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61,005 resultsShowing papers similar to Spectroscopies infrarouge et Raman de microalgues : étude des interactions avec des micro et nanoparticules
ClearInfrared spectroscopy as a tool to monitor interactions between nanoplastics and microalgae
Infrared spectroscopy combined with multivariate analysis detected subtle changes in the macromolecular composition of microalgae exposed to polystyrene nanoparticles, with shifts in protein and carbohydrate content indicating biochemical stress. The method offers a sensitive, rapid approach for monitoring how nanoplastics affect the biochemistry of aquatic photosynthetic organisms.
Interactions between polystyrene nanoparticles and Chlamydomonas reinhardtii monitored by infrared spectroscopy combined with molecular biology
Researchers used infrared spectroscopy combined with gene expression analysis to monitor how freshwater microalgae Chlamydomonas reinhardtii respond to polystyrene nanoparticles, finding biochemical changes in carbohydrate composition similar to nitrogen stress — suggesting nanoplastics trigger environmental stress-response pathways in algae.
Microplastic pollution: a review of techniques to identify microplastics and their threats to the aquatic ecosystem
This review summarizes existing research on methods for identifying microplastics in water and their effects on aquatic ecosystems. The paper covers detection techniques like infrared and Raman spectroscopy and discusses how microplastics threaten aquatic organisms through ingestion and entanglement. Since these contaminated organisms enter the human food chain, the findings underscore why understanding aquatic microplastic pollution matters for human health.
Identification of microplastics in the aquatic environment, or in the presence of algae Chlorella sp., by comparison of biophotonic methods
Researchers compared multiple light-based (biophotonic) methods — including FTIR, Raman spectroscopy, and fluorescence microscopy — for identifying microplastics in water samples containing algae, which can make detection much harder. They found that combining multiple methods improves accuracy and allows for real-world monitoring of microplastics in complex aquatic environments where other organic material is present.
Probenaufbereitung für die Analyse auf Mikroplastik mit µFTIR-Spektroskopie: Untersuchung des enzymatischen Verdaus von Plankton mit FlowCam und µFTIR
This German-language study tested sample preparation methods for microplastic analysis using micro-FTIR spectroscopy, comparing different approaches for extracting particles from complex environmental matrices. Optimizing sample preparation is essential for generating reliable, reproducible data on microplastic types and concentrations in environmental samples.
The development of an analytical procedure for the determination of microplastics in freshwater ecosystems
Researchers developed an improved analytical procedure for detecting and identifying microplastics in freshwater environments. The method combines careful sample preparation with advanced instrumental techniques like infrared and Raman spectroscopy. The study highlights the importance of standardized methods to ensure that microplastic measurements across different studies are reliable and comparable.
Refined Analysis of Microplastics: Integrating Infrared and Raman Spectroscopy
This study optimized the use of Fourier Transform Infrared Spectroscopy (FTIR) and Raman spectroscopy for characterizing microplastics in aquatic environments, finding that integrating both techniques improves identification accuracy and physicochemical characterization.
Detection ofMicroplastics Pollution Using a GreenFluorescent Protein-Based Microbial Biosensor Coupled with Raman Spectroscopy
Researchers developed a biosensor combining a green fluorescent protein-based microbial reporter with Raman spectroscopy for detecting microplastic pollution in aquatic environments. The dual approach enabled both qualitative identification and polymer-specific characterisation of MPs at lower cost than conventional spectroscopic methods alone.
Microplastics: Challenges, toxicity, spectroscopic and real-time detection methods
This review paper summarizes the challenges of detecting microplastics and the latest methods scientists use to find and identify them, including infrared, Raman, and fluorescence spectroscopy. It also covers the known toxic effects of microplastics on living organisms, including how they can carry harmful chemicals and pathogens. Better detection methods are important because understanding where microplastics are and what types are present is the first step toward assessing health risks.
Recognition and detection technology for microplastic, its source and health effects
This review summarizes current knowledge about detecting microplastics and their effects on human health, covering methods like FTIR spectroscopy and Raman imaging. The authors highlight that micro- and nanoplastics can cause a range of health problems including oxidative stress, reduced reproductive ability, inflammation, and damage to the circulatory and respiratory systems. The review emphasizes the urgent need for better detection methods so that researchers and regulators can accurately assess how much microplastic people are actually exposed to.
