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Papers
61,005 resultsShowing papers similar to In Situ Determination of Chlorella Concentration Using Single Entity Electrochemistry
ClearElectrochemical Detection of Microplastics in Water Using Ultramicroelectrodes
Researchers developed a new electrochemical method for detecting microplastics in water using ultramicroelectrodes. The technique works by monitoring changes in electrical current when microplastic particles collide with and adsorb onto the electrode surface, and the size distributions obtained closely matched independent measurements, demonstrating its potential as a practical detection tool.
Electrochemical Detection of Microplastics in Aqueous Media
Researchers demonstrated that microplastics in water can be detected electrochemically by counting oxygen reduction events when plastic particles collide with a carbon microwire electrode, finding a linear relationship between particle concentration and collision frequency.
Microplastics detection by impact electrochemistry
This paper explores impact electrochemistry—a technique where individual particles colliding with an electrode generate detectable electrical pulses—as a method for detecting and characterizing microplastics in water. The approach offers the potential for rapid, single-particle detection without the need for complex sample preparation or optical instruments, which could make microplastic monitoring cheaper and more accessible. Developing faster and simpler detection methods is important for scaling up environmental monitoring programs.
In situ Detection of Microplastics: Single Microparticle‐electrode Impacts
This study developed an electrochemical method using particle-impact techniques to detect and size individual polyethylene microparticles in water solution. The novel analytical approach enables detection of microplastics in aqueous samples in situ, without the need for filtration or sample processing that could introduce contamination.
Polymer bead size revealed via neural network analysis of single-entity electrochemical data
A neural network was trained to extract microplastic particle size from electrochemical current-spike data recorded when individual polymer beads collide with a microelectrode — a method that avoids the need for optical microscopy. Accurate near-real-time sizing of microplastics in solution is an important analytical advance for water quality monitoring, where detecting and characterizing small plastic particles quickly and affordably remains a major technical challenge.
A platform for microplastic assessment in aquatic environments based on the protein corona-induced aggregation effect
Researchers designed a photoelectrochemical sensor that detects polystyrene microplastics in water based on protein corona-induced aggregation effects. The sensor achieved a detection limit of 0.06 micrograms per milliliter with high sensitivity and reproducibility across real water samples. The study presents a practical platform for real-time, in-situ monitoring of microplastic pollution in aquatic environments without requiring large-scale laboratory instruments.
Recent advances in the detection of microplastics in the aqueous environment by electrochemical sensors: A review
This review surveys recent advances in using electrochemical sensors to detect microplastics in water environments. Researchers evaluated sensors made from carbon materials, metals, biomass materials, and microfluidic chips, comparing their detection capabilities and practical advantages like low cost and high sensitivity. The study highlights electrochemical sensing as a promising approach for real-time, on-site monitoring of microplastic contamination in waterways.
An Electrochemical Biosensing Approach for Detection of Microplastic Beads
Researchers developed an electrochemical enzyme-based biosensor to detect microplastic beads across a range of sizes in water, providing a simpler and lower-cost detection approach than conventional spectroscopic methods for environmental and public health monitoring.
Current perspectives, challenges, and future directions in the electrochemical detection of microplastics
This review examines the emerging use of electrochemical sensors for detecting microplastics in the environment. Researchers found that while electrochemical methods have been widely explored for microplastic removal, their potential as low-cost detection tools remains largely untapped. The study highlights recent advances in nanoimpact techniques and electrode modifications that could make environmental microplastic monitoring more practical and affordable.
Design, fabrication, and application of electrochemical sensors for microplastic detection: a state-of-the-art review and future perspectives
This review covers recent advances in electrochemical sensors for detecting microplastics in environmental samples, which offer advantages in sensitivity and portability over conventional laboratory methods. Researchers highlight strategies using nanomaterials, molecular imprinting, and surface-enhanced techniques to improve detection capabilities. The study suggests that electrochemical sensors represent a promising path toward affordable, rapid, on-site monitoring of microplastic pollution.
Rapid electrochemical detection of polystyrene microplastics in aquatic environments using a gadolinium-alginate hydrogel-modified electrode
Researchers developed a rapid electrochemical sensor for detecting polystyrene microplastics in water using a glassy carbon electrode modified with gadolinium-alginate hydrogel beads. The sensor enabled quick and reliable detection of trace-level microplastic contamination in aquatic environments, offering a portable and practical alternative to conventional laboratory-based identification methods.
Emerging electrochemical techniques for identifying and removing micro/nanoplastics in urban waters
This review examines emerging electrochemical techniques for detecting and removing micro- and nanoplastics from urban waters, highlighting their advantages over conventional methods for enabling real-time monitoring and efficient degradation.
