Surface-Enhanced Raman Scattering Detection of Pesticide Residues Using Transparent Adhesive Tapes and Coated Silver Nanorods

Abstract

The efficient extraction of analytes from complex and severe environments is significant for promoting the surface-enhanced Raman scattering (SERS) technique to actual applications. In this paper, a proof-of-concept strategy is proposed for the rapid detection of pesticide residues by utilizing the flexible, transparent, and adhesive properties of commercial tapes and SERS performance of AlO-coated silver nanorod (AgNR@AlO) arrays. The function of tapes is to rapidly transfer the analytes from the actual surface to the SERS substrate. The novel "tape-wrapped SERS (T-SERS)" approach was constructed by a simple "paste, peel off, and paste again" procedure. The easily obtained but clearly distinguished SERS signals allow us to quickly determine the constituents of complex surfaces, such as tetramethylthiuram disulfide and thiabendazole pesticides from fruits and vegetables, which may be practically applied to food safety, environmental monitoring, and industrial production process controlling.

3D Ultrasensitive Polymers-Plasmonic Hybrid Flexible Platform for In-Situ Detection

“…Significant Raman enhancement tends to occur at nanogaps between neighboring metal nanostructures with high local-field intensities (so-called "hot spots") [8][9][10]. However, in many cases, SERS substrates based on silicon wafers or glass slides are rigid, brittle, and hence unsuitable for directly analyzing target molecules in a solution or gas [11,12]. Compared to traditional rigid substrates, flexible substrates can wrap around complex surfaces and be tailored to the desired size and shape [13].…”

“…Compared to traditional rigid substrates, flexible substrates can wrap around complex surfaces and be tailored to the desired size and shape [13]. In addition to achieving a highly active SERS substrate, the effective and rapid collection of probe molecules to the substrate presents a significant challenge [12].…”

Surface‐enhanced Raman scattering studies of gold‐coated ripple‐like nanostructures on iron substrate achieved by femtosecond laser irradiation in water

“…Surface‐enhanced Raman scattering (SERS) has emerged as the most promising spectroscopic analytical tool in the research community because of its molecular detection capability with high spectroscopic precision and extraordinary sensitivity . SERS has displayed plenty of applications in a wide range of areas including explosive detection, food analysis, biosensing, and so on. In SERS, several orders of increment in Raman signals of adsorbed molecules can be observed due to the localized surface plasmons of roughened metal nanostructures (NSs)/nanoparticles (NPs), regarded as electromagnetic enhancement .…”

Fluorescence enhancement of fungicide thiabendazole by van der Waals interaction with transition metal dichalcogenide nanosheets for highly specific sensors

“…TBZ is a general biocide with fungicide and nematicide activities that, as the rest of the benzimidazole fungicides, presents fluorescence properties. [19][20][21] In humans and livestock, TBZ has shown activity against the parasitic worms helminths, although a high dosage of TBZ in rats can be carcinogenic and the chronic exposure to benzimidazole residues has been linked with embryotoxicity, teratogenicity and anemia. 19,20 In agriculture, benzimidazoles are used for pre-and post-harvest treatments to avoid various fungi and can be applied directly to the soil or sprayed over the fields so these compounds can migrate to groundwater systems.…”

“…Because they can be used for many applications, their use is widespread and they can be found in wastewaters from the agricultural industry and urban areas. 19,21,22 Many different methods for the detection of TBZ have been proposed, including surface-enhanced Raman spectroscopy (SERS) (allowing the analysis in solid samples), 21 electrochemical 23 or different luminescence techniques. 22 Nevertheless, most of the methods proposed require the use of sophisticated equipment such as high performance liquid chromatography.…”