Nanostructured Raman substrates for the sensitive detection of submicrometer-sized plastic pollutants in water

Lê, Quang Trung; Ly, Nguyễn Hoàng; Kim, Moon-Kyung; Lim, Soon Hyuk; Son, Sang Jun; Zoh, Kyung-Duk; Joo, Sang‐Woo

doi:10.1016/j.jhazmat.2020.123499

Cited by 91 publications

(49 citation statements)

References 70 publications

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“…Additionally, while the concentrations utilized within this study fall within the ranges reported for use in in-vivo laboratory studies conducted with ~70 nm PS nanoparticles (i.e., 155 mg/L–32 mg/L) they are not yet as low as the roughly 1 µg/L–1 ng/L values predicted for environmental samples [ 6 , 37 ]. Thus, further consideration should also be given to the potential use of AuNPs with varying shapes (e.g., rods, stars) that may provide additional signal enhancement [ 19 , 38 ]. However, this study stands as a proof-of-concept for the detection of nanoplastic particles through the use of SERS substrates created using colloidal AuNPs.…”

Section: Discussionmentioning

confidence: 99%

Detection of Sub-Micro- and Nanoplastic Particles on Gold Nanoparticle-Based Substrates through Surface-Enhanced Raman Scattering (SERS) Spectroscopy

et al. 2021

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Small plastic particles such as micro- (<5 mm), sub-micro- (1 µm–100 nm) and nanoplastics (<100 nm) are known to be ubiquitous within our surrounding environment. However, to date relatively few methods exist for the reliable detection of nanoplastic particles in relevant sample matrices such as foods or environmental samples. This lack of relevant data is likely a result of key limitations (e.g., resolution and/or scattering efficiency) for common analytical techniques such as Fourier transform infrared or Raman spectroscopy. This study aims to address this knowledge gap in the field through the creation of surface-enhanced Raman scattering spectroscopy substrates utilizing spherical gold nanoparticles with 14 nm and 46 nm diameters to improve the scattering signal obtained during Raman spectroscopy measurements. The substrates are then used to analyze polystyrene particles with sizes of 161 nm or 33 nm and poly(ethylene terephthalate) particles with an average size of 62 nm. Through this technique, plastic particles could be detected at concentrations as low as 10 µg/mL, and analytical enhancement factors of up to 446 were achieved.

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Section: Discussionmentioning

confidence: 99%

Detection of Sub-Micro- and Nanoplastic Particles on Gold Nanoparticle-Based Substrates through Surface-Enhanced Raman Scattering (SERS) Spectroscopy

et al. 2021

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“…Lê et al. used silver‐coated gold nanostars placed in anodized aluminium oxide (Ag@AuNSs@AAO) to detect MPLs in the sub‐micrometre size range 116 . A total of 0.4 µm PS particles were tested in varying concentrations in tap, river and sea water.…”

Section: Analytes Of Interestmentioning

confidence: 99%

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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“…In the last decade, plasmonic metals—such as gold, silver, and platinum—have brought a disruptive breakthrough in analytical technologies due their unique optical properties that respond to specific applications as well as biology, 98,99 food, 100 and environments 82,83,101,102 . Since the electron density of plasmonic metal nanoparticles can couple with electromagnetic radiation of wavelengths, there is a series of study on the application of plasmonic metal nanoparticle‐based sensor platform that gives the potential of the sensor systems in practical applications as rapid assessment of water toxicity, 23 miniaturized optical and chemical sensors 21 .…”

Section: Nanostructured Sensorsmentioning

confidence: 99%

On‐Site Detection for Hazardous Materials in Chemical Accidents

Kim

Joo

2020

Bulletin Korean Chem Soc

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Chemical accidents, such as fire, explosion, and leakages, not only cause damage to humans but also have a harmful impact on the environment. In modern industrialization period, researchers have been attracted by the elaboration of novel detection platforms that have been widely adopted for monitoring and the early warning of the risk of hazardous chemicals including hydrogen fluoride, hydrogen chloride, nitric acid, ammonia, hydrogen peroxide, chlorine gas, formaldehyde, aromatic compounds such as benzene‐toluene‐xylene, and heavy metals. This review explores novel sensor platforms based on novel materials including plasmonic metals, transition metal oxides, and composites. Due to the unique optical, spectroscopic, electrical, and physicochemical properties of materials, the development of functional materials‐based sensors significantly augments the current outlook on reducing the risk of hazardous chemical accidents to ensure security for humans and the environment.

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Nanostructured Raman substrates for the sensitive detection of submicrometer-sized plastic pollutants in water

Cited by 91 publications

References 70 publications

Detection of Sub-Micro- and Nanoplastic Particles on Gold Nanoparticle-Based Substrates through Surface-Enhanced Raman Scattering (SERS) Spectroscopy

Detection of Sub-Micro- and Nanoplastic Particles on Gold Nanoparticle-Based Substrates through Surface-Enhanced Raman Scattering (SERS) Spectroscopy

Applications of surface‐enhanced Raman spectroscopy in environmental detection

On‐Site Detection for Hazardous Materials in Chemical Accidents

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