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Imaging microplastics with multiphoton tomographs
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Researchers demonstrated that multimodal multiphoton tomography, combining autofluorescence, lifetime imaging, and other optical techniques, can effectively identify and characterize microplastic particles. The study suggests this advanced imaging approach could help standardize microplastic detection methods, addressing a key challenge in environmental monitoring.
Microplastic studies are crucial due to their impact on human health and the environment. However, the lack of a standardized method for microplastic identification and quantification hinders comprehensive analysis. Our research addresses these challenges by employing the advanced imaging technique Multimodal Multiphoton Tomography (MPT) including two-photon autofluorescence (AF), fluorescence lifetime imaging (FLIM) with phasor analysis, second harmonics generation (SHG), and reflectance confocal microscopy (RCM) with 50/80 MHz femtosecond laser pulses. The combined imaging approach allows also tracking of cosmetics with microplastics in-vivo in the human skin.
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Microplastics detection and environmentally toxicity testing by multimodal optical metrology
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Researchers developed a multimodal optical system combining fluorescence, Raman spectroscopy, and toxicity testing to detect and characterize microplastics in environmental samples. The system can simultaneously identify plastic types and assess their biological toxicity in a single workflow.
Multimodal optical detection and toxicity testing of microplastics in the environment
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Researchers combined multiple optical methods — fluorescence, Raman spectroscopy, and biological toxicity assays — into a single integrated platform for detecting microplastics in environmental samples and assessing their biological harm. The multimodal approach enables faster and more comprehensive microplastic characterization than single-method techniques.
A promising method for fast identification of microplastic particles in environmental samples: A pilot study using fluorescence lifetime imaging microscopy
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Researchers piloted fluorescence lifetime imaging microscopy as a fast method for identifying microplastic particles in environmental samples. The study suggests this technique could simplify microplastic analysis by potentially eliminating the need for extensive extraction steps, enabling more direct identification of plastic particles in complex matrices.
Novel Concepts for the Detection of Microplastics
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Researchers developed novel photoluminescence-based detection concepts for identifying microplastics in environmental samples, addressing the need for more automated and reliable monitoring methods. The approach could complement existing spectroscopic techniques and contribute to the development of standardized microplastic detection protocols.
Advanced Optical Imaging Technologies for Microplastics Identification: Progress and Challenges
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This review surveys advanced optical imaging technologies used to identify microplastics and nanoplastics in environmental samples. Researchers compared techniques like Raman spectroscopy, infrared imaging, and fluorescence microscopy, noting their strengths and limitations for detecting increasingly small particles. The study highlights that improving detection methods is essential for accurately monitoring the full scope of plastic pollution.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.