Liquid Surface-Enhanced Raman Spectroscopy (SERS) Sensor-Based Au-Ag Colloidal Nanoparticles for Easy and Rapid Detection of Deltamethrin Pesticide in Brewed Tea
Deltamethrin pesticides can cause inflammation, nephrotoxicity and hepatotoxicity as well as affect the activity of antioxidant enzymes in tissues. As a result of this concern, there is a rising focus on the development of fast and reliable pesticide residue testing to minimise potential risks to hu...
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MDPI AG
2021-12-01
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| Online Access: | https://www.mdpi.com/2073-4352/12/1/24 |
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| author | Affi Nur Hidayah Djoko Triyono Yuliati Herbani Rosari Saleh |
| author_facet | Affi Nur Hidayah Djoko Triyono Yuliati Herbani Rosari Saleh |
| author_sort | Affi Nur Hidayah |
| collection | DOAJ |
| description | Deltamethrin pesticides can cause inflammation, nephrotoxicity and hepatotoxicity as well as affect the activity of antioxidant enzymes in tissues. As a result of this concern, there is a rising focus on the development of fast and reliable pesticide residue testing to minimise potential risks to humans. The goal of this study is to use Au-Ag colloid nanoparticles as liquid surface-enhanced Raman spectroscopy (SERS) to improve the Raman signal in the detection of deltamethrin pesticide in a brewed tea. The liquid SERS system is fascinating to study due to its ease of use and its unlikeliness to cause several phenomena, such as photo-bleaching, combustion, sublimation and even photo-catalysis, which can interfere with the Raman signal, as shown in the SERS substrate. Our liquid SERS system is simpler than previous liquid SERS systems that have been reported. We performed the detection of pesticide analyte directly on brewed tea, without diluting it with ethanol or centrifuging it. Femtosecond laser-induced photo-reduction was employed to synthesise the liquid SERS of Au, Au-Ag, and Ag colloidal nanoparticles. The SERS was utilised to detect deltamethrin pesticide in brewed tea. The result showed that liquid SERS-based Ag NPs significantly enhance the Raman signal of pesticides compared with liquid SERS-based Au NPs and Au-Ag Nanoalloys. The maximum residue limits (MRLs) in tea in Indonesia are set at 10 ppm. Therefore, this method was also utilised to detect and improve, to 0.01 ppm, the deltamethrin pesticide Limit of Detection (LOD). |
| first_indexed | 2024-03-10T01:41:02Z |
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| id | doaj.art-1b39aa0a7e5245fcb6c0a573009b7c95 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T01:41:02Z |
| publishDate | 2021-12-01 |
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| record_format | Article |
| series | Crystals |
| spelling | doaj.art-1b39aa0a7e5245fcb6c0a573009b7c952023-11-23T13:24:00ZengMDPI AGCrystals2073-43522021-12-011212410.3390/cryst12010024Liquid Surface-Enhanced Raman Spectroscopy (SERS) Sensor-Based Au-Ag Colloidal Nanoparticles for Easy and Rapid Detection of Deltamethrin Pesticide in Brewed TeaAffi Nur Hidayah0Djoko Triyono1Yuliati Herbani2Rosari Saleh3Department of Physics, FMIPA, Universitas Indonesia, Kampus UI Depok, Jakarta 16424, IndonesiaDepartment of Physics, FMIPA, Universitas Indonesia, Kampus UI Depok, Jakarta 16424, IndonesiaResearch Center for Physics, National Research and Innovation Agency, Kawasan PUSPIPTEK Building 442, Tangerang Selatan 15314, IndonesiaDepartment of Physics, FMIPA, Universitas Indonesia, Kampus UI Depok, Jakarta 16424, IndonesiaDeltamethrin pesticides can cause inflammation, nephrotoxicity and hepatotoxicity as well as affect the activity of antioxidant enzymes in tissues. As a result of this concern, there is a rising focus on the development of fast and reliable pesticide residue testing to minimise potential risks to humans. The goal of this study is to use Au-Ag colloid nanoparticles as liquid surface-enhanced Raman spectroscopy (SERS) to improve the Raman signal in the detection of deltamethrin pesticide in a brewed tea. The liquid SERS system is fascinating to study due to its ease of use and its unlikeliness to cause several phenomena, such as photo-bleaching, combustion, sublimation and even photo-catalysis, which can interfere with the Raman signal, as shown in the SERS substrate. Our liquid SERS system is simpler than previous liquid SERS systems that have been reported. We performed the detection of pesticide analyte directly on brewed tea, without diluting it with ethanol or centrifuging it. Femtosecond laser-induced photo-reduction was employed to synthesise the liquid SERS of Au, Au-Ag, and Ag colloidal nanoparticles. The SERS was utilised to detect deltamethrin pesticide in brewed tea. The result showed that liquid SERS-based Ag NPs significantly enhance the Raman signal of pesticides compared with liquid SERS-based Au NPs and Au-Ag Nanoalloys. The maximum residue limits (MRLs) in tea in Indonesia are set at 10 ppm. Therefore, this method was also utilised to detect and improve, to 0.01 ppm, the deltamethrin pesticide Limit of Detection (LOD).https://www.mdpi.com/2073-4352/12/1/24deltamethrin pesticidesliquid SERSAu-Ag nanoparticles |
| spellingShingle | Affi Nur Hidayah Djoko Triyono Yuliati Herbani Rosari Saleh Liquid Surface-Enhanced Raman Spectroscopy (SERS) Sensor-Based Au-Ag Colloidal Nanoparticles for Easy and Rapid Detection of Deltamethrin Pesticide in Brewed Tea Crystals deltamethrin pesticides liquid SERS Au-Ag nanoparticles |
| title | Liquid Surface-Enhanced Raman Spectroscopy (SERS) Sensor-Based Au-Ag Colloidal Nanoparticles for Easy and Rapid Detection of Deltamethrin Pesticide in Brewed Tea |
| title_full | Liquid Surface-Enhanced Raman Spectroscopy (SERS) Sensor-Based Au-Ag Colloidal Nanoparticles for Easy and Rapid Detection of Deltamethrin Pesticide in Brewed Tea |
| title_fullStr | Liquid Surface-Enhanced Raman Spectroscopy (SERS) Sensor-Based Au-Ag Colloidal Nanoparticles for Easy and Rapid Detection of Deltamethrin Pesticide in Brewed Tea |
| title_full_unstemmed | Liquid Surface-Enhanced Raman Spectroscopy (SERS) Sensor-Based Au-Ag Colloidal Nanoparticles for Easy and Rapid Detection of Deltamethrin Pesticide in Brewed Tea |
| title_short | Liquid Surface-Enhanced Raman Spectroscopy (SERS) Sensor-Based Au-Ag Colloidal Nanoparticles for Easy and Rapid Detection of Deltamethrin Pesticide in Brewed Tea |
| title_sort | liquid surface enhanced raman spectroscopy sers sensor based au ag colloidal nanoparticles for easy and rapid detection of deltamethrin pesticide in brewed tea |
| topic | deltamethrin pesticides liquid SERS Au-Ag nanoparticles |
| url | https://www.mdpi.com/2073-4352/12/1/24 |
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