vol. 8, No. 6, 402, 03.06.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Gold nanoparticle-coated ZrO2-nanofiber surface as a SERS-active substrate for trace detection of pesticide residue

AU - Lee, Han

AU - Liao, Jiunn-Der

AU - Sivashanmugan, Kundan

AU - Liu, Bernard Haochih

AU - Fu, Wei En

AU - Chen, Chih Chien

AU - Chen, Guo Dung

AU - Juang, Yung Der

PY - 2018/6/3

Y1 - 2018/6/3

N2 - Trace detection of common pesticide residue is necessary to assure safety of fruit and vegetables, given that the potential health risk to consumers is attributed to the contamination of the sources. A simple, rapid and effective means of finding the residue is however required for household purposes. In recent years, the technique in association with surface-enhanced Raman scattering (SERS) has been well developed in particular for trace detection of target molecules. Herein, gold nanoparticles (Au NPs) were integrated with sol-gel spin-coated Zirconia nanofibers (ZrO2 NFs) as a chemically stable substrate and used for SERS application. The morphologies of Au NPs/ZrO2 NFs were adjusted by the precursor concentrations (_X, X = 0.05–0.5 M) and the effect of SERS on Au NPs/ZrO2 NFs_X was evaluated by different Raman laser wavelengths using rhodamine 6G as the probe molecule at low concentrations. The target pesticides, phosmet (P1), carbaryl (C1), permethrin (P2) and cypermethrin (C2) were thereafter tested and analyzed. Au NPs/ZrO2 NFs_0.3 exhibited an enhancement factor of 2.1 × 107, which could detect P1, C1, P2 and C2 at the concentrations down to 10−8, 10−7, 10−7 and 10−6 M, respectively. High selectivity to the organophosphates was also found. As the pesticides were dip-coated on an apple and then measured on the diluted juice containing sliced apple peels, the characteristic peaks of each pesticide could be clearly identified. It is thus promising to use NPs/ZrO2 NFs_0.3 as a novel SERS-active substrate for trace detection of pesticide residue upon, for example, fruits or vegetables.

AB - Trace detection of common pesticide residue is necessary to assure safety of fruit and vegetables, given that the potential health risk to consumers is attributed to the contamination of the sources. A simple, rapid and effective means of finding the residue is however required for household purposes. In recent years, the technique in association with surface-enhanced Raman scattering (SERS) has been well developed in particular for trace detection of target molecules. Herein, gold nanoparticles (Au NPs) were integrated with sol-gel spin-coated Zirconia nanofibers (ZrO2 NFs) as a chemically stable substrate and used for SERS application. The morphologies of Au NPs/ZrO2 NFs were adjusted by the precursor concentrations (_X, X = 0.05–0.5 M) and the effect of SERS on Au NPs/ZrO2 NFs_X was evaluated by different Raman laser wavelengths using rhodamine 6G as the probe molecule at low concentrations. The target pesticides, phosmet (P1), carbaryl (C1), permethrin (P2) and cypermethrin (C2) were thereafter tested and analyzed. Au NPs/ZrO2 NFs_0.3 exhibited an enhancement factor of 2.1 × 107, which could detect P1, C1, P2 and C2 at the concentrations down to 10−8, 10−7, 10−7 and 10−6 M, respectively. High selectivity to the organophosphates was also found. As the pesticides were dip-coated on an apple and then measured on the diluted juice containing sliced apple peels, the characteristic peaks of each pesticide could be clearly identified. It is thus promising to use NPs/ZrO2 NFs_0.3 as a novel SERS-active substrate for trace detection of pesticide residue upon, for example, fruits or vegetables.

UR - http://www.scopus.com/inward/record.url?scp=85048256843&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048256843&partnerID=8YFLogxK

U2 - 10.3390/nano8060402

DO - 10.3390/nano8060402

M3 - Article

VL - 8

JO - Nanomaterials

JF - Nanomaterials

SN - 2079-4991

IS - 6

M1 - 402

ER -