MoS2 Nanoplatelets on Hybrid Core-Shell (HyCoS) AuPd NPs for Hybrid SERS Platform for Detection of R6G

Lin, Shusen; Mandavkar, Rutuja; Burse, Shalmali; Habib, Md Ahasan; Khalid, Tasmia; Joni, Mehedi Hasan; Chung, Young-uk; Kunwar, Sundar; Lee, Jihoon

doi:10.3390/nano13040769

Cited by 4 publications

(3 citation statements)

References 60 publications

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“…It showed significant Raman enhancement for a concentration of 10 pg/mL R6G solution. According to the relevant formula for enhancement factor (EF) , normalE normalF = I normalS normalE normalR normalS / N normals normalu normalr normalf I normalN normalR normalS / N normalv normalo normall …”

Section: Resultsmentioning

confidence: 99%

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Flexible Sponge Surface Enhances Raman Scattering (SERS) Substrate with Patterned Superwettability for Ultrasensitive Pesticide Detection

Zhang,

Deng,

et al. 2024

ACS Appl. Nano Mater.

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Surface-enhanced Raman scattering (SERS) has been widely applied in the field of food safety due to its exceptional molecular recognition capabilities. In this study, a simple method for preparing a flexible SERS substrate was designed for the ultrasensitive real-time detection of the banned drugs malachite green (MG) and crystal violet (CV). The substrate was prepared by patterned spraying of a superhydrophobic coating prepared from candle soot onto the surface of a poly(vinyl alcohol) (PVA) sponge, followed by simple Ag nanoparticle (Ag NP) deposition in the superhydrophilic region. The PVA sponge with special hydrophilicity can completely absorb the droplets to be measured within 1−5 s without additional drying treatment. And the Ag NPs aggregated by potassium iodide (KI) resulted in a significant enhancement of the Raman signal, enabling the substrate to realize the detection of MG and CV as low as 100 fg/mL (2.74 × 10 −13 M) and 1 pg/mL (2.45 × 10 −12 M), respectively, with a long lifetime (90 days). Thanks to the excellent mechanical properties of the flexible substrate, the substrate can realize the simultaneous detection of very small amounts of MG and CV on the surface of crayfish by simple wiping, which has great application prospects in the field of food safety and field inspection.

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Section: Resultsmentioning

confidence: 99%

“…It showed significant Raman enhancement for a concentration of 10 pg/mL R6G solution. According to the relevant formula for enhancement factor (EF) , …”

Section: Resultsmentioning

confidence: 99%

Flexible Sponge Surface Enhances Raman Scattering (SERS) Substrate with Patterned Superwettability for Ultrasensitive Pesticide Detection

Zhang,

Deng,

et al. 2024

ACS Appl. Nano Mater.

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“…The construction of novel hybrid or heterostructure SERS platforms combining EM and CM has emerged as an ideal method to obtain higher Raman enhancement [36][37][38][39][40]. For example, Shao et al fabricated the first ReS 2 nanocavity-based SERS substrate on gold-modified silicon pyramids by employing a thermal evaporation technique and a hydrothermal method, which showed efficient and stable detection performance in the low-concentration detection of real samples [41].…”

Section: Introductionmentioning

confidence: 99%

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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Design two-in-one n-MoS2/p-Cu2S heterostructures for SERS monitoring and catalytic eliminating wastewater

Zhang,

Xu,

Jia

et al. 2024

Applied Surface Science

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MoS2 Nanoplatelets on Hybrid Core-Shell (HyCoS) AuPd NPs for Hybrid SERS Platform for Detection of R6G

Cited by 4 publications

References 60 publications

Flexible Sponge Surface Enhances Raman Scattering (SERS) Substrate with Patterned Superwettability for Ultrasensitive Pesticide Detection

Flexible Sponge Surface Enhances Raman Scattering (SERS) Substrate with Patterned Superwettability for Ultrasensitive Pesticide Detection

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

Design two-in-one n-MoS2/p-Cu2S heterostructures for SERS monitoring and catalytic eliminating wastewater

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