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Papers
61,005 resultsShowing papers similar to Electrochemically generated ion depletion zones for continuous separations in microelectrochemical devices
ClearFiltering and continuously separating microplastics from water using electric field gradients formed electrochemically in the absence of buffer
Scientists developed a microfluidic system that uses electric fields to continuously separate particles — including microplastics — from water flow without chemical additives. Electric field-based separation could offer a low-energy, chemical-free approach to removing microplastics from water streams.
Focusing, sorting, and separating microplastics by serial faradaic ion concentration polarization
Researchers demonstrated a microfluidic technique that uses electric fields to continuously separate two types of microplastic particles in flowing water. This lab-on-chip approach could be developed into tools for monitoring or removing specific microplastic types from water treatment systems.
A microfluidic approach for label-free identification of small-sized microplastics in seawater
Researchers developed a microfluidic approach for label-free identification of small microplastics in seawater, using impedance-based detection to distinguish different polymer types without chemical labeling, enabling faster and more practical environmental monitoring.
Electrochemical 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.
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.
Simple microfluidic device for simultaneous extraction and detection of microplastics in water using DC electrical signal
A simple microfluidic device using a DC electric field between two microwires in a straight channel was developed to simultaneously extract and detect microplastics from water via electrophoretic accumulation. The compact design offers a rapid, low-cost approach to microplastic monitoring.
Preconcentration of nanoplastics using micro-electromembrane extraction across free liquid membranes
Researchers developed a miniaturized electrical extraction technique that concentrates nanoplastics from liquid samples across a thin oil membrane using an electric field, then analyzes them using capillary electrophoresis. The method achieved over 20-fold concentration of nanoplastics in just 5 minutes and successfully removed interfering compounds from tea samples, offering a fast and sensitive tool for detecting nanoplastics in complex real-world liquids.
Continuous Ion Separations by Insertion Processes
Researchers investigated electrochemically active membranes that use ion insertion processes to continuously separate ions with tunable selectivity and permeance, offering a more energy-efficient alternative to thermal distillation for industrial chemical separations.
Multiplexed and Membraneless Redox‐Mediated Electrochemical Separations Through Bipolar Electrochemistry
This electrochemistry paper presents a multiplexed, membraneless redox-mediated electrochemical separation system; it involves advanced materials science but is not directly related to microplastic environmental health research.
Microfluidic Devices for Microplastics Separation and Identification
This thesis explored the application of low-cost microfluidic devices for separating and identifying microplastics in water and biological samples, developing novel analytical platforms with potential for scalable environmental monitoring and detection of plastic particles.
Microplastic separation and enrichment in microchannels under derivative electric field gradient by bipolar electrode reactions
Researchers used microfluidic channels equipped with bipolar electrodes to create electric field gradients that efficiently separate and concentrate microplastic particles from water at the microscale. Computer simulations optimized the channel design and voltage settings, offering a potential precision tool for removing microplastics from aquatic environments.
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.
Review: Impact of microfluidic cell and particle separation techniques on microplastic removal strategies
Researchers reviewed how microfluidic technology — the same miniaturized tools used in medical diagnostics to sort cells — could be adapted to separate and recover microplastics from water, offering a more precise and scalable alternative to conventional filtration methods used in wastewater treatment.
A new approach in separating microplastics from environmental samples based on their electrostatic behavior
Researchers developed a novel electrostatic separation method to isolate microplastics from environmental matrices based on differences in electrostatic behavior between plastic particles and natural materials. The technique offers a low-cost, chemical-free approach to microplastic extraction that could complement or replace existing density separation methods in some applications.
Detection of microplastics by microfluidic microwave sensing: An exploratory study
Researchers developed a compact microwave sensor on a microfluidic chip to detect microplastics in water samples. The system works by measuring how the presence of plastic particles changes the electrical properties of water. While the technology shows promise as a rapid and portable detection method, its current sensitivity needs improvement before it can detect the low microplastic concentrations typically found in natural freshwater.
DC Versus AC Electrokinetic-Driven Strategy Coupled with a Miniaturized Electrochemical-SERS Hydrogel Chip toward Dynamic Monitoring of Microplastics
DC versus AC electrokinetic strategies coupled with microfluidic devices were compared for separating and concentrating microplastics from water samples. The study advances electrokinetic methods as efficient tools for microplastic extraction and preconcentration ahead of analysis.
A microfluidic device for size-based microplastics and microalgae separation
Researchers designed a microfluidic device that separates microplastics and microalgae by size using controlled flow patterns. The device could be used to isolate microplastics from complex environmental water samples containing biological material, improving the accuracy of microplastic monitoring.
In-situ microplastic pre-treatment and sorting using an inertial microfluidic device
Researchers developed an inertial microfluidic device capable of pre-treating and sorting microplastics in situ, enabling separation of particles by size and shape prior to chemical analysis or recycling. The system demonstrates the viability of microfluidics for scalable microplastic processing, supporting both environmental monitoring and potential resource recovery applications.
Development of microfluidic device to monitor the contamination in drinking water using impedance spectroscopy
Researchers developed a microfluidic device using electrical impedance spectroscopy to detect and monitor microplastic particles in drinking water. The device aimed to provide a real-time, sensitive method for MP contamination monitoring at the point of use.
Surface nanodroplet-based nanoextraction from sub-milliliter volumes of dense suspensions
Scientists developed a rapid micro-extraction technique using tiny surface droplets that can concentrate trace chemicals from very small sample volumes. This analytical method could be adapted for detecting microplastic-associated chemicals in water and environmental samples.
Ion concentration polarization focusing at a millimeter-scale microbead junction: towards higher volumetric throughput
Despite its title referencing microbeads ("microbead junction" in the abstract refers to ion-exchange resin beads used in electrochemistry), this paper studies a technique for concentrating charged molecules in solution using electrical fields — not microplastic pollution. It examines electrokinetic focusing performance at different channel scales, and is not relevant to microplastics or human health.
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.
Application of a Micro Free-Flow Electrophoresis 3D Printed Lab-on-a-Chip for Micro-Nanoparticles Analysis
Researchers developed a 3D-printed microfluidic chip using free-flow electrophoresis to separate and analyze micro- and nanoparticles in a low-cost, reproducible device. This type of miniaturized lab technology could improve environmental monitoring of nanoplastics and other fine particles in water samples.
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.