Investigation of silver nanorods as reusable SERS-active substrates for trace level detection of 2-MIB volatile organic compound

Botta, Raju; Eiamchai, Pitak; Horprathum, Mati; Limwichean, Saksorn; Chananonnawathorn, Chanunthorn; Patthanasettakul, Viyapol; Nuntawong, Noppadon

doi:10.1016/j.snb.2018.05.110

Cited by 32 publications

(16 citation statements)

References 43 publications

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“…high‐purity (99.99%) silver material (K. J. Lesker made) was used as a sputtering target. In our earlier reports, it is reported that average nanorods lengths of ~1 μm have produced intense Raman signal with 85° oblique angle deposition. Therefore, the same condition has been used in the present study, and other conditions as reported in Raju Botta et al were used to fabricate the zigzag silver nanorod (ZZ AgNR).…”

Section: Experimental Techniquesmentioning

confidence: 87%

“…In the present study, a sputtering technique is used to fabricate the SERS‐active substrates. In our earlier studies, it was reported that the SERS substrates were fabricated using sputtering technique, which showed good sensitivity, uniformity, and applicability in various fields . The developed substrates also offer uniform stability and reproducibility.…”

Section: Introductionmentioning

confidence: 99%

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Detection and classification of volatile fatty acids using surface‐enhanced Raman scattering and density functional theory calculations

Chindaudon

Eiamchai

Horprathum

et al. 2019

J Raman Spectroscopy

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Volatile fatty acids of acetic, butyric, lactic, and propionic acids play an important role in the methane fermentation process. Particularly significant amount of propionic acid presence in the process will influence the methane fermentation efficiency. Herein, zigzag‐aligned silver nanorods were designed as surface‐enhanced Raman scattering (SERS)‐active substrates to establish the classification of volatile fatty acids against the traditional poor sensitive and time‐consuming titration and gas chromatography methods. SERS and chemometric method of principal component analysis is used for the detection and classification of volatile fatty acids. Density functional theory calculations were performed to understand the Raman vibrations and compare with experimental observations and to aid in the assignments of spectral lines. For the first time, the authors have used SERS technique to classify the acids. The findings suggest that this method is of great potential in the field of methane fermentation from industrial waste.

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Section: Experimental Techniquesmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Detection and classification of volatile fatty acids using surface‐enhanced Raman scattering and density functional theory calculations

Chindaudon

Eiamchai

Horprathum

et al. 2019

J Raman Spectroscopy

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View full text Add to dashboard Cite

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“…Although remarkable advancements in integrating oxide with AgNRs for the purpose of stability improvement, the cost of substrates emerges as another non-negligible issue which could limit the commercial utilization of SERS technique. To overcome this problem, the physical approaches including solvent washing and heat treatment as well as the chemical approach, such as photocatalysis were usually employed toward realizing substrates recyclability (Lin et al, 2012; Hou et al, 2015b; Ma et al, 2015a; Weng et al, 2016; Botta et al, 2018b). For AgNRs substrates, due to its susceptibility to heat and UV illumination, solvent washing becomes the common approach to remove adsorbed molecules from substrates.…”

Section: Synthesis and Properties Of Agnrs-based Nanostructuresmentioning

confidence: 99%

“…For AgNRs substrates, due to its susceptibility to heat and UV illumination, solvent washing becomes the common approach to remove adsorbed molecules from substrates. For example, Botta et al examined the feasibility of reusing AgNRs through a simple de-ionized water washing (Botta et al, 2018b). They found that analytes molecules could be completely rinsed off from substrates and almost similar Raman signals re-appeared after analytes re-adsorbing on the substrates in the first three adsorption-desorption cycles.…”

Section: Synthesis and Properties Of Agnrs-based Nanostructuresmentioning

confidence: 99%

Ag Nanorods-Based Surface-Enhanced Raman Scattering: Synthesis, Quantitative Analysis Strategies, and Applications

Zou

et al. 2019

Front. Chem.

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Surface-Enhanced Raman Scattering (SERS) is a powerful technology that provides abundant chemical fingerprint information with advantages of high sensitivity and time-saving. Advancements in SERS substrates fabrication allow Ag nanorods (AgNRs) possess superior sensitivity, high uniformity, and excellent reproducibility. To further promote AgNRs as a promising SERS substrate candidate to a broader application scope, oxides are integrated with AgNRs by virtue of their unique properties which endow the AgNRs-oxide hybrid with high stability and recyclability. Aside from SERS substrates fabrication, significant developments in quantitative analysis strategies offer enormous approaches to minimize influences resulted from variations of measuring conditions and to provide the reasonable data analysis. In this review, we discuss various fabrication approaches for AgNRs and AgNRs-oxide hybrids to achieve efficient SERS platforms. Then, we introduce three types of strategies which are commonly employed in chemical quantitative analysis to reach a reliable result. Further, we highlight SERS applications including food safety, environment safety, biosensing, and vapor sensing, demonstrating the potential of SERS as a powerful and promising technique. Finally, we conclude with the current challenges and future prospects toward efficient SERS manipulations for broader real-world applications.

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“…Packet buffering is used by B.A.T.M.A.N unstable routes. However, delay is still increasing [13]- [17].…”

Section: Introductionmentioning

confidence: 99%

Low-cost wireless mesh communications based on openWRT and voice over internet protocol

Aminah

Raharjo

Budiman

2021

IJECE

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Technology makes it easier for us to communicate over a distance. However, there are still many remote areas that find it difficult to communicate. This is due to the fact that communication infrastructure in some areas is expensive to build while the profit will be low. This paper proposes to combine voice over internet protocol (VoIP) over mesh network implemented on openWRT router. The routers are performing mesh functions. We set up a VoIP server on a router and enabled session initiation protocol (SIP) clients on other routers. Therefore, we only need routers as a means of communication. The experiment showed very good results, in the line-of-sight (LOS) condition, they are limited to reception distances up to 145 meters while in the non-line-of-sight (NLOS) condition, they are limited to reception distances up to 55 meters.

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Investigation of silver nanorods as reusable SERS-active substrates for trace level detection of 2-MIB volatile organic compound

Cited by 32 publications

References 43 publications

Detection and classification of volatile fatty acids using surface‐enhanced Raman scattering and density functional theory calculations

Detection and classification of volatile fatty acids using surface‐enhanced Raman scattering and density functional theory calculations

Ag Nanorods-Based Surface-Enhanced Raman Scattering: Synthesis, Quantitative Analysis Strategies, and Applications

Low-cost wireless mesh communications based on openWRT and voice over internet protocol

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