An adhesive SERS substrate based on a stretched silver nanowire-tape for the <i>in situ</i> multicomponent analysis of pesticide residues

Dai, Xing; Xue, Danni; Liu, Xiaohan; Gu, Chenjie; Jiang, Tao

doi:10.1039/d3ay00022b

Cited by 6 publications

(5 citation statements)

References 50 publications

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“…Before the adsorption operation, the surfaces of the supporting substrates are usually treated by physical or chemical methods, such as changing the surface charge [26] and the hydrophilicity [92] to adjust these interactions. After the modification, ready-to-use plasmonic materials can be transferred onto the substrate, for example, by dip-coating [51], to assemble SERS substrates. The key advantage of the physical adsorption method is that it is easy to operate and cost effective compared to the other fabrication methods.…”

Section: Physical Adsorption Methodsmentioning

confidence: 99%

“…For example, polymers [49], textiles [50], silicone rubber [19], electrical tapes [51], and hydrogels [52] have been widely used to make frames for stretchable SERS substrates. PDMS has the best transparency compared to other types of polymers.…”

Section: Stretchable Supporting Materialsmentioning

confidence: 99%

“…Polycaprolactone (PCL) membrane has ex-cellent flexibility, biodegradability, and biocompatibility, which makes it a suitable material for tape-based stretchable sensor development. The stretchable SERS substrate prepared by decorating Ag nanowire (NW) on the tape showed that an optimized SERS signal can be obtained under the condition of 15% tensile strain [51]. Textiles have good toughness, hydrophilicity, and the porous space in the fabric structure allows rapid enrichment of analyte molecules and stabilization of SERS signals in biofluid droplet samples.…”

Section: Stretchable Supporting Materialsmentioning

confidence: 99%

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Recent Development and Applications of Stretchable SERS Substrates

Peng,

Zhang,

Yan

et al. 2023

Nanomaterials

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Surface-enhanced Raman scattering (SERS) is a cutting-edge technique for highly sensitive analysis of chemicals and molecules. Traditional SERS-active nanostructures are constructed on rigid substrates where the nanogaps providing hot-spots of Raman signals are fixed, and sample loading is unsatisfactory due to the unconformable attachment of substrates on irregular sample surfaces. A flexible SERS substrate enables conformable sample loading and, thus, highly sensitive Raman detection but still with limited detection capabilities. Stretchable SERS substrates with flexible sample loading structures and controllable hot-spot size provide a new strategy for improving the sample loading efficiency and SERS detection sensitivity. This review summarizes and discusses recent development and applications of the newly conceptual stretchable SERS substrates. A roadmap of the development of SERS substrates is reviewed, and fabrication techniques of stretchable SERS substrates are summarized, followed by an exhibition of the applications of these stretchable SERS substrates. Finally, challenges and perspectives of the stretchable SERS substrates are presented. This review provides an overview of the development of SERS substrates and sheds light on the design, fabrication, and application of stretchable SERS systems.

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Section: Physical Adsorption Methodsmentioning

confidence: 99%

Section: Stretchable Supporting Materialsmentioning

confidence: 99%

Section: Stretchable Supporting Materialsmentioning

confidence: 99%

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Recent Development and Applications of Stretchable SERS Substrates

Peng,

Zhang,

Yan

et al. 2023

Nanomaterials

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“…Figure 6c shows the SERS spectra of various concentrations of TTD (10 −6 -10 −10 M), which exhibited two distinctive Raman characteristic peaks. The peak located at 1367 cm -1 is associated with C-N stretching and CH 3 symmetric deformation vibration modes [50]. The intensity of the SERS signal decreased with decreasing concentrations of TTD, and the characteristic Raman peak at 1367 cm −1 was still observed at 10 −10 M. For further quantitative analysis, Figure 6d shows the dependence of the SERS intensity at 1367 cm −1 on the TTD concentrations.…”

Section: The Detector Range and Practical Applications Of Res 2 /Aunp...mentioning

confidence: 96%

ReS2 Nanoflowers-Assisted Confined Growth of Gold Nanoparticles for Ultrasensitive and Reliable SERS Sensing

