Papers

61,005 results
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Article Tier 2

The use of chitosan for water purification from microplastics

Researchers investigated chitosan as a sorbent for removing microplastics from water, analyzing its physicochemical properties and proposing an optimized purification method based on chitosan's sorption characteristics.

2025 Open MIND
Article Tier 2

Economical and Novel Microplastic Detection Using a Arduino-Based Turbidity Sensor: A Comprehensive Investigation

Researchers developed a low-cost Arduino-based turbidity sensor system for microplastic detection as an accessible alternative to expensive FTIR and Raman spectroscopy methods. The sensor demonstrated the ability to detect microplastic-induced changes in water clarity, offering a practical monitoring tool for low-resource settings and smaller waterways that are typically undersampled.

2025
Article Tier 2

Innovative prototype for the mitigation of water pollution from microplastics to safeguard the environment and health

Researchers developed an innovative prototype device for removing microplastics from water through a combination of filtration and electrocoagulation, demonstrating high MP removal efficiency from both synthetic and real water samples in controlled trials.

2025 The Science of The Total Environment
Article Tier 2

A Novel Application of Filtration for the Collection of Microplastics in Waterways

Researchers developed a novel filtration system for collecting microplastics from waterways, demonstrating its effectiveness as a scalable and practical tool for environmental monitoring and plastic pollution assessment.

2024 Research Square (Research Square)
Article Tier 2

Utilization of chitosan as a natural coagulant for polyethylene microplastic removal

Scientists tested chitosan, a natural material derived from shellfish, as an eco-friendly way to remove polyethylene microplastics from water. Under the best conditions (pH 6.0 with 100 mg/L of chitosan), the treatment removed 81.5% of microplastics, offering a promising and environmentally safe approach to cleaning microplastic-contaminated water.

2025 Sustainable Chemistry for the Environment 12 citations
Article Tier 2

Microfluidic Size Exclusion Chromatography for Sustainable Nanoplastic Detection

Researchers developed a miniaturized filtration system using a mix of chitosan and agarose beads to capture and identify nanoplastics — plastic particles smaller than one micrometer — from water samples. The system works with multiple analysis tools including Raman spectroscopy and electron microscopy, offering a cost-effective and sustainable approach to detecting nanoplastics in the environment.

2024
Article Tier 2

Harnessing the power of amphoterically modified Chitosan coagulants for enhanced Polyester microplastic fibre removal from water

Amphoterically modified chitosan was used as a coagulant aid to capture microplastics from water, leveraging the biopolymer's charge-switching ability to bind particles across a range of pH conditions. Chitosan-based capture materials are attractive because chitosan is biodegradable and derived from renewable sources.

2025 Journal of Environmental Management 1 citations
Article Tier 2

Interaction of chitosan with nanoplastic in water: The effect of environmental conditions, particle properties, and potential for in situ remediation

Researchers tested chitosan — a natural polymer derived from shellfish — as a tool to aggregate and remove nanoplastic particles from water, finding it caused clumping at low doses but that high pH, dissolved organic matter, and surface chemistry of the plastics all affected its performance. The results suggest chitosan-based treatment has real potential for water remediation but requires careful tuning of environmental conditions.

2023 The Science of The Total Environment 24 citations
Article Tier 2

Revivable self-assembled supramolecular biomass fibrous framework for efficient microplastic removal

Scientists developed a sustainable material made from chitin and cellulose, two natural compounds, that can efficiently remove multiple types of microplastics from water. The material can be regenerated and reused multiple times without losing effectiveness, making it a practical tool for water cleanup. This type of affordable, eco-friendly filtration technology could help reduce human exposure to microplastics in drinking water.

2024 Science Advances 65 citations
Article Tier 2

Optimisation of Chitosan as A Natural Flocculant for Microplastic Remediation

Laboratory tests found that chitosan — a natural, biodegradable material derived from shellfish — can remove 68.3% of microplastics from water using a coagulation-flocculation process, with an optimal concentration of 30 ppm. Higher chitosan doses increased organic matter in the water (COD and BOD), suggesting a trade-off between microplastic removal efficiency and water quality parameters. Chitosan offers a promising eco-friendly alternative to synthetic chemicals for treating microplastic-contaminated water.

2023 Journal of Emerging Science and Engineering 6 citations
Article Tier 2

Electrochemically microplastic detection using chitosan-magnesium oxide nanosheet

Scientists developed an electrochemical sensor using chitosan and magnesium oxide nanosheets to detect hexamethylenetetramine (HMT), a chemical found in microplastics, in water samples. The sensor showed high sensitivity and selectivity, successfully detecting HMT in real-world lake and drinking water samples. This kind of affordable, portable detection tool could help monitor microplastic-related chemical contamination in water supplies.

2024 Environmental Research 26 citations
Article Tier 2

A Chitosan Nanofiber Sponge for Oyster-Inspired Filtration of Microplastics

An ultralight chitosan nanofiber sponge was developed as a filtration material for removing microplastics from water, inspired by oyster filtration biology, and demonstrated high removal efficiency for polystyrene microplastics in lab tests while being biodegradable and made from renewable chitosan feedstock.

