SERS detection of thiram using polyacrylamide hydrogel-enclosed gold nanoparticle aggregates

Wang, Kaiqiang; Yue, Zilin; Fang, Xiu Susie; Lin, Hong; Wang, Lei; Cao, Limin; Sui, Jianxin; Lee, Ju

doi:10.1016/j.scitotenv.2022.159108

Cited by 21 publications

(11 citation statements)

References 39 publications

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“…The Raman characteristic peaks of thiram were mainly at 437 cm −1 (deformation vibration of CH 3 NC and stretching vibration of CS), 560 cm −1 (S–S stretching vibration), 973 cm −1 (stretching vibration of CH 3 N and CS), 1141 cm −1 (rocking vibration of CH 3 and stretching vibration of C–N), 1382 (stretching vibration of C–N and the symmetrical deformation vibration of CH 3 ), and 1446 cm −1 (antisymmetric deformation vibration of CH 3 ). 40,41 Among them, the signal at 1382 cm −1 was the strongest, and was more suitable for quantitative research. In practical Raman detection, there was a slight shift in the Raman characteristic peak of thiram solution, which was within the allowable range of experimental error.…”

Section: Resultsmentioning

confidence: 99%

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Surface-enhanced Raman scattering of a gold core–silver shell-sponge substrate for detection of thiram and diquat

Sun¹,

Li²,

Wang³

et al. 2023

Anal. Methods

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Section: Resultsmentioning

confidence: 99%

“…6b. 40,41 Among them, the signal at 1382 cm −1 was the strongest, and was more suitable for quantitative research. In practical Raman detection, there Paper Analytical Methods was a slight shi in the Raman characteristic peak of thiram solution, which was within the allowable range of experimental error.…”

Section: Raman Performance Of Thiram and Diquatmentioning

confidence: 99%

Surface-enhanced Raman scattering of a gold core–silver shell-sponge substrate for detection of thiram and diquat

Sun¹,

Li²,

Wang³

et al. 2023

Anal. Methods

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“…However, their sensitivity can be reduced by the presence of interfering artifacts in food matrices through nonspecific binding on the SERS substrates. To enhance the sensitivity of SERS analysis in food matrices, the capturing agents (e.g., functional polymers, antibodies, aptamers) that are specific to the target can be immobilized onto the SERS active nanomaterials, which were precoated with an appropriate blocking agent that prevents the nonspecific binding of interfering artifacts in a complex food matrix …”

Section: Detection Methodsmentioning

confidence: 99%

Recent Advances in Biosensor Development for the Detection of Viral Particles in Foods: A Comprehensive Review

Zhu,

Kim,

Kim

et al. 2023

J. Agric. Food Chem.

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Viral foodborne diseases cause serious harm to human health and the economy. Rapid, accurate, and convenient approaches for detecting foodborne viruses are crucial for preventing diseases. Biosensors integrating electrochemical and optical properties of nanomaterials have emerged as effective tools for the detection of viruses in foods. However, they still face several challenges, including substantial sample preparation and relatively poor sensitivity due to complex food matrices, which limit their field applications. Hence, the purpose of this review is to provide an overview of recent advances in biosensing techniques, including electrochemical, SERS-based, and colorimetric biosensors, for detecting viral particles in food samples, with emerging techniques for extraction/concentration of virus particles from food samples. Moreover, the principle, design, and advantages/disadvantages of each biosensing method are comprehensively described. This review covers the recent development of rapid and sensitive biosensors that can be used as new standards for monitoring food safety and food quality in the food industry.

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“…The detection of thiram residues in fruit and vegetable samples using surface‐enhanced Raman spectroscopy (SERS) has been extensively studied 12–17 . These studies have been focused on the selection and manufacture of the most suitable substrate in the form of a solid surface or colloid.…”

Section: Introductionmentioning

confidence: 99%

“…The detection of thiram residues in fruit and vegetable samples using surface-enhanced Raman spectroscopy (SERS) has been extensively studied. [12][13][14][15][16][17] These studies have been focused on the selection and manufacture of the most suitable substrate in the form of a solid surface or colloid. However, there have been fewer studies conducted on the SERS or normal Raman spectrum measurement of thiram itself and the assignment of its spectral bands.…”

mentioning

confidence: 99%

Insights into thiram fungicide: A comparative study of solution and solid phases through Raman, DCDR, and SERS measurements and DFT simulations

Valášková

Kuižová

Kočišová

et al. 2023

J Raman Spectroscopy

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Thiram, a widely known fungicide, has evinced a negative impact on the environment and human health that led to the banning of its use in plant protection products on all commodities in the European Union. Therefore, there is a need for monitoring possible illicit use, which requires sensitive and accurate detection methods. In this study, the behavior of thiram in different phases was investigated in order to better understand its properties. Raman spectra were obtained from thiram in the solid state as a crystalline powder, dissolved in different solvents, and from dried deposits using the drop coating deposition Raman (DCDR) method. The analyses of acquired Raman spectra revealed evidence of hydrogen bonding between thiram and chloroform in the solution phase. The reliability and sensitivity of DCDR measurements were also highlighted, with high‐quality spectra obtained from a dried pattern from droplet at a 40 μM concentration. Moreover, the study identified the most abundant conformer of intact (undegraded) thiram molecule and enabled reliable band assignment and vibrational analysis based on DFT simulations, providing a better understanding of the compound's properties. The results also suggested that thiram can be coordinated to silver in nanostructured SERS active substrates not only in the degraded form but also in the undegraded form. Overall, this study provides valuable insights into thiram's behavior and can be helpful in the further development of efficient and effective methods for its detection and analysis.

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SERS detection of thiram using polyacrylamide hydrogel-enclosed gold nanoparticle aggregates

Cited by 21 publications

References 39 publications

Surface-enhanced Raman scattering of a gold core–silver shell-sponge substrate for detection of thiram and diquat

Surface-enhanced Raman scattering of a gold core–silver shell-sponge substrate for detection of thiram and diquat

Recent Advances in Biosensor Development for the Detection of Viral Particles in Foods: A Comprehensive Review

Insights into thiram fungicide: A comparative study of solution and solid phases through Raman, DCDR, and SERS measurements and DFT simulations

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