Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Centrifugation01:05

Centrifugation

2.4K
Centrifugation is a separation technique based on differences in density or size. It is commonly used to separate solids from aqueous interferents. During centrifugation, the sample is placed in centrifugation tubes and spun at high angular velocity, which allows centrifugal force to act differentially on the different densities or masses of the components. After spinning, the supernatant liquid is decanted. Depending on the specific application, either the pellet or the supernatant is retained...
2.4K
Other Unique Bacteria01:18

Other Unique Bacteria

62
Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic...
62

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Optimisation of Electrokinetic Extraction System: Colourimetric Determination of Copper (II) in Sand Using Polymer Inclusion Membrane.

Electrophoresis·2026
Same author

Optical MRI imaging based on computer vision for extracting and analyzing morphological features of renal tumors.

SLAS technology·2024
Same author

Nanoplastic Sample Cleanup by Micro-Electromembrane Extraction across Free Liquid Membranes.

Analytical chemistry·2024
Same author

Bidimensional Dynamic Magnetic Levitation: Sequential Separation of Microplastics by Density and Size.

Analytical chemistry·2024
Same author

Sponge-nested polymer monoliths: Versatile materials for the solid-phase extraction of bisphenols.

Journal of separation science·2023
Same author

Electrokinetic Extraction of Doxorubicin from Biological Fluids by Polymer Inclusion Membrane Sampling Probe.

Analytical chemistry·2023

Related Experiment Video

Updated: Aug 18, 2025

Magnetic Levitation Coupled with Portable Imaging and Analysis for Disease Diagnostics
07:42

Magnetic Levitation Coupled with Portable Imaging and Analysis for Disease Diagnostics

Published on: February 19, 2017

8.9K

Magnetism-Assisted Density Gradient Separation of Microplastics.

Xinpeng Ren1, Michael C Breadmore1, Fernando Maya1

  • 1Australian Centre for Research on Separation Science, School of Natural Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania7001, Australia.

Analytical Chemistry
|December 5, 2022
PubMed
Summary
This summary is machine-generated.

A new Magnetism-assisted Density Gradient Separation (Mag-DG-Sep) method efficiently separates diverse microplastics from mixtures. This technique uses magnetic fields and a manganese chloride gradient for precise particle isolation, aiding environmental analysis.

More Related Videos

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris
05:31

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Published on: July 28, 2018

16.1K
Separation and Identification of Conventional Microplastics from Farmland Soils
14:10

Separation and Identification of Conventional Microplastics from Farmland Soils

Published on: March 21, 2025

1.8K

Related Experiment Videos

Last Updated: Aug 18, 2025

Magnetic Levitation Coupled with Portable Imaging and Analysis for Disease Diagnostics
07:42

Magnetic Levitation Coupled with Portable Imaging and Analysis for Disease Diagnostics

Published on: February 19, 2017

8.9K
Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris
05:31

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Published on: July 28, 2018

16.1K
Separation and Identification of Conventional Microplastics from Farmland Soils
14:10

Separation and Identification of Conventional Microplastics from Farmland Soils

Published on: March 21, 2025

1.8K

Area of Science:

  • Environmental Science
  • Analytical Chemistry
  • Materials Science

