Surface adsorption of hydroxyanthraquinones on CTAB-modified gold nanosurfaces

Yeo, Juhyun; Lee, Daedu; Pang, Yoonsoo

doi:10.1016/j.saa.2020.119408

Cited by 9 publications

(6 citation statements)

References 66 publications

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“…The 11.4 nm NPD5 Raman spectrum is almost identical to that of the NPD1 sample, a feature that can be explained assuming their similar particle sizes. However, the CTAB phase has a strengthening effect on spectroscopic signals. − Thus, the Raman spectrum of the NPD5 samples displays peaks with higher intensities than those found for the NPD1 sample, as exhibited in Figure S5. CTAB bands have not visibly contributed to Raman, according to Figure S6, where CTAB bands are located .…”

Section: Raman Tem Stem and Saed Analysismentioning

confidence: 91%

In Situ and after Synthesis of Magnetic Nanoarchitectures Grown onto Zeolite Type 5A/CTAB Frameworks and Their Ecotoxicological Properties

Moyano-Arocutipa

Zarria-Romero

Huertas-Chambilla

et al. 2023

Crystal Growth & Design

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Controlled-size maghemite (γ-Fe2O3) nanoparticles (NPs) were functionalized with zeolite 5A and cetyltrimethylammonium bromide (CTAB) by the co-precipitation method. The in situ and after NPs synthesis procedures were used to obtain five different nanomaterials that were broadly characterized by various physicochemical methods to ensure magnetic remediation properties. γ-Fe2O3 NPs with sizes ranging from 4.5 to 12 nm were obtained for bare NPs and also dispersed in matrices of zeolites and CTAB. Acute toxicity tests were systematically performed in the freshwater biomarker microcrustacean Daphnia magna to figure out the impact of these nanohybrids in living beings that are part of real effluents. The lethal concentrations were found to range from 103.2 mg L−1for bare γ-Fe2O3 NPs to 0.5 mg L–1 for the series of nanohybrids studied here. Morphological analysis of living beings showed some significant changes in their vital structures (heart and eye) and some malformations in some part of their eyes. This study has provided novel information on the magnetic properties of bare and functionalized iron oxide based NPs and, more relevant, their interactions and impacts on the cladoceran D. magna under controlled conditions that could be expanded to real environments after industrial water treatment.

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Section: Raman Tem Stem and Saed Analysismentioning

confidence: 91%

In Situ and after Synthesis of Magnetic Nanoarchitectures Grown onto Zeolite Type 5A/CTAB Frameworks and Their Ecotoxicological Properties

Moyano-Arocutipa

Zarria-Romero

Huertas-Chambilla

et al. 2023

Crystal Growth & Design

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“…Dropped on surface of SERS substrate 10 -6 and 10 -5 M [267] Cetyltrimethylammonium bromide (CTAB)/gold nanoparticles Hydroxyanthraquinones Mixture of SERS substrate and analyte - [ 40] Silver nanoparticles/glass fibre filter Rhodamine 6G, malachite green and crystal violet Simulated sewage solution 10 -10 ,10 -9 and 10 -9 M [71] Silver-tannin furanic foam Malachite green SERS substrate was dipped in 1 mM of analyte solution - [ 120] Silver @ UIO-66(NH2)/ polydopaminemolecularly imprinted polymer…”

Section: Rhodamine 6g and Crystal Violetmentioning

confidence: 99%

“…It was suggested that this method could be beneficial for SERS analysis of weakly adsorbing biological molecules. 40 Graphene has been incorporated in SERS substrates and provides an additional enhancement due to G-SERS or GERS (graphene-enhanced Raman scattering). Graphene has unique chemical and physical properties that are beneficial for SERS analysis including a tunable band gap, good thermal conductivity, high optical transparency, fluorescence quenching abilities and biocompatibility.…”

