Papers

20 results
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Article Tier 2

Intelligent Digital Holographic systems to counteract microplastic pollution in marine waters

Researchers developed a digital holography system capable of detecting and classifying microplastic particles in seawater in a label-free, high-throughput manner. The system can identify plastic particles that are otherwise invisible to the naked eye and can be adapted for use with microfluidic devices. This technology offers a faster and more compact alternative to traditional microscopy methods for marine microplastic monitoring.

2022 2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea) 4 citations
Article Tier 2

Automatic Detection of Microplastics by Deep Learning Enabled Digital Holography

Researchers developed a digital holography system combined with deep learning to automatically detect and identify microplastics in water without manual image analysis. The system processes raw holographic images directly, offering a faster and more scalable approach to microplastic monitoring in environmental samples.

2020 Imaging and Applied Optics Congress 12 citations
Article Tier 2

Polarization digital holography for advanced classification of microplastic particles

Researchers developed a polarization digital holography approach for classifying microplastic particles based on their optical birefringence properties, requiring minimal sample preparation. The non-destructive method can distinguish microplastics from biological material by detecting how particles alter light polarization states.

2025
Article Tier 2

Micro-Objects Classification for Microplastic Pollution Detection using Holographic Images

Researchers developed a machine learning system that uses holographic 3D images to automatically classify microplastics in water samples, distinguishing them from other microscopic particles with high precision. Current microplastic monitoring is slow and labor-intensive, so automated detection tools are essential for large-scale environmental surveillance. This approach could significantly speed up the monitoring of microplastic pollution in aquatic environments.

2024 2 citations
Article Tier 2

Holographic and polarization features analysis for microplastics characterization and water monitoring

Researchers explored digital holography and polarization imaging as a combined technique for characterizing and classifying microplastics in water, computing features including angle of polarization (AoP) and degree of linear polarization (DoLP) to distinguish microplastics from biological and natural particles. The method demonstrated potential for real-time, non-contact, in situ microplastic detection and water quality monitoring.

2023 4 citations
Article Tier 2

Identification of microplastics in a large water volume by integrated holography and Raman spectroscopy

A new technique combining holography and Raman spectroscopy was demonstrated to identify plastic pellets suspended in a large volume of water without physical contact. This non-destructive approach could enable real-time, in-water microplastic detection for environmental monitoring.

2020 Applied Optics 45 citations
Article Tier 2

Microplastic Identification via Holographic Imaging and Machine Learning

Researchers combined holographic imaging with machine learning algorithms to automatically identify and classify microplastics in water samples, achieving accurate particle detection without manual microscopy. This automated approach could significantly speed up microplastic monitoring in environmental samples.

2019 Advanced Intelligent Systems 155 citations
Article Tier 2

Identification of Microplastics Based on the Fractal Properties of Their Holographic Fingerprint

Researchers developed an AI-enabled holographic imaging approach to identify microplastics in water using the fractal properties of their holographic fingerprints, offering a fast, label-free identification method.

2021 ACS Photonics 57 citations
Article Tier 2

Snapshot Polarization-Sensitive Holography for Detecting Microplastics in Turbid Water

Researchers developed a new imaging technique combining holography and polarimetry to detect microplastic particles in turbid water, a setting where traditional detection methods struggle. The approach uses differences in how light polarizes when passing through plastic versus natural particles to distinguish microplastics even in murky conditions. The study demonstrates a promising tool for faster, more practical monitoring of microplastic pollution in real-world water environments.

2023 ACS Photonics 27 citations
Article Tier 2

Polarization-sensitive digital holography for microplastic identification through scattering media

Researchers designed a polarization-sensitive holographic imaging system capable of identifying transparent microplastics through scattering media by measuring the degree of linear polarization (DoLP) as an angle-independent discriminating feature. The system enables non-destructive differentiation of microplastic types in turbid or complex optical environments where conventional imaging methods fail.

2023 3 citations
Article Tier 2

Microplastic pollution assessment with digital holography and zero-shot learning

Researchers developed a digital holography system combined with zero-shot machine learning to identify and characterize microplastics in environmental samples without requiring labeled training data, offering a promising automated tool for large-scale microplastic monitoring.

2022 APL Photonics 31 citations
Article Tier 2

Microplastic pollution monitoring with holographic classification and deep learning

This study used digital holographic microscopy combined with deep learning to classify microplastic particles in water samples, achieving high classification accuracy and demonstrating the potential for automated, high-throughput microplastic monitoring.

2021 Journal of Physics Photonics 67 citations
Article Tier 2

Polarization Holographic Imaging for High-throughput Microplastic Analysis

Researchers developed a polarization holography system integrated with deep learning for high-throughput microplastic detection and analysis in aqueous environments. The system enables dynamic, real-time multimodal monitoring of microplastics by leveraging polarization contrast to distinguish particles in liquid samples.

2023 3 citations
Article Tier 2

Real-time microplastic detection using polarization digital holographic microscope

Researchers developed a real-time microplastic detection system using a polarization digital holographic microscope, enabling identification and characterization of MP particles in water based on their optical properties without the need for chemical staining or extensive sample preparation.

2025
Article Tier 2

Compact holographic microscope for imaging flowing microplastics

Researchers developed a compact holographic microscope capable of imaging flowing microplastics in aquatic environments, providing a fast, quantitative method for real-time characterization of plastic particle size and shape distributions.

2021 7 citations
Article Tier 2

Toward an All-Optical Fingerprint of Synthetic and Natural Microplastic Fibers by Polarization-Sensitive Holographic Microscopy

Researchers developed a polarization-sensitive digital holographic microscopy method that can generate unique all-optical fingerprints to distinguish synthetic microplastic fibers from natural fibers in water without destroying the sample.

2022 ACS Photonics 33 citations
Article Tier 2

Digital holographic approaches to the detection and characterization of microplastics in water environments

This review examines advances in using digital holography as a high-throughput tool for detecting and characterizing microplastics in water. Researchers discuss both the hardware and software developments, including the growing role of artificial intelligence for classification tasks. The study highlights the emergence of field-portable holographic flow cytometers as a promising technology for real-time water monitoring of microplastic contamination.

2023 Applied Optics 20 citations
Article Tier 2

In-situ and real-time nano/microplastic coatings and dynamics in water using nano-DIHM: A novel capability for the plastic life cycle research

Researchers used a novel nano-digital inline holographic microscope to study nano- and microplastic particles in real time in water, revealing distinct coating patterns on particle surfaces and dynamic aggregation behaviors that standard offline methods miss.

2023 Water Research 19 citations
Article Tier 2

Digital holographic microplastics detection and characterization in heterogeneous samples via deep learning

Researchers used digital holographic microscopy combined with deep learning to detect and characterize microplastic particles in heterogeneous samples containing algae, microorganisms, and other natural particles. This automated approach could improve the speed and accuracy of environmental microplastic monitoring.

2021 Twelfth International Conference on Information Optics and Photonics 7 citations
Article Tier 2

In-situ and real-time detection of micro/nanoplastics in water: Combining laboratory experiments and modelling studies for plastic life cycle analysis

Researchers developed a nano-digital inline holographic microscope for real-time in-situ detection of micro- and nanoplastics in freshwater, combining laboratory experiments with modeling to analyze physicochemical characteristics and dynamic behaviors of MPs relevant to plastic life cycle analysis, addressing the 85% research gap between freshwater and marine MP studies.

2024