Ultrasensitive and reusable SERS platform based on Ag modified WO3 nanoflakes for catechol detection

Barveen, Nazar Riswana; Wang, Tzyy-Jiann; Chang, Yun‐Ting; Rajakumaran, Ramanchandran

doi:10.1016/j.mseb.2022.115753

Cited by 5 publications

(3 citation statements)

References 55 publications

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“…Aniline and catechol are phenolic chemicals that have been widely used in many fields, such as the electronic industry, dye industry, rubber manufacturing, and medicine and pesticide development. However, discharging these two materials to the environment through water systems like rivers and oceans is highly hazardous to the ecosystem. − In this section, the nanowrinkled SERS substrate was applied to detect these two kinds of pollutants, and the performance of the sensor was examined. Specifically, during the experiments, 40 μL of aniline and catechol (5 × 10 –3 M) were loaded on SERS substrates prepared on both the nanowrinkled PDMS surface and flat PDMS surface followed by the acquisition of the Raman signals to compare the performance of these two substrates.…”

Section: Results and Discussionmentioning

confidence: 99%

Self-Assembly of Strain-Adaptable Surface-Enhanced Raman Scattering Substrate on Polydimethylsiloxane Nanowrinkles

Peng,

Zhang,

Wang

et al. 2024

Anal. Chem.

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Section: Results and Discussionmentioning

confidence: 99%

Self-Assembly of Strain-Adaptable Surface-Enhanced Raman Scattering Substrate on Polydimethylsiloxane Nanowrinkles

Peng,

Zhang,

Wang

et al. 2024

Anal. Chem.

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“…To conclude, tungsten(VI) oxide-based nanostructures are a promising alternative for Raman signal amplification and could contribute to the development of more versatile SERS substrates. However, so far, SERS measurements are usually made using combinations of this oxide with silver or gold nanoparticles [51,[86][87][88]. Hollow WO 3 nanospheres showed high SERS activity; the EF was estimated to be 1.6 × 10 6 [83], while decorating WO 3 nanoflakes with silver nanoparticles allows for the increase in EF to 3.9 × 10 8 , which corresponds to a 10 −10 M detection limit [86].…”

Section: Modification By Plasmonic Non-metallic Nanostructuresmentioning

confidence: 99%

Plasmonic Modification of Epitaxial Nanostructures for the Development of a Highly Efficient SERS Platform

Dumiszewska,

Michałowska,

Nozka

et al. 2023

Crystals

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Epitaxy is the process of crystallization of monocrystalline layers and nanostructures on a crystalline substrate. It allows for the crystallization of various semiconductor layers on a finite quantity of semiconductor substrates, like GaAs, InP, GaP, InGaP, GaP, and many others. The growth of epitaxial heterostructures is very complicated and requires special conditions and the precise control of the growth temperature, the pressure in the reactor, and the flow of the precursors. It is used to grow epitaxial structures in lasers, diodes, detectors, photovoltaic structures, and so on. Semiconductors themselves are not suitable materials for application in surface-enhanced Raman spectroscopy (SERS) due to poor plasmonic properties in the UV/VIS range caused by missing free electrons in the conduction band due to the existing band gap. A plasmonic material is added on top of the nanostructured pattern, allowing for the formation of mixed photon–plasmon modes called localized surface plasmon-polaritons which stand behind the SERS effect. Typically, gold and silver are used as functional plasmonic layers. Such materials could be deposited via chemical or physical process. Attention has also been devoted to other plasmonic materials, like ones based on the nitrides of metals. The SERS performance of a functional surface depends both on the response of the plasmonic material and the morphology of the underlying semiconductor epitaxial layer. In the context of SERS, epitaxial growth allows for the fabrication of substrates with well-defined 3D nanostructures and enhanced electromagnetic properties. In this work, we described the possible potential plasmonic modification, composed of various coatings such as noble metals, TiN, and others, of well-developed epitaxial nanostructures for the construction of a new type of highly active SERS platforms. This abstract also highlights the role of epitaxial growth in advancing SERS, focusing on its principles, methods, and impact. Furthermore, this work outlines the potential of epitaxial growth to push the boundaries of SERS. The ability to design substrates with tailored plasmonic properties opens avenues for ultralow concentration detection.

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“…Moreover, with the development of a portable Raman spectrometer, it is possible to rapidly detect samples on-site. As a result, it has been widely applied to detect various pollutants in water, such as dyes, , aromatic hydrocarbons, , pesticide residues, bactericide, − etc. Recently, the application of SERS technology in the detection of trace BTA began to get people’s attention, and some meaningful results were reported.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Flexible SERS Sensing Platform with High Sensitivity and Its Application in Monitoring of Trace Benzotriazole in Tap Water

Liu,

Xin,

Qin

et al. 2023

ACS EST Water

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Benzotriazole in trap water is a potentially danger for human health, and its rapid and real-time monitoring is thus very desirable. Here, a flexible SERS sensing platform was fabricated on Ti plate utilizing poly diallyldimethylammonium chloride, Ag nanoparticles, Ti3C2 nanosheets, and poly(vinyl alcohol). Next, the SERS effect for benzotriazole in water was systematically explored. Our investigation shows that this SERS sensing platform is extremely sensitive to benzotriazole in water. The limit of detection (LOD) is as low as 0.01 nmol L–1. Besides, it also possesses excellent repeatability (point-to-point RSD 6.8%) and reproducibility (batch-to-batch RSD 6.2%), strong antijamming performance, good flexibility, and outstanding mechanical stability and can respond rapidly to trace benzotriazole in water. More intriguingly, this SERS sensing platform can reveal high sensitivity for trace benzotriazole in tap water, with a minimal detection limit of 0.1 nmol L–1. Sensitive qualitative analysis as well as quantitative detection can be achieved in the range of 10–4–10–10 mol L–1, demonstrating that it may be a powerful tool in the online monitoring of trace benzotriazole in tap water. Taken together, our investigation might open up an avenue in designing MXene-based SERS substrates for real-time detecting trace benzotriazole in tap water.

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Ultrasensitive and reusable SERS platform based on Ag modified WO3 nanoflakes for catechol detection

Cited by 5 publications

References 55 publications

Self-Assembly of Strain-Adaptable Surface-Enhanced Raman Scattering Substrate on Polydimethylsiloxane Nanowrinkles

Self-Assembly of Strain-Adaptable Surface-Enhanced Raman Scattering Substrate on Polydimethylsiloxane Nanowrinkles

Plasmonic Modification of Epitaxial Nanostructures for the Development of a Highly Efficient SERS Platform

Fabrication of a Flexible SERS Sensing Platform with High Sensitivity and Its Application in Monitoring of Trace Benzotriazole in Tap Water

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