We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Systematic quantitation for microplastics and nanoplastics based on size-fractionated filtration hyphenated to Raman/SERS and slope-matching strategy
ClearStrategies and Challenges of Identifying Nanoplastics in Environment by Surface-Enhanced Raman Spectroscopy
Researchers reviewed the use of surface-enhanced Raman spectroscopy (SERS) as a tool for detecting nanoplastics, which are plastic particles smaller than one micrometer. The study found that SERS offers high sensitivity for identifying individual nanoparticles, but significant challenges remain in applying this technique to complex environmental samples. The review outlines strategies for improving SERS-based nanoplastic detection to better assess environmental and health risks.
From qualitative to quantitative measurement of small microplastics using multi-detector field flow fractionation coupled offline to microscopy and raman spectroscopy
This study developed an analytical method combining multi-detector field flow fractionation with offline microscopy and Raman spectroscopy to move from simply identifying microplastics to accurately measuring their quantity in small size ranges. Improved quantification methods are critical because current inconsistencies in measurement approaches make it difficult to set health-based exposure limits or compare contamination levels across studies.
In situ surface-enhanced Raman spectroscopy for detecting microplastics and nanoplastics in aquatic environments
This study evaluated surface-enhanced Raman spectroscopy (SERS) as a method for detecting and identifying microplastics and nanoplastics in aquatic environments, demonstrating its potential for detecting particles too small for conventional spectroscopy while noting remaining challenges for field deployment.
From qualitative to quantitative measurement of small microplastics using multi-detector field flow fractionation coupled offline to microscopy and raman spectroscopy
This study developed an analytical method combining multi-detector field flow fractionation with offline microscopy and Raman spectroscopy to move from simply identifying microplastics to accurately measuring their quantity in small size ranges. Improved quantification methods are critical because current inconsistencies in measurement approaches make it difficult to set health-based exposure limits or compare contamination levels across studies.
Surface-enhanced Raman spectroscopy for size-resolved microplastic detection in real-world samples using thiophenol labeling
Researchers developed a surface-enhanced Raman spectroscopy method using thiophenol labeling for size-resolved microplastic detection in real-world samples. The technique aims to improve detection of plastic contamination across different size ranges, addressing a key challenge in environmental monitoring of microplastic pollution.
Breaking the Size Barrier: SERS-Based Ultrasensitive Detection and Quantification of Polystyrene Plastics in Real Water Samples
Researchers developed a surface-enhanced Raman spectroscopy (SERS) method capable of detecting and quantifying polystyrene plastic particles of various sizes — including nanoplastics — in real environmental water samples at ultrasensitive concentrations.
Latest Advances and Developments to Detection of Micro‐ and Nanoplastics Using Surface‐Enhanced Raman Spectroscopy
This review examines the latest developments in using surface-enhanced Raman spectroscopy (SERS) to detect micro- and nanoplastics in various environmental samples. Researchers found that SERS offers significantly improved sensitivity compared to conventional methods, enabling detection of smaller plastic particles. The study suggests that SERS-based approaches hold promise for advancing nanoplastic detection, though challenges around standardization and reproducibility remain.
A review of recent progress in the application of Raman spectroscopy and SERS detection of microplastics and derivatives
This review covers advances in using Raman spectroscopy and surface-enhanced Raman spectroscopy (SERS) to detect and identify microplastics in the environment. These techniques offer high resolution and sensitive detection that can identify specific plastic types even at very small sizes. Better detection methods are essential for understanding the true extent of microplastic contamination and its potential risks to human health.
Quantifying micro- and nanoplastics
This work addresses methodological approaches for quantifying micro- and nanoplastics in environmental samples, examining analytical techniques, sampling strategies, and measurement challenges. The publication is part of the international research literature on standardizing plastic particle detection and quantification methods.
Microplastic identification using Raman microsocpy
Researchers developed and implemented a Raman spectroscopy system for rapid detection and identification of microplastic particles on substrates. The system enables efficient chemical characterization of microplastics found across diverse environmental matrices including ocean, lakes, soil, beach sediment, and human blood.
Quantitative analysis of microplastics in seawater based on SERS internal standard method
Researchers developed a new method using surface-enhanced Raman scattering (SERS) to quantitatively detect microplastics in seawater. By using an internal standard approach, they improved accuracy compared to existing techniques that struggle with particles smaller than one micrometer. The method offers a more sensitive and practical way to measure microplastic concentrations in marine environments.
Improved Reliability of Raman Spectroscopic Imaging of Low-Micrometer Microplastic Mixtures in Lake Water by Fractionated Membrane Filtration
Researchers developed an analytical method coupling fractionated membrane filtration with Raman microspectroscopy to reliably quantify low-micrometer microplastics (1-10 micrometers) in lake water, achieving over 90% recovery of polystyrene and PMMA particles and improving image quality by separating particles into distinct size fractions.