Section: Compositionmentioning

confidence: 99%

“…Similarly, modification of a SERS substrate has also been accomplished through aggregation of AuNPs with cetyltrimethylammonium bromide (CTAB) to obtain more sensitive detection of the synthetic dye, 1,2‐dihydroxyanthraquinone (alizarin). It was suggested that this method could be beneficial for SERS analysis of weakly adsorbing biological molecules 40 …”

Section: Sers Nanosubstratesmentioning

confidence: 99%

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Applications of surface‐enhanced Raman spectroscopy in environmental detection

Terry

Sanders

Potoff

et al. 2022

Analytical Science Advances

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As the human population grows, the anthropogenic impacts from various agricultural and industrial processes produce unwanted contaminants in the environment. The accurate, sensitive and rapid detection of such contaminants is vital for human health and safety. Surface-enhanced Raman spectroscopy (SERS) is a valuable analytical tool with wide applications in environmental contaminant monitoring. The aim of this review is to summarize recent advancements within SERS research as it applies to environmental detection, with a focus on research published or accessible from January 2021 through December 2021 including early-access publications. Our goal is to provide a wide breadth of information that can be used to provide background knowledge of the field, as well as inform and encourage further development of SERS techniques in protecting environmental quality and safety. Specifically, we highlight the characteristics of effective SERS nanosubstrates, and explore methods for the SERS detection of inorganic, organic, and biological contaminants including heavy metals, pharmaceuticals, plastic particles, synthetic dyes, pesticides, viruses, bacteria and mycotoxins. We also discuss the current limitations of SERS technologies in environmental detection and propose several avenues for future investigation. We encourage researchers to fill in the identified gaps so that SERS can be implemented in a real-world environment more effectively and efficiently, ultimately providing reliable and timely data to help and make science-based strategies and policies to protect environmental safety and public health.

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“…2c) have been shown to generate greater SERS enhancement when excited with NIR lasers. [46][47][48][49][50][51] In order to preserve the intense and distinct Raman fingerprint in the physiological environment, an encapsulating matrix, such as silica or polyethylene glycol (PEG) shell, [52][53][54][55] is often used in order to stabilize the nanomaterial core and protect the Raman reporter molecules against desorption and degradation. To further increase the SERS intensity, the resonant interactions at the metal-reporter interface can be maximized.…”

Section: Principles Of Raman Scattering Surface Enhanced Raman Scattering (Sers) and Surface Enhanced Resonance Raman Scattering (Serrs)mentioning

confidence: 99%

Advances in Surface Enhanced Raman Spectroscopy for in Vivo Imaging in Oncology

Kenry¹,

Nicolson²,

Clark³

et al. 2022

Nanotheranostics

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In the last two decades, the application of surface enhanced Raman scattering (SERS) nanoparticles for preclinical cancer imaging has attracted increasing attention. Raman imaging with SERS nanoparticles offers unparalleled sensitivity, providing a platform for molecular targeting, and granting multiplexed and multimodal imaging capabilities. Recent progress has been facilitated not only by the optimization of the SERS contrast agents themselves, but also by the developments in Raman imaging approaches and instrumentation. In this article, we review the principles of Raman scattering and SERS, present advances in Raman instrumentation specific to cancer imaging, and discuss the biological means of ensuring selective in vivo uptake of SERS contrast agents for targeted, multiplexed, and multimodal imaging applications. We offer our perspective on areas that must be addressed in order to facilitate the clinical translation of SERS contrast agents for in vivo imaging in oncology.

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Surface adsorption of hydroxyanthraquinones on CTAB-modified gold nanosurfaces

Cited by 9 publications

References 66 publications

In Situ and after Synthesis of Magnetic Nanoarchitectures Grown onto Zeolite Type 5A/CTAB Frameworks and Their Ecotoxicological Properties

In Situ and after Synthesis of Magnetic Nanoarchitectures Grown onto Zeolite Type 5A/CTAB Frameworks and Their Ecotoxicological Properties

Applications of surface‐enhanced Raman spectroscopy in environmental detection

Advances in Surface Enhanced Raman Spectroscopy for in Vivo Imaging in Oncology

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