Reusable Au/Pd-coated chestnut-like copper oxide SERS substrates with ultra-fast self-recovery

Shvalya, Vasyl; Filipič, Gregor; Vengust, Damjan; Zavašnik, Janez; Modić, Martina; Abdulhalim, Ibrahim; Cvelbar, Uroš

doi:10.1016/j.apsusc.2020.146205

Cited by 29 publications

(27 citation statements)

References 57 publications

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“…Alternatively, strongly adsorbed chemical species can be removed from the surface of enhancing substrates using oxidative plasma cleaning, which can be completed within seconds and is generally applicable to solid enhancing substrates. [229][230][231] However, this requires the use of expensive laboratory-based specialist equipment which is undesirable for the routine applications of SERS in-field. A cheap, mild and rapid method, which has been demonstrated to be highly effective even for the removal of strongly adsorbed analytes, such as thiols and pyridines, on both Ag and Au enhancing surfaces, is treatment with sodium borohydride solution.…”

Section: Simple Substrate Recycling Proceduresmentioning

confidence: 99%

Towards practical and sustainable SERS: a review of recent developments in the construction of multifunctional enhancing substrates

Huang

et al. 2021

J. Mater. Chem. C

135

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Section: Simple Substrate Recycling Proceduresmentioning

confidence: 99%

Towards practical and sustainable SERS: a review of recent developments in the construction of multifunctional enhancing substrates

Huang

et al. 2021

J. Mater. Chem. C

135

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“…In conclusion, plasmonics is playing an important role in the advancement of SARS-CoV-2 sensors for fast, efficient, and costeffective detection. Continuing efforts and further developments of large area plasmonic nanostructures using a variety of techniques, such as roll-to-roll patterning, superparamagnetic particles production, microspheres lithography, nanoimprinting, interference lithography, oblique angle deposition, as well as novel designs with improved performance, such as self-referenced sensing, larger penetration depth, improved figure of merit, and more accurate reading methodologies are helping in bringing the cost down, and enabling simple testing due to the larger area substrates and signal amplification useful for SPR, LSPR, SEF, SERS, and SEIRA methods [102][103][104][105][106][107][108][109][110][111][112][113][114][115][116][117] . In parallel with rapid development of specific binding agents, these advances improve the prospects that these methods could benefit the pandemic effort in the near future, providing cost-effective, simple, fast and specific detection of coronavirus, and thereby helping in disease control.…”

Section: Discussionmentioning

confidence: 99%

A comprehensive review on plasmonic-based biosensors used in viral diagnostics

2021

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The proliferation and transmission of viruses has become a threat to worldwide biosecurity, as exemplified by the current COVID-19 pandemic. Early diagnosis of viral infection and disease control have always been critical. Virus detection can be achieved based on various plasmonic phenomena, including propagating surface plasmon resonance (SPR), localized SPR, surface-enhanced Raman scattering, surface-enhanced fluorescence and surface-enhanced infrared absorption spectroscopy. The present review covers all available information on plasmonic-based virus detection, and collected data on these sensors based on several parameters. These data will assist the audience in advancing research and development of a new generation of versatile virus biosensors.

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“…Plasma treatment is an effective approach for the rapid degradation of chemicals having multiple aromatic rings in their structure. [43] For instance, Okeil et al used a low-pressure Ar plasma to remove analyte residuals from granular and porous Ag films. [44] Because of Au film's better oxidation resistance than Ag, we were able to use a combination of Ar and O 2 gases to obtain a synergetic effect of cleaning.…”

Section: Plasmonic and Optical Propertiesmentioning

confidence: 99%

Label‐Free Mycotoxin Raman Identification by High‐Performing Plasmonic Vertical Carbon Nanostructures

Santhosh

Shvalya

Modić

et al. 2021

Small

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starts with aflatoxins (AFs) where aflatoxin B 1 (AFB 1 ) occupies a leading position as the most potent natural carcinogen. [1] The rest are considered less toxic; nevertheless, their ingestion can still lead to serious health-related complications, especially with long-term exposure and consequent accumulation in living organisms. Mycotoxins such as fumonisins, zearalenone (ZEN), trichothecenes, and alternariol mycotoxins induce many different toxicities, including genotoxicity, mutagenicity, neurotoxicity, hepatotoxicity, immunosuppression, and endocrine disruption. [2,3] Many mycotoxins induce toxicity at ppm levels, whereas AFs are already dangerous at ppb levels. Such low concentrations pose a problem as it is extremely challenging to detect and distinguish between different types of mycotoxins. Current analytical methods, such as different types of chromatography and enzyme-linked immunosorbent assay, are time consuming or require complex sample preparation, data collection, and analysis. A method possessing better analytical performance and providing reliable results within a short time is a "holy grail" dream in healthcare applications, [4] but characteristic of plasmon-coupled Raman scattering. A spectroscopic tool is considered a cutting-edge method for biosensing applications, especially in the food industry, where product quality monitoring is of prior interest.Surface-enhanced Raman spectroscopy (SERS) is closely associated with nanoengineering of nanorough plasmonic substrates, serving as an origin for photon scattering's electromagnetic enhancement. [5] A prominent nanoroughness and a high aspect ratio at the atomic scale are the surface properties for customizing optically induced regions with strong electric field confinement, known as "hot spots". Surface patterns composed of vertically standing, inclined pillar-like structures with rough sidewalls and developed tips, willing to provide excellent plasmonic media, are considered as substrates to build up high-performing SERS-active detectors. The superior analytical sensitivity, temporal stability, chemical inertness and reusability, of such templates are crucial for SERS sensing and directly linked to fabrication strategies. Recently, the large-scale production methodologies listing lithography related, [6,7] oblique angle deposition techniques, [8,9] and surface etching approaches [10,11] have proved SERS usability of metallic, metal coated and nanometer-thick oxide-layer protected pillar-like substrates. Although, Mycotoxins are widespread chemical entities in the agriculture and food industries that can induce cancer growth and immune deficiency, posing a serious health threat for humankind. These hazardous compounds are produced naturally by various molds (fungi) that contaminate different food products and can be detected in cereals, nuts, spices, and other food products. However, their detection, especially at minimally harmful concentrations, remains a serious analytical challenge. This research shows that highperforming plasmonic substr...

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Reusable Au/Pd-coated chestnut-like copper oxide SERS substrates with ultra-fast self-recovery

Cited by 29 publications

References 57 publications

Towards practical and sustainable SERS: a review of recent developments in the construction of multifunctional enhancing substrates

Towards practical and sustainable SERS: a review of recent developments in the construction of multifunctional enhancing substrates

A comprehensive review on plasmonic-based biosensors used in viral diagnostics

Label‐Free Mycotoxin Raman Identification by High‐Performing Plasmonic Vertical Carbon Nanostructures

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