How to Identify and Quantify Microplastics and Nanoplastics Using Raman Imaging?
This paper reviews advances in Raman imaging as a method for identifying and quantifying microplastics and nanoplastics in environmental samples, discussing current protocols, analytical challenges, and the need for standardization.
Advanced microplastic monitoring using Raman spectroscopy with a combination of nanostructure-based substrates
Researchers reviewed advances in Raman spectroscopy and surface-enhanced Raman scattering (SERS) — a technique that amplifies light signals using metallic nanostructures — for detecting micro- and nanoplastics at trace concentrations in environmental samples, highlighting new plasmonic materials, 3D substrates, and microfluidic chip platforms that enable on-site monitoring.
High sensitivity in quantitative analysis of mixed-size polystyrene micro/nanoplastics in one step
Scientists developed a new method using filtration combined with surface-enhanced Raman spectroscopy to separate and identify mixed-size micro- and nanoplastics in a single step. The technique achieved detection limits as low as parts-per-billion concentration levels and was successfully tested in real-world tap water samples. Reliable methods for detecting nanoplastics in drinking water are crucial for understanding the extent of human exposure through water consumption.
Surface-Enhanced Raman Spectroscopy Facilitates the Detection of Microplastics <1 μm in the Environment
Researchers developed a method using surface-enhanced Raman spectroscopy to detect and identify individual microplastic particles smaller than one micrometer. This technique addresses a major gap in environmental monitoring, since most current methods cannot reliably detect the smallest microplastics that may pose the greatest risk due to their ability to enter cells and tissues.
Microfluidics-based electrophoretic capture and Raman analysis of micro/nanoplastics
Researchers developed a microfluidics-based electrophoretic capture system combined with Raman spectroscopy analysis to detect and characterize micro- and nanoplastics from aquatic ecosystems, exploiting differences in polymer composition to improve identification accuracy.
Assessment of filter subsampling and extrapolation for quantifying microplastics in environmental samples using Raman spectroscopy
A subsampling method for Raman spectroscopic analysis of microplastics on laboratory filters was validated, finding that scanning just 12.5% of the filter area in a wedge pattern provided accurate and efficient estimates of whole-filter microplastic counts in sediment samples.
Towards a quantitative approach for the accurate analysis of blended microplastics based on 3-D micro-Raman spectroscopy
Researchers developed a quantitative 3D micro-Raman spectroscopy approach for accurately analyzing blended microplastic particles composed of multiple polymer types, addressing the challenge that environmentally released microplastics often originate from complex multi-polymer blended materials.
Integrating Metal Phenolic Networks-Mediated Separation and Machine Learning-Aided SERS for High-Precision Quantification and Classification of Nanoplastics
Scientists combined metal-phenolic network chemistry — which rapidly concentrates and captures nanoplastics — with machine-learning-enhanced surface-enhanced Raman spectroscopy (SERS) to accurately identify and quantify nanoplastics at very low environmental concentrations. This integrated approach addresses one of the biggest technical obstacles in nanoplastic research: detecting particles that are too small and too sparse for conventional methods to reliably find.
Closing the gap between small and smaller: towards a framework to analyse nano- and microplastics in aqueous environmental samples
This paper proposes an analytical framework for measuring both nano- and microplastics across a broad size spectrum in water samples, addressing the gap between methods optimized for either large microplastics or nanoparticles. A unified size-spanning approach is needed to fully characterize plastic pollution in aquatic environments where particles across many orders of magnitude coexist.
Controllable preparation of mesoporous spike gold nanocrystals for surface-enhanced Raman spectroscopy detection of micro/nanoplastics in water
Researchers developed a novel detection method combining membrane filtration and surface-enhanced Raman spectroscopy (SERS) using specially synthesized spiked gold nanocrystals to detect nanoplastics in water. The method can simultaneously enrich and detect nanoplastic particles as small as 20 nanometers, addressing a significant gap in reliable detection techniques for these small plastic contaminants that have been found in human blood and placenta.
Identification of Microplastics Using a Custom Built Micro-Raman Spectrometer
Researchers built a custom micro-Raman spectrometer and demonstrated its use for identifying microplastic polymer types in environmental samples, achieving sensitive and specific polymer identification at particle sizes down to a few micrometers.
Study on Rapid Recognition of Marine Microplastics Based on Raman Spectroscopy
Researchers developed a rapid identification system for marine microplastics using Raman spectroscopy, enabling quick determination of plastic type and size. Fast, accurate identification tools are critical for monitoring the growing problem of microplastic pollution in ocean environments.