Liao

et al. 2023

Molecules

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ReS2, as a new member of transition metal dichalcogenides (TMDCs), has emerged as a promising substrate for semiconductor surface-enhanced Raman spectroscopy (SERS) due to its unique optoelectronic properties. Nevertheless, the sensitivity of the ReS2 SERS substrate poses a significant challenge to its widespread application in trace detection. In this work, we present a reliable approach for constructing a novel ReS2/AuNPs SERS composite substrate, enabling ultrasensitive detection of trace amounts of organic pesticides. We demonstrate that the porous structures of ReS2 nanoflowers can effectively confine the growth of AuNPs. By precisely controlling the size and distribution of AuNPs, numerous efficient and densely packed “hot spots” were created on the surface of ReS2 nanoflowers. As a result of the synergistic enhancement of the chemical and electromagnetic mechanisms, the ReS2/AuNPs SERS substrate demonstrates high sensitivity, good reproducibility, and superior stability in detecting typical organic dyes such as rhodamine 6G and crystalline violet. The ReS2/AuNPs SERS substrate shows an ultralow detection limit of 10−10 M and a linear detection of organic pesticide molecules within 10−6–10−10 M, which is significantly lower than the EU Environmental Protection Agency regulation standards. The strategy of constructing ReS2/AuNPs composites would contribute to the development of highly sensitive and reliable SERS sensing platforms for food safety monitoring.

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“…To these issues, Jiang et al 32 proposed a new “tape‐wrapped SERS (T‐SERS)” method, which detects trace amounts of tetramethyl thiuram disulfide and thiazole pesticides in fruits and vegetables by simple “paste, peel off, and paste again” procedures. Dai et al 34 used silver nanowires (Ag NWs) tape as a SERS substrate to detect trace amounts of tetramethyl thiuram disulfide and thiazole in tomatoes, plums, Chinese cabbage, and cucumbers. Wu et al 33 used bipyramids gold nanoparticles (BP Au NPs)‐modified commercial tape and simple “paste and peel‐off” procedures to effectively detect methyl parathion on cucumber, tomato, and apple surfaces, with detection limits reaching the ng/cm 2 level.…”

Section: Introductionmentioning

confidence: 99%

Rapid and sensitive detection of 2,4‐dichlorophenoxyacetic acid residual on fruit surface via SERS‐tape sampling

Chang,

Li,

Wang

et al. 2023

J Raman Spectroscopy

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The residual 2,4‐dichlorophenoxyacetic acid (2,4‐D) in fruits poses a serious threat to human health. The continuous deposition of 2,4‐D in the body may cause symptoms such as cancer or Alzheimer's disease, therefore, it is of great significance for the detection of 2,4‐D traces on fruits. In this paper, we proposed a simple “paste‐collect‐test” strategy based on surface‐enhanced Raman spectroscopy via tape sampling (SERS‐tape sampling). The flexibility and stickiness of commercial tapes were combined with the excellent activity of optimized silver nanoparticles (Ag NPs) for rapid trace detection of pesticides in cherry tomatoes. The first two steps of “paste” and “collect” were completed by the tape to simplify the sampling procedure of the analyte molecules, and the “test” step was accomplished by deposing Ag NPs on the surface of the tape after analyte collection. The whole process was completed in a few minutes. The results showed that the limit of detection (LOD) of 2,4‐D in cherry tomatoes was 3.63 × 10−10 M with the SERS‐tape sampling approach, which is much lower than the maximum residue limit specified by the European Union (EU). This simple and easy‐to‐operate method is highly sensitive and could be a promise of 2,4‐D for food safety.

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An adhesive SERS substrate based on a stretched silver nanowire-tape for the in situ multicomponent analysis of pesticide residues

Abstract: Two essential factors in powerful surface-enhanced Raman spectroscopy analysis of trace pesticide residues are viz., high sensitivity and efficient sampling.

Cited by 6 publications

References 50 publications

Recent Development and Applications of Stretchable SERS Substrates

Recent Development and Applications of Stretchable SERS Substrates

ReS2 Nanoflowers-Assisted Confined Growth of Gold Nanoparticles for Ultrasensitive and Reliable SERS Sensing

Rapid and sensitive detection of 2,4‐dichlorophenoxyacetic acid residual on fruit surface via SERS‐tape sampling

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