Flow Raman Spectroscopy for the Detection and Identification of Small Microplastics
Researchers developed a new method using flow Raman spectroscopy to detect and identify individual microplastic particles as small as 4 micrometers while they move through water. Unlike current methods that require complex sample preparation, this technique could work in real time for monitoring food and drinking water quality. The method can distinguish between different plastic types even after they have been weathered by the environment.
Microplastic and nanoplastic analysis in drinking water and indoor air with Raman micro-spectroscopy
Raman micro-spectroscopy was used to detect and characterize micro- and nanoplastics in drinking water and indoor air, demonstrating the technique's value for assessing human exposure to plastic particles across multiple environments.
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.
Optimizing microplastic analysis through comparative FTIR and raman spectroscopy: Addressing challenges in environmental degradation studies
This study optimized microplastic analysis by comparing FTIR and Raman spectroscopy approaches for identifying degraded polymer particles in environmental samples where photooxidation and mechanical fragmentation have altered spectral signatures. A combined spectroscopy approach outperformed either technique alone for accurately identifying degraded microplastics in complex environmental matrices.
Analysis of environmental microplastics by vibrational microspectroscopy: FTIR, Raman or both?
This study reviewed analytical methods for environmental microplastic analysis using vibrational microspectroscopy — comparing FTIR, Raman, and related techniques — and provided guidance on method selection for different sample types and research questions.
Microplastics Detection in Streaming Tap Water with Raman Spectroscopy
Researchers demonstrated that Raman spectroscopy can detect and identify microplastic particles in streaming tap water in real time, offering a rapid non-destructive method for monitoring plastic contamination in drinking water.
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.
Raman spectroscopy based detection and classification of algal blooms: A microchemical approach for environmental management
This study applied Raman spectroscopy as a microchemical tool for detecting and classifying algal blooms linked to eutrophication in aquatic ecosystems. Researchers found that the technique can identify bloom-forming organisms and associated contaminants, offering a promising approach for environmental monitoring and management of water quality issues connected to nutrient pollution.
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.
Rapid and direct detection of small microplastics in aquatic samples by a new near infrared hyperspectral imaging (NIR-HSI) method
Researchers developed a rapid near-infrared hyperspectral imaging method capable of detecting and chemically identifying small microplastics (down to a few hundred micrometers) in aquatic samples faster and with less labor than traditional spectroscopy approaches.
Outlook on optical identification of micro- and nanoplastics in aquatic environments
Researchers studied the optical properties of micro- and nanoplastics and evaluated near-infrared spectroscopy as a detection method for plastic particles in water, finding that optical techniques show promise for rapid, non-destructive identification. Improved optical detection methods could enable faster and more cost-effective monitoring of plastic pollution in aquatic environments.
Insights Into Microplastics Pollution in Aquatic Ecosystem: a Short Review of Sampling and Analysis Methods
This review summarizes current methods for sampling and analyzing microplastics in rivers and estuaries, including techniques like FTIR and Raman spectroscopy for polymer identification. The authors highlight the need for standardized sampling and analysis methods to ensure that microplastic data across different studies are reliable and comparable.
Microplastics in different water samples (seawater, freshwater, and wastewater): Methodology approach for characterization using micro-FTIR spectroscopy
Researchers developed a standardized methodology for detecting and characterizing small microplastics (10-500 micrometers) in different water types using micro-FTIR spectroscopy. The study tested various sample preparation approaches for seawater, freshwater, and wastewater, establishing reliable protocols for rinsing, digestion, and microplastic collection that can be used to assess treatment plant removal efficiency.
Green Techniques for Detecting Microplastics in Marine with Emphasis on FTIR and NIR Spectroscopy—Short Review
This review covers green detection methods for microplastics in marine environments, with a focus on Fourier transform infrared spectroscopy and near-infrared spectroscopy. Researchers found these techniques offer more efficient and accurate analysis compared to traditional visual inspection and manual sorting. The study highlights the importance of developing reliable, environmentally friendly detection methods as concerns about microplastic contamination in seafood grow.