2021 ACS Applied Polymer Materials 66 citations
Article Tier 2

Synergistic removal of microplastic fibres: Integrating Chitosan coagulation in hybrid water pre-treatment systems

Microplastic fibers are the most common type of microplastic found entering water treatment plants, yet their elongated shape makes them especially hard to remove with conventional filters. This study investigated using chitosan — a natural, biodegradable material derived from crustacean shells — as a "green" coagulant to clump fibers together so they can be more easily removed, and also developed chemically modified versions of chitosan that work across a wider range of water conditions. The results showed that combining chitosan-based coagulation with microbubble aeration creates a synergistic pretreatment system that significantly improves microplastic fiber removal while avoiding the residual metal ions left by conventional chemical coagulants.

2026 Australasian Journal of Paramedicine
Article Tier 2

Synergistic removal of microplastic fibres using hybrid pre-treatment: evaluation of Chitosan as a green coagulant

Researchers evaluated the capacity of existing water treatment pre-treatment methods to remove microplastic fibers and investigated chitosan — a low-molecular-weight, 75-85% deacetylated green coagulant — as an alternative to conventional chemical coagulants. The study assessed a hybrid pre-treatment approach, finding synergistic microplastic fiber removal efficiency when chitosan was combined with existing processes.

2024 Water e-Journal
Article Tier 2

Chitosan: A Novel Approach and Sustainable Way to Remove Contaminants and Treat Wastewater

This review examines how chitosan, a natural material derived from crustacean shells, can be used to remove pollutants including microplastics, heavy metals, and pesticides from wastewater. Chitosan's chemical structure allows it to bind and capture a wide range of contaminants, and it can be combined with other materials to improve its effectiveness. Developing affordable, biodegradable water treatment materials like chitosan could help reduce human exposure to microplastics in drinking water.

2025 Starch - Stärke 7 citations
Article Tier 2

Integrated Chitosan-based coagulation and microbubble pre-treatment for improved microplastic fibre removal from water

Researchers developed a combined chitosan-based coagulation and microbubble pre-treatment system for removing microplastic fibres from water, finding that this approach overcame the limitations of conventional inorganic coagulants and improved removal efficiency for the morphologically challenging fibre fraction.

2025 The Science of The Total Environment
Article Tier 2

A Cheap and Portable Solution for The Removal of Microplastics from Natural Waters

This paper reviews current and emerging strategies for removing microplastics from natural waters, including physical filtration, coagulation, magnetic separation, and biological approaches, evaluating their feasibility and limitations.

2024 Highlights in Science Engineering and Technology 1 citations
Article Tier 2

Formulation of a Chitosan-Laccase-Cutinase Composite for Bio-Coagulation and Enzymatic Degradation of Microplastics

Researchers developed a sustainable bio-coagulant using chitosan combined with laccase and cutinase enzymes to capture and break down microplastics in water. The chitosan-enzyme composite demonstrated effective coagulation and enzymatic degradation of microplastic particles, offering a more environmentally friendly alternative to conventional removal methods.

2026 International Journal of Research and Review
Article Tier 2

Coagulative removal of polystyrene microplastics from aqueous matrices using FeCl3-chitosan system: Experimental and artificial neural network modeling

Scientists developed a water treatment method combining iron chloride and chitosan (a natural substance from shellfish) that removed up to 99.8% of polystyrene microplastics from water. The method worked effectively even on real wastewater from treatment plants, not just laboratory-prepared samples. This is a promising and practical approach for adding microplastic removal as a step in existing water treatment systems, which could help reduce human exposure through drinking water.

2024 Journal of Hazardous Materials 45 citations
Article Tier 2

Efficient removal of polystyrene microplastics from seawater using a chitosan-activated carbon nanocomposite: Preparation of the adsorbent and optimisation of removal methods

Scientists created a new material that can remove up to 99% of tiny plastic particles (called microplastics) from seawater by mixing two natural substances - chitosan (from shellfish) and activated carbon. This filtering material can be cleaned and reused at least five times, making it a promising tool for removing plastic pollution from our oceans. Since microplastics can enter our food chain through seafood and sea salt, better ways to clean them from seawater could help protect human health.

2026 Next Materials
Article Tier 2

Cost-Effective and Wireless Portable Device for Rapid and Sensitive Quantification of Micro/Nanoplastics

Researchers developed a wireless portable device for rapid quantification of micro- and nanoplastics in water samples, offering a field-deployable alternative to laboratory-based analysis for environmental monitoring.

2024 4 citations
Article Tier 2

Removal of microplastics from water by coagulation of cationic-modified starch: An environmentally friendly solution

Researchers developed a cationic-modified starch bio-coagulant as an eco-friendly method for removing microplastics from water, achieving an average removal rate of over 65% for polystyrene particles. The starch-based treatment was effective across a wide range of water pH levels and performed well in natural water samples from China's Yangtze River Delta. The study offers a sustainable and cost-effective approach for addressing microplastic contamination in water systems.

2023 The Science of The Total Environment 31 citations
Article Tier 2

Design and Development of an Advanced Sensor Prototype for the Detection of Microplastics

Researchers designed and developed an advanced sensor prototype for detecting microplastics in water, combining spectroscopic and signal processing technologies into a portable device. The prototype demonstrated accurate microplastic identification across multiple polymer types in field conditions.

2024 Preprints.org
Article Tier 2

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.

2023 2 citations