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|a 10.1021/acs.langmuir.4c01651
|2 doi
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|a eng
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|a Do Quynh Nhu, Nguyen
|e verfasserin
|4 aut
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|a Facile Fabrication of SERS Substrates by the Electrodeposition Method to Detect Pesticides with High Enhancement Effect and Long-Term Stability
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Revised 25.06.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In this study, surface-enhanced Raman scattering substrates were investigated by the electrodeposition method to detect low concentrations of pesticides via the electrodeposition method with different agents from silver and gold precursors on APTES-modified ITO glass. A dual-potential method supplied three electrodes and was performed with a nucleation potential of 0.7 V for 2 s and a growth potential of -0.2 V for 500 s. The Ag film produced by the electrodeposition approach has great surface uniformity and good SERS signal amplification for the thiram insecticide at low concentrations. Interestingly, the ITO/APTES/Ag substrate extensively increased the sensitivity than the other investigated ones, thanks to the adequate assistance of amino groups of APTES in the denser and hierarchical deposition of Ag NPs. These observations were additionally elucidated via finite-difference time-domain (FDTD) calculation. For thiram, the detection was set at 10-8 M with an enhancement factor of up to 3.6 × 107 times. Comparing the SERS spectra of thiram at concentrations of 10-3, 10-4, and 10-5 M with a relative standard deviation (RSD) of less than 7.0% demonstrates excellent reproducibility of the ITO/APTES/Ag substrate. In addition, the special selectivity of the ITO/APTES/Ag substrate for thiram demonstrates that these nanostructures can identify pesticides with extreme sensitivity
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|a Journal Article
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|a Nguyen, Thuy-An
|e verfasserin
|4 aut
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|a Tran Truc Phuong, Nguyen
|e verfasserin
|4 aut
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| 700 |
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|a Tho, Le Hong
|e verfasserin
|4 aut
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|a Huong, Vu Thi
|e verfasserin
|4 aut
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|a Pham, Anh Tuan Thanh
|e verfasserin
|4 aut
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| 700 |
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|a Tran, Ngoc Quang
|e verfasserin
|4 aut
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|a Tran, Nhu Hoa Thi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 40(2024), 25 vom: 25. Juni, Seite 13292-13302
|w (DE-627)NLM098181009
|x 1520-5827
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| 773 |
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|g volume:40
|g year:2024
|g number:25
|g day:25
|g month:06
|g pages:13292-13302
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|u http://dx.doi.org/10.1021/acs.langmuir.4c01651
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