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 Underwater Digital Holography of Plankton with Advanced Monitoring Capabilities for Bioindication in Situ
ClearSpectroscopic aspects of underwater digital holography of plankton
Researchers demonstrated that underwater digital holography — a technique that captures 3D images of plankton in real time without disturbing them — can monitor the rhythms of plankton populations and detect early signs of ecosystem stress, similar to how spectroscopy reveals the structure of atoms. Shifts in the natural timing patterns of plankton communities can serve as early warning signals of pollution or ecological disruption.
Phototactic Behavioral Responses of Mesozooplankton in the Barents Sea as an Indicator of Anthropogenic Impact
Researchers deployed a submersible digital holographic camera in the Barents Sea to measure mesozooplankton phototactic responses as bioindicators of water quality, finding that natural environmental variability did not mask behavioral responses but anthropogenic salt disturbances produced detectable signals.
Monitoring Bioindication of Plankton through the Analysis of the Fourier Spectra of the Underwater Digital Holographic Sensor Data
Researchers developed a method to monitor plankton biodiversity using Fourier spectral analysis of plankton images, demonstrating that spectral features of plankton assemblages correlate with species composition and ecosystem health indicators. The approach offers a computationally efficient route to continuous bioindication in marine and freshwater monitoring programs.
Geometric-Optical Model of Digital Holographic Particle Recording System and Features of Its Application
Not relevant to microplastics — this paper describes a calibrated geometric-optical model for a submersible digital holographic camera used to study plankton in the ocean, improving the accuracy of particle size and position measurements.
A Review of Holography in the Aquatic Sciences: In situ Characterization of Particles, Plankton, and Small Scale Biophysical Interactions
This review examines the use of holography as an in situ tool for characterizing particle and plankton populations in aquatic research. It summarizes how holographic imaging can quantify particle fields and biophysical interactions without disturbing natural distributions in marine and freshwater environments.
An Ultracompact Underwater Pulsed Digital Holographic Camera With Rapid Particle Image Extraction Suite
Researchers designed and successfully deployed an ultracompact 3.5-kilogram underwater digital holographic camera in the North Sea, demonstrating real-time in-situ imaging of particles including potential microplastics in open ocean conditions at a fraction of the size and weight of existing underwater holographic systems.
Combining multi-marker metabarcoding and digital holography to describe eukaryotic plankton across the Newfoundland Shelf
Researchers combined multi-marker metabarcoding and digital holography to characterize eukaryotic plankton diversity across the Newfoundland Shelf, demonstrating how integrating genomic and imaging tools improves high-frequency marine biodiversity monitoring.
Computational polarized holography for automatic monitoring of microplastics in scattering aquatic environments
Researchers developed an integrated imaging system based on computational polarized holography for automatic monitoring of microplastics in aquatic environments. The system enables accurate 3D tracking of dynamic microplastic particles, and a hybrid de-scattering algorithm substantially improves image quality even in turbid water conditions. An unsupervised clustering method was also developed to identify and classify different microplastics based on their multimodal features without manual annotation.
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.
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.
A fractal analysis of the holographic diffraction patterns for detecting microplastics among diatoms
Researchers developed a fractal analysis approach applied to holographic diffraction patterns to distinguish microplastics from diatoms in water samples, enabling automated identification of plastic particles in complex biological matrices.
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.
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.
Complete holography‐based system for the identification of microparticles in water samples
Researchers developed a comprehensive holography-based system for identifying and classifying microparticles — including microplastics — in water samples using microscopic holographic projections, designed for researchers without specialist holography expertise. The system is deployable as part of an autonomous sailboat robot for large-scale environmental monitoring of diverse microplastic types in water bodies.
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.
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.
Simultaneous Measurements of Microplastic 3D Morphology and Naphthalene Adsorption Based on Digital Holographic Microscopy
Researchers used digital holographic microscopy to simultaneously measure microplastic particle morphology and naphthalene (a polycyclic aromatic hydrocarbon) adsorption in real time, providing a new tool for studying plastic-pollutant interactions in aquatic environments without disturbing the sample.
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.
Early Detection of Contamination with Microplastics by Changing the Phototaxis of Freshwater Mesozooplankton to Paired Photostimulation
Researchers used changes in phototaxis behavior of aquatic microorganisms as an early detection indicator for microplastic contamination, demonstrating that behavioral assays can provide sensitive, low-cost monitoring of plastic pollution in water.
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.
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.
Plankton classification with high-throughput submersible holographic microscopy and transfer learning
Researchers used underwater holographic microscopes and transfer learning — an AI technique that applies knowledge from one task to another — to automatically classify diverse plankton species from images, including rare forms. The system shows promise for large-scale, automated ocean monitoring without needing constant human analysis.
Remote 3D Imaging and Classification of Pelagic Microorganisms with A Short‐Range Multispectral Confocal LiDAR
Researchers developed a new underwater laser-based imaging system capable of identifying and classifying tiny marine organisms in three dimensions from a distance. The device uses multiple light wavelengths to capture detailed images of plankton as small as fractions of a millimeter without requiring physical sample collection. This technology could enable continuous, non-invasive monitoring of plankton communities, which are critical indicators of ocean health.
Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
Researchers used holography and optics to reveal hidden nanoscale dynamics in natural photonic structures — biological surfaces that manipulate light through intricate nano-architectures. These optical techniques could be adapted for characterizing the fine structure of microplastic particles.