Flexible SERS substrate of silver nanoparticles on cotton swabs for rapid <i>in situ</i> detection of melamine

Huang, Wen-Chien; Cheng, Ken-Fa; Shyu, Jing-Yuan

doi:10.1039/d1na00670c

Cited by 21 publications

(8 citation statements)

References 51 publications

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“…The most commonly used SERS substrates are colloid-based due to their high stability, low cost, and ease of fabrication and implementation. Owing to the advances in nanotechnology and nanoscience, metallic nanoparticles with different shapes and sizes have been synthesized through chemical replacement [ 37 ], chemical reduction [ 38 ], thermal deposition [ 39 , 40 ], chemical deposition [ 41 ] and ultrasonic decomposition methods [ 42 ]. Due to their high surface plasmon resonance effect in the visible and the near-infrared wavelength ranges, colloidal silver and gold with sizes ranging from 10–150 nm are the most common metallic particles used for SERS-active substrates [ 29 ].…”

Section: Applications Of Sers In Drug Detectionmentioning

confidence: 99%

Recent Advances in the Use of Surface-Enhanced Raman Scattering for Illicit Drug Detection

Azimi¹,

Docoslis²

2022

Sensors

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The rapid increase in illicit drug use and its adverse health effects and socio-economic consequences have reached alarming proportions in recent years. Surface-enhanced Raman scattering (SERS) has emerged as a highly sensitive analytical tool for the detection of low dosages of drugs in liquid and solid samples. In the present article, we review the state-of-the-art use of SERS for chemical analysis of illicit drugs in aqueous and complex biological samples, including saliva, urine, and blood. We also include a review of the types of SERS substrates used for this purpose, pointing out recent advancements in substrate fabrication towards quantitative and qualitative detection of illicit drugs. Finally, we conclude by providing our perspective on the field of SERS-based drug detection, including presently faced challenges. Overall, our review provides evidence of the strong potential of SERS to establish itself as both a laboratory and in situ analytical method for fast and sensitive drug detection and identification.

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Section: Applications Of Sers In Drug Detectionmentioning

confidence: 99%

Recent Advances in the Use of Surface-Enhanced Raman Scattering for Illicit Drug Detection

Azimi¹,

Docoslis²

2022

Sensors

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“…These numbers are then used to establish a relationship between the pixel value and the concentration of the analyte, sometimes with the aid of an appropriate mathematical transformation. [14][15][16][17][18] Because of its simplicity, reliability, rapidity, low cost and portability for performing onsite tests, this type of "lab-on-smartphone" has been developed and used for chemical and bioanalytical assays in diverse elds.…”

Section: Introductionmentioning

confidence: 99%

Paper-based colorimetric sensor using Photoshop and a smartphone app for the quantitative detection of carbofuran

Wu,

Huang,

Wang

et al. 2024

Anal. Methods

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“…While a few prior studies have detailed the deposition of silver nanoparticles (NPs) onto cotton substrate, these silvercoated substrates were typically tailored for specific applications such as SERS, catalysis, or antibacterial efficacy. [35][36][37] Typically, smaller NP sizes are preferred for catalytic and antibacterial functions due to their heightened effectiveness, whereas larger particles are favored for SERS applications. [38][39][40] Thus, the fabrication of silver NP substrates is often customized to suit the demands of a particular application.…”

Section: Introductionmentioning

confidence: 99%

Controlled Growth of Silver Nanoparticles on Cotton Substrate for Enhanced SERS, Catalytic, and Antibacterial Performance

Batool,

Khan,

Shafique

et al. 2024

ChemistrySelect

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In this study, we report the growth of surfactant‐free silver nanoparticles (NPs) on cotton through a facile chemical reduction method, iteratively applied to gradually increase and control the concentration of silver NPs. Our substrates showed enhanced performance in surface enhanced Raman spectroscopy (SERS), catalytic, and antibacterial properties, all attributable to the high concentration of NPs on the cotton and their surfactant‐free nature. While the antibacterial properties improve with increasing growth cycles, SERS and catalytic properties first increase from the first to fourth growth cycles and then decrease for the fifth growth cycle. For substrate with optimum deposition for SERS, rhodamine 6G (R6G) analyte down to nanomolar concentrations were detectable, with a linear correlation of intensity versus concentration and exhibit excellent uniformity in the SERS signal. Furthermore, the catalytic activity of our substrates against the degradation of methyl orange (MO) was impressive with a rate constant of 0.0866 min−1 for the first growth cycle, which increased by ~3.4‐fold to 0.2979 min−1 for the fourth growth cycle. Finally, the substrates showed excellent antibacterial activity towards both Gram‐negative (E. coli) and Gram‐positive (S. aureus) bacteria. For both bacteria, the zone of inhibition increased with increasing growth cycles.

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Flexible SERS substrate of silver nanoparticles on cotton swabs for rapid in situ detection of melamine

Abstract: It is important to be able to detect melamine via a sensitive and fast method in the field of food safety. Surface-enhanced Raman scattering (SERS) has attracted much attention due...

Cited by 21 publications

References 51 publications

Recent Advances in the Use of Surface-Enhanced Raman Scattering for Illicit Drug Detection

Recent Advances in the Use of Surface-Enhanced Raman Scattering for Illicit Drug Detection

Paper-based colorimetric sensor using Photoshop and a smartphone app for the quantitative detection of carbofuran

Controlled Growth of Silver Nanoparticles on Cotton Substrate for Enhanced SERS, Catalytic, and Antibacterial Performance

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