Durable and flexible Ag-nanowire-embedded PDMS films for the recyclable swabbing detection of malachite green residue in fruits and fingerprints

Luo, Juanjuan; Wang, Zekai; Li, Yun; Wang, Changding; Sun, Jingbo; Ye, Weichun; Wang, Xiaolong; Shao, Bing

doi:10.1016/j.snb.2021.130602

Cited by 34 publications

(30 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Commercial flexible materials such as tape, paper, swab, sponge and other sheet materials have been widely used for flexible SERS substrates preparation. [ 50–52 ] The tape is sticky and can be directly extracted and detected by the ‘stick‐peel’ method on the actual sample surfaces.…”

Section: Sers Substratesmentioning

confidence: 99%

Applications of surface‐enhanced Raman spectroscopy based on portable Raman spectrometers: A review of recent developments

Wang

Song

2022

Luminescence

View full text Add to dashboard Cite

Recently, the surface‐enhanced Raman spectroscopy (SERS) technique emerges as a potential promising analytical tool for rapid, sensitive, and selective detection which can provide unique information about the substances in the presence of plasmonic nanostructures via finger‐printing SERS spectra. The progress in nanostructure SERS substrates and portable Raman spectrometers will promote this novel detection technique to play an important role in the future rapid on‐site assay. In this review, we summarized the latest research on SERS detection technique combined based on nanostructure SERS‐active substrates with portable Raman spectrometers and their potential on‐site detection applications in environment pollutants, agricultural pollutants, biomedical analysis, and other newly emerging fields (focusing particularly on the last 5 years of research). The future perspective of SERS for on‐site analysis is also discussed.

show abstract

Section: Sers Substratesmentioning

confidence: 99%

Applications of surface‐enhanced Raman spectroscopy based on portable Raman spectrometers: A review of recent developments

Wang

Song

2022

Luminescence

View full text Add to dashboard Cite

show abstract

“…The Ti 3 C 2 T x /DNA/Ag membrane substrate integrated a series of features of multitarget separation, enrichment, and in-situ detection. Luo et al [ 124 ] developed flexible Ag nanowires embedded PDMS (Ag NWs@PDMS) membrane substrate for detection of MG residue in food samples. The as-fabricated Ag NWs@PDMS film shows great durability and recyclability in several situations including 20 times stretchability, HNO 3 corrosion, ultrasonication and broad temperature in range of −20–80 °C.…”

Section: The Applications Of Solid Sers Substratesmentioning

confidence: 99%

Recent Progress on Solid Substrates for Surface-Enhanced Raman Spectroscopy Analysis

2022

Biosensors

View full text Add to dashboard Cite

Surface-enhanced Raman spectroscopy (SERS) is a powerful vibrational spectroscopy technique with distinguished features of non-destructivity, ultra-sensitivity, rapidity, and fingerprint characteristics for analysis and sensors. The SERS signals are mainly dependent on the engineering of high-quality substrates. Recently, solid SERS substrates with diverse forms have been attracting increasing attention due to their promising features, including dense hot spot, high stability, controllable morphology, and convenient portability. Here, we comprehensively review the recent advances made in the field of solid SERS substrates, including their common fabrication methods, basic categories, main features, and representative applications, respectively. Firstly, the main categories of solid SERS substrates, mainly including membrane substrate, self-assembled substrate, chip substrate, magnetic solid substrate, and other solid substrate, are introduced in detail, as well as corresponding construction strategies and main features. Secondly, the typical applications of solid SERS substrates in bio-analysis, food safety analysis, environment analysis, and other analyses are briefly reviewed. Finally, the challenges and perspectives of solid SERS substrates, including analytical performance improvement and largescale production level enhancement, are proposed.

show abstract

“…Recently, a new trend has been developed by combining a flexible substrate with SERS-active nanoparticles [ 34 , 35 , 36 ]. Simple sampling processes can be carried out by swabbing the target surface with the flexible substrate, while qualitative and even quantitative detection can be realized by SERS [ 37 ]. For example, a flexible SERS substrate was introduced by applying Au and Ag nanoparticles to an aluminum foil-based ZnO nanosheet.…”

Section: Introductionmentioning

confidence: 99%

Rapid Detection of Malathion, Phoxim and Thiram on Orange Surfaces Using Ag Nanoparticle Modified PDMS as Surface-Enhanced Raman Spectroscopy Substrate

Zhai

Cao

Xiao³

et al. 2022

Foods

View full text Add to dashboard Cite

Malathion, phoxim, and thiram are organophosphates and organosulfur pesticides widely used in agricultural products. The residues of these pesticides present a direct threat to human health. Rapid and on-site detection is critical for minimizing such risks. In this work, a simple approach was introduced using a flexible surface-enhanced Raman spectroscopy (SERS) substrate. The prepared Ag nanoparticles-polydimethylsiloxane (AgNPs-PDMS) substrate showed high SERS activity, good precision (relative standard deviation = 5.33%), and stability (30 days) after optimization. For target pesticides, the linear relationship between characteristic SERS bands and concentrations were achieved in the range of 10~1000, 100~5000, and 50~5000 μg L−1 with LODs down to 3.62, 41.46, and 15.69 μg L−1 for thiram, malathion, and phoxim, respectively. Moreover, SERS spectra of mixed samples indicated that three pesticides can be identified simultaneously, with recovery rates between 96.5 ± 3.3% and 118.9 ± 2.4%, thus providing an ideal platform for detecting more than one target. Pesticide residues on orange surfaces can be simply determined through swabbing with the flexible substrate before acquiring the SERS signal. This study demonstrated that the prepared substrate can be used for the rapid detection of pesticides on real samples. Overall, this method greatly simplified the pre-treatment procedure, thus serving as a promising analytical tool for rapid and nondestructive screening of malathion, phoxim, and thiram on various agricultural products.

show abstract

Durable and flexible Ag-nanowire-embedded PDMS films for the recyclable swabbing detection of malachite green residue in fruits and fingerprints

Cited by 34 publications

References 41 publications

Applications of surface‐enhanced Raman spectroscopy based on portable Raman spectrometers: A review of recent developments

Applications of surface‐enhanced Raman spectroscopy based on portable Raman spectrometers: A review of recent developments

Recent Progress on Solid Substrates for Surface-Enhanced Raman Spectroscopy Analysis

Rapid Detection of Malathion, Phoxim and Thiram on Orange Surfaces Using Ag Nanoparticle Modified PDMS as Surface-Enhanced Raman Spectroscopy Substrate

Contact Info

Product

Resources

About