Quantitative analysis of microplastics in water by Raman spectroscopy: influence of microplastic concentration on Raman scattering intensities DOI
Sung Gyu Pyo, Eun Su Jung,

Jin Hyun Choe

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 2, 2024

Abstract In this study, quantitative Raman scattering analysis was employed for the direct detection of microplastics in water. intensities varied according to change concentration Microplastic samples consisted 40–100 μm polyvinyl chloride (PVC) spherical particles; 40–48 polyethylene (PE) 0.1–1.0 wt% each microplastic sample dispersed de-ionized case PE particles water, a peak corresponding twisting CH2 bond observed at 1295 cm-1, and area integrated intensity ratio with H2O broad 3,400 cm-1 observed. The increased linearly particle concentration, linear equation R2 value were y = 0.22797x+0.0125 0.92, respectively. PVC belonging stretching vibration C–Cl appeared 637 which when expression 0.37704x-0.01821 0.88, results confirmed that water (up ~0.1 wt%, up 0.22 particles) can be directly detected by method.

Language: Английский

Recent advances in microplastic removal from drinking water by coagulation: Removal mechanisms and influencing factors DOI
Yufeng Mao, Zheng-Feng Hu, Hong Li

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 349, P. 123863 - 123863

Published: March 31, 2024

Language: Английский

Citations

22
Nondestructive analysis of plastic debris from micro to nano sizes: A state-of-the-art review on Raman spectroscopy-based techniques DOI

Han Dai,

Huiyong Li, Wei Qiu

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 176, P. 117750 - 117750

Published: May 7, 2024

Language: Английский

Citations

10
Advancements and challenges in microplastic detection and risk assessment: Integrating AI and standardized methods DOI
Hailong Zhang, Qiannan Duan,

Pengwei Yan

et al.

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 212, P. 117529 - 117529

Published: Jan. 4, 2025

Language: Английский

Citations

2
MPs Entering Human Circulation through Infusions: A Significant Pathway and Health Concern DOI Creative Commons
Tingting Huang, Yangyang Liu, Licheng Wang

et al.

Environment & Health, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Human uptake of microplastic particles (MPs) is causing increasing health concerns, and there mounting pressure to evaluate the associated risks. While MPs can be ingested, breathed in, or drank a very direct entrance channel available through ingress into bloodstream. Intravenous infusion usually proceeds from plastic bottles. Many are made polypropylene (PP), filtering applied limit particle contamination. In this study, we examined MPs' content filtrates using combination surface-enhanced Raman spectroscopy scanning electron microscopy. We find that number PP significant (∼7500 particles/L). The MP sizes range 1 62 μm, with median ∼8.5 μm. About 90% ranged between 20 μm in size, ∼60% 10 then discuss potential such injected consequences their presence highlight organs for deposition, possible clinical effects. Our quantitative data important help toxicity risks accurately balance those versus benefits intravenous injections.

Language: Английский

Citations

2
Microplastic residues in clinical samples: A retrospection on sources, entry routes, detection methods and human toxicity DOI
Neha Sharma, Vinay Kumar, S. Vimal

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 173, P. 117618 - 117618

Published: March 6, 2024

Language: Английский

Citations

9
Characterization of Small Micro-and Nanoparticles in Antarctic Snow by Electron Microscopy and Raman Micro-Spectroscopy DOI Creative Commons
Nicolò Riboni, Erika Ribezzi, L. Nasi

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(4), P. 1597 - 1597

Published: Feb. 17, 2024

The impact of the anthropic activities in Antarctica is a concerning issue. According to Scientific Committee on Antarctic Research, attention has be paid next-generation contaminants deriving from both long-range atmospheric transport and local sources. In this study, capabilities transmission electron microscopy with energy-dispersive X-ray spectroscopy Raman micro-spectroscopy were exploited evaluate size, morphology, chemical composition small micro- nanoparticles, as well their aggregates, surface snow samples collected during 2020–2021 austral summer coastal area Victoria Land near Mario Zucchelli research station. presence biological particles, mineral dust, sea salts, carbonaceous plastic nanoparticles was assessed. Sulfate, carbonate, nitrate minerals detected all samples, whereas polyethylene, poly(ethylene-co-vinyl-acetate), different kinds materials predominantly identified closest base. containing heavy metals polymers areas surrounding Italian base highlights anthropogenic polar environment, suggesting need for continuous monitoring possible threats delicate ecosystem.

Language: Английский

Citations

6
Toward Nano- and Microplastic Sensors: Identification of Nano- and Microplastic Particles via Artificial Intelligence Combined with a Plasmonic Probe Functionalized with an Estrogen Receptor DOI Creative Commons
Mimimorena Seggio, Francesco Arcadio, Eros Radicchi

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(17), P. 18984 - 18994

Published: April 18, 2024

Nano- and microplastic particles are a global emerging environmental issue that might pose potential threats to human health. The present work exploits artificial intelligence (AI) identify nano- microplastics in water by monitoring the interaction of sample with sensitive surface. An estrogen receptor (ER) grafted onto gold surface, realized on nonexpensive easy-to-produce plastic optical fiber (POF) platform order excite surface plasmon resonance (SPR) phenomenon, has been developed carry out "smart" interface (ER-SPR-POF interface). ER-SPR-POF offers output data useful for exploiting machine learning-based approach achieve particle sensors. This proof-of-concept sensor through training phase carried different particles, terms materials size. experimental results have demonstrated proposed combined AI can be used kind (polystyrene; poly(methyl methacrylate)) size (20 μm; 100 nm) an accuracy 90.3%.

Language: Английский

Citations

6
Optical detection probes and sensors for micro-/nano-plastics DOI

Ug. Praveena,

V. Raja,

K.V. Ragavan

et al.

Reviews in Environmental Science and Bio/Technology, Journal Year: 2024, Volume and Issue: 23(3), P. 569 - 599

Published: Aug. 15, 2024

Language: Английский

Citations

6
Innovative methods for microplastic characterization and detection: Deep learning supported by photoacoustic imaging and automated pre-processing data DOI

Kaitai Han,

Mengyuan Huang, Zhenghui Wang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 359, P. 120954 - 120954

Published: May 1, 2024

Language: Английский

Citations

5
The impact of analyte size on SERS enhancement location, enhancement factor, excitation wavelength, and spectrum DOI Creative Commons
Yanjun Yang, Xinyi Chen, Bin Ai

et al.

Sensors & Diagnostics, Journal Year: 2024, Volume and Issue: 3(4), P. 668 - 676

Published: Jan. 1, 2024

The study systematically explores the connection between analyte particle size and hotspot in Au nanoparticle dimer systems, highlighting need for different design strategies optimal SERS substrates tailored to accommodate size.

Language: Английский

Citations

4