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Papers
61,005 resultsShowing papers similar to Combining microcavity size selection with Raman microscopy for the characterization of Nanoplastics in complex matrices
ClearInvestigation of Detection Method for Nanoplastics in Shellfish
Researchers investigated detection methods for nanoplastics in shellfish, evaluating analytical techniques capable of identifying and quantifying nanoscale plastic particles in bivalve tissues. The study addresses the methodological challenges of isolating and characterizing nanoplastics from complex biological matrices.
Application of Raman microspectroscopy for the characterization of microplastics in clam Chamelea gallina
Researchers developed an extraction and filtration protocol using Raman microspectroscopy to characterize microplastics down to 1 μm in the clam Chamelea gallina, optimizing filter selection based on recovery rate, filtration time, readability, and cost.
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.
Optimization of a protocol for the extraction and chemical characterization of microplastics in Chamelea gallina by Raman microspectroscopy
Researchers optimized an extraction and chemical characterization protocol for microplastics in bivalve molluscs, improving polymer identification through combined spectroscopic methods. The validated protocol provides a reliable approach for routine microplastic monitoring in shellfish used as bioindicators.
Optimization of a protocol for the extraction and chemical characterization of microplastics in Chamelea gallina by Raman microspectroscopy
This study optimized a protocol for extracting and chemically characterizing microplastics in the striped venus clam (Chamelea gallina) using Raman microspectroscopy, addressing the challenge of analyzing microplastics in complex biological matrices for food safety and environmental monitoring.
Optimization of a protocol for the extraction and chemical characterization of microplastics in Chamelea gallina by Raman microspectroscopy
Researchers developed and optimized a protocol for extracting and chemically characterizing microplastics from bivalve molluscs, which are widely used as bioindicators of coastal water quality. The protocol improved recovery rates and polymer identification compared to previously used methods.
Detection of microplastics in a digested complex organic medium by Raman Tweezers
Researchers used Raman tweezers to optically trap and identify individual polystyrene microbeads within a complex biological medium produced by digesting mussels. This technique shows that optical trapping can detect microplastics in challenging biological matrices relevant to food safety monitoring.
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.
Misinterpretation in microplastic detection in biological tissues: When 2D imaging is not enough
Researchers demonstrated that 2D Raman imaging alone can misidentify microplastics in biological tissues, showing that 3D confocal Raman imaging is necessary to accurately distinguish microplastic particles from tissue components in mussels.
Spectro‐Microscopic Techniques for Studying Nanoplastics in the Environment and in Organisms
This review examines spectro-microscopic techniques for detecting and characterizing nanoplastics (under 1 um) in environmental and biological matrices, arguing that effective analysis requires combining particle imaging with chemical characterization of the same particles, and highlighting methods capable of simultaneous morphological and chemical identification.
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.
Analysis of microplastics of a broad size range in commercially important mussels by combining FTIR and Raman spectroscopy approaches
Researchers developed an approach combining FTIR and Raman spectroscopy to analyze microplastics across a broad size range in commercially important mussels. They found that using both techniques together captured a wider spectrum of particle sizes and polymer types than either method alone. The study provides a more complete picture of microplastic contamination in seafood and highlights the importance of using complementary analytical methods for accurate assessment.
Correlative SEM-Raman microscopy to reveal nanoplastics in complex environments
Researchers developed a correlative approach combining scanning electron microscopy and Raman microscopy to detect and identify nanoplastics as small as 100 nanometers in complex environmental samples. The method was tested on various matrices and successfully identified individual plastic nanoparticles that would be missed by conventional techniques. The study represents a significant advance in analytical capability for studying the smallest and most challenging size fraction of plastic pollution.
Detection of microplastics and nanoplastics: Are Raman tweezers and enhanced Raman methods the solution for sub 20 μm particles?
Raman tweezers — devices that use a laser beam to trap and analyze individual particles — combined with plasmonic enhancement techniques can detect and characterize nanoplastics and microplastics smaller than 20 µm, a size range that defeats most conventional filtration-based detection methods. Improving detection sensitivity for the smallest plastic particles is critical because nanoplastics are thought to be the most biologically active fraction, capable of crossing cell membranes and accumulating in tissues.
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.
DEVELOPMENT OF A NOVEL PROTOCOL FOR THE EXTRACTION OF SMALL MICROPLASTICS (1-5 µm) FROM BIOLOGICAL TISSUES
Researchers developed a novel extraction protocol to isolate and quantify small microplastics (1–5 µm) from biological tissues, addressing a major gap in marine contamination studies. The method improves detection of these hard-to-analyze particles, which are more likely to penetrate cells and accumulate in organisms.
Extraction and identification of microplastics from mussels: Method development and preliminary results
Scientists developed and validated a method for extracting and identifying microplastics from mussel tissue, then applied it to measure contamination in commercially harvested mussels. The method produced reliable, reproducible results, providing a practical tool for monitoring microplastic levels in one of the world's most widely consumed shellfish.
Detection, counting and characterization of nanoplastics in marine bioindicators: a proof of principle study
Researchers demonstrated a proof-of-concept workflow for detecting and counting nanoplastic particles (below 1 µm) in marine invertebrate tissues using electron microscopy and spectroscopic confirmation, finding nanoplastics in marine bioindicator species and establishing a methodology for future monitoring programs.
Expanding sample volume for microscopical detection of nanoplastics
Scientists developed a new method that can detect nanoplastics in much larger water samples than was previously possible, scaling up from tiny droplets to full liters of seawater. The technique combines specialized membrane filters with enhanced Raman spectroscopy to identify individual nanoplastic particles. This advancement addresses a major technical barrier in understanding how widespread nanoplastic contamination really is in ocean environments.
Improved Raman spectroscopy-based approach to assess microplastics in seafood
Researchers developed an improved Raman spectroscopy protocol for assessing microplastics in seafood, using green-lipped mussels and Japanese jack mackerel as test models. The study identified key methodological challenges in sample preparation and analysis, and proposed solutions that improve the accuracy and efficiency of microplastic identification in food products.
A Review of Spectroscopic Techniques used for the Quantification and Classification of Microplastics and Nanoplastics in the Environment
This review evaluates spectroscopic techniques — including Raman, FTIR, NIR, ICP-MS, fluorescence, X-ray, and NMR — for identifying and quantifying microplastics and nanoplastics in environmental and biological matrices, covering methodologies, sample handling, and applications.
Micro and Nanoplastics size distribution in mussel tissues: first evidence, identification, and quantification in the nanogram range
Italian researchers used a highly sensitive mass spectrometry technique to detect and quantify both microplastics and nanoplastics in farmed mussels, finding plastic particles in every sample tested. Nanoplastics in the 20–200 nm range were present in substantial quantities, and the authors estimate that European seafood consumers could ingest over 2 milligrams of nanoplastics per year through mussel consumption alone. This is one of the first studies to directly quantify nanoplastics in a commonly eaten seafood, raising significant concerns about dietary exposure.
Online Coupling of Field-Flow Fractionation with Raman Microspectroscopy Enables the Advanced Study of Nanoplastics Directly in Food
Researchers developed an online coupling of field-flow fractionation with Raman microspectroscopy to enable direct detection and characterisation of nanoplastics in complex food matrices, overcoming limitations of existing methods that require laborious sample preparation.
Extraction method development for nanoplastics from oyster and fish tissues
Researchers developed a method for extracting nanoplastics from oyster and fish tissues using enzymatic digestion, sequential membrane filtration, and purification steps, addressing a critical methodological gap for assessing nanoplastic contamination in seafood.