Application of two-dimensional layered materials in surface-enhanced Raman spectroscopy (SERS)

Luo, Wen; Xiong, Wenhui; Han, Yuenan; Xin, Yan; Mai, Liqiang

doi:10.1039/d2cp03650a

Cited by 15 publications

(6 citation statements)

References 116 publications

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“…2 Substrates for surface-enhanced Raman spectroscopy 2.1 MXene directly as a substrate material for SERS MXenes have recently attracted considerable interest and research because of their excellent metallic conductivity, hydrophilicity, and flexibility (Luo et al, 2022). Unlike noble metal materials, the non-noble material MXene has more abundant physicochemical properties and shows encouraging selectivity and sensitivity, offering great possibilities for optimizing performance (Tyagi et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Substrate types and applications of MXene for surface-enhanced Raman spectroscopy

Liu,

Wang,

et al. 2024

Front. Chem.

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Surface-enhanced Raman spectroscopy (SERS) has been widely used in the analysis of analytes because of its unique fingerprint characteristics, high sensitivity, and fast detection response. MXene is widely used in SERS studies among the various substrates due to its ultra-high chemical stability, excellent conductivity, hydrophilicity, and low fabrication cost. This mini-review summarizes MXene’s research in the SERS field from two aspects. We reviewed MXene materials used as SERS substrates alone and combined with noble metal particles primarily. Subsequently, we outlined representative applications of MXene-based SERS in biomedicine, food safety, and environmental monitoring. Moreover, we discussed the technical bottleneck and the prospect of future development in this field.

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Section: Introductionmentioning

confidence: 99%

Substrate types and applications of MXene for surface-enhanced Raman spectroscopy

Liu,

Wang,

et al. 2024

Front. Chem.

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“…22 When the incident photon frequency coincides with the resonance, it amplifies the Raman signal intensity. 22,23 This mechanism has been utilized here for CFX detection.…”

Section: ■ Introductionmentioning

confidence: 99%

“…This charge transfer produces charge transfer intermediates of the complex with a larger Raman cross-section than the independent analyte molecule . When the incident photon frequency coincides with the resonance, it amplifies the Raman signal intensity. , This mechanism has been utilized here for CFX detection.…”

Section: Introductionmentioning

confidence: 99%

Trace Detection of Ciprofloxacin in Milk by Label-Free Raman Enhancement using Two-Dimensional Magnesiochromite

Chakraborty,

Kumbhakar,

Mahapatra

et al. 2023

ACS Appl. Eng. Mater.

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Antibiotic resistance and adverse reactions in humans can be avoided by detecting antibiotics early in the milk supply chain. To meet the demand, we developed a flexible and simple optical sensing method based on a non-van der Waals two-dimensional (2D) metal oxide, 2D-magnesiochromite (2D-MgCr2O4). We used a rapid, label-free Raman enhancement mechanism for antibiotic detection. The Raman spectral mapping method has also been used to quickly identify traces of antibiotics in food products. Here, we have used UV–visible spectroscopy, Raman spectroscopy, and Raman imaging to analyze the 2D material’s detection potential in water initially and finally in milk. The device has over a month-long shelf life, even when stored in typical atmospheric conditions, and the acquired detection limits are 30 ng/mL by UV–visible spectroscopy and 10 ng/mL by Raman spectroscopy in milk. Such methods can be extended to detection of other toxic ingredients in food products.

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“…Particularly interesting for SERS applications are the 2D materials [59][60][61][62][63][64]. They may provide some advantages over metal-based 3D materials, such as: higher inertness, due to the non-covalent nature exhibited, in general, by their interactions with the analyte; lower production costs, due to the reduction of the material amount employed; and a reduced signal-to-noise ratio, due to their smoother surfaces.…”

Section: Introductionmentioning

confidence: 99%

Simulating Detection of Dioxin-like Pollutants with 2D Surface Enhanced Raman Spectroscopy using h-BNC Substrates

Valencia-Alvarado¹,

Otero²,

Mandado³

et al. 2023

Preprint

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The ability of 2D hybrid structures formed by boron, nitrogen and carbon atoms (h-BNCs) as potential substrates for surface enhanced Raman spectroscopy (SERS) detection of dioxin-like pollutants is theoretically analyzed. The strong confinement and high tunability of the electromagnetic response of the carbon nanostructures embedded within the h-BNC sheets point out that these hybrid structures could be promising for applications in optical spectroscopies, such as SERS. In this work, two model dioxin-like pollutants, TCDD and TCDF, and a model h-BNC surface composed by a carbon nanodisk of ninety-six atoms surrounded by a string of borazine rings, BNC96, are employed for the simulation of the adsorption complexes and the static and pre-resonance Raman spectra of the adsorbed molecules. A large affinity of BNC96 by these pollutants is reflected on the large interaction energies obtained for the most stable stacking complexes, with dispersion being the most important contribution to their stability. The large vibrational coupling of some active modes of TCDF and, specially, of TCDD makes the Raman static spectra display a ‘pure’ chemical enhancement of one order of magnitude. On the other hand, due to the strong electromagnetic response of BNC96, confined within the carbon nanodisk, pre-resonance Raman spectra obtained for TCDD and TCDF display large enhancement factors of 108 and 107, respectively. Promisingly, laser excitation wavelengths frequently used in SERS experiments also provoke significant Raman enhancements, around 104, for the TCDD and TCDF signals. Both the strong confinement of the electromagnetic response within the carbon domains and the high modulation of the resonance wavelengths within the visible and/or UV ranges in h-BNCs should lead to a higher sensitivity than graphene and white graphene parent structures, solving one of the main disadvantages of using 2D substrates for SERS applications.

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Application of two-dimensional layered materials in surface-enhanced Raman spectroscopy (SERS)

Abstract: The subject of this Perspective is the application of two-dimensional (2D) layered materials in surface enhanced Raman spectroscopy (SERS). 2D materials are regarded as promising SERS substrates because of their...

Cited by 15 publications

References 116 publications

Substrate types and applications of MXene for surface-enhanced Raman spectroscopy

Substrate types and applications of MXene for surface-enhanced Raman spectroscopy

Trace Detection of Ciprofloxacin in Milk by Label-Free Raman Enhancement using Two-Dimensional Magnesiochromite

Simulating Detection of Dioxin-like Pollutants with 2D Surface Enhanced Raman Spectroscopy using h-BNC Substrates

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