Microalgae–microplastics interactions at environmentally relevant concentrations: Implications toward ecology, bioeconomy, and UN SDGs
This study investigated how microalgae interact with microplastics at environmentally relevant concentrations, examining growth inhibition, aggregation, and photosynthetic effects, with implications for aquatic ecosystem function and the feasibility of microalgae-based bioremediation.
Nanomaterial-based electrochemical chemo(bio)sensors for the detection of nanoplastic residues: trends and future prospects
This study reviews how nanomaterial-based electrochemical sensors can be used to detect tiny nanoplastic residues in water. Researchers found that these sensors offer a promising, practical approach for monitoring nanoplastic contamination in aquatic ecosystems. The findings suggest that advancing these detection tools is important for implementing effective water quality control measures.
Discrimination of Microplastics and Phytoplankton Using Impedance Cytometry
Researchers demonstrated that impedance cytometry can discriminate between microplastics and phytoplankton in ocean water samples. The study suggests this technique could enable high-throughput, deployable monitoring of both plankton communities and microplastic pollution levels, addressing a key gap in current marine monitoring capabilities.
Simultaneous Determination of Small Microplastics' Size, Type, Charge, Number and Mass Concentration by Machine-Learning Driven Single-Particle Sensing
Scientists developed a new method that can identify and measure tiny plastic particles (microplastics) in the environment much more precisely than before, determining their size, type, and amount all at once. This breakthrough could help us better understand how these plastic pollutants move through our environment and potentially affect human health. The technology represents a major step forward in tracking microplastic contamination, which is increasingly found in our food, water, and air.
Study the impact of microplastic pollutants on marine algae by novel dielectric spectroscopy method
Researchers developed a PCB coaxial probe-based dielectric spectroscopy method to assess the impact of microplastic pollutants on marine algae at varying concentrations. By measuring changes in the dielectric constant of algae exposed to microplastics, the study demonstrated that this non-destructive technique can rapidly detect and quantify the effects of microplastics on marine algal physiology.
Droplet-based Opto-microfluidic Device for Microplastic Sensing in Aqueous Solutions
Researchers developed a microfluidic device using light to detect plastic microspheres in water droplets, offering a new tool for identifying microplastic contamination in aquatic environments.
Quantification of palladium-labelled nanoplastics algal uptake by single cell and single particle inductively coupled plasma mass spectrometry
Researchers developed a method using palladium-labelled nanoplastics and single-cell mass spectrometry to quantify nanoplastic uptake by algal cells. The study demonstrated that this technique can measure nanoplastic exposure on a per-cell basis, providing a valuable new tool for understanding how nanoplastics interact with organisms at the base of aquatic food webs.
Microplastic interactions with freshwater microalgae: Hetero-aggregation and changes in plastic density appear strongly dependent on polymer type
Researchers studied interactions between microplastics and freshwater microalgae, finding that microplastics can physically attach to algal cells to form hetero-aggregates, altering both particle behavior and algal physiology.
Self-powered portable photoelectrochemical sensor based on dual-photoelectrode for microplastics detection
Researchers developed a portable, self-powered sensor that can detect polystyrene microplastics in water at concentrations as low as 1 part per billion. The sensor works without batteries by using light energy and maintains over 97% accuracy even when other pollutants are present. Better detection tools like this could help monitor microplastic contamination in drinking water and food systems, which is a key step toward understanding and reducing human exposure.
A novel protein corona-induced aggregation-ECL strategy based on poly-l-cys/Cu NCs for detecting microplastics in water
Researchers developed a novel electrochemiluminescence sensor using poly-L-cysteine and copper nanoclusters for detecting microplastics in water. The sensor exploits the protein corona that forms around microplastic particles to trigger a measurable signal change. The study demonstrates a sensitive and practical new approach for monitoring microplastic contamination in aquatic environments.
Miniature Electrochemical Sensing Accelerates Detection of Toxic Responses Induced by Nanoplastics
This perspective article discusses how miniature electrochemical sensors can accelerate the detection of toxic responses caused by nanoplastics in living organisms. The authors highlight that conventional methods struggle to monitor the chronic, low-level toxicity that nanoplastics cause over time. They advocate for multiplexed electrochemical techniques that can provide real-time, sensitive monitoring of how organisms respond to long-term nanoplastic exposure.
Emerging electrochemical tools for microplastics remediation and sensing
This review examines emerging electrochemical approaches for both detecting and remediating microplastics in the environment, highlighting their advantages over traditional methods and identifying key challenges and opportunities for developing practical electrochemical tools to address microplastic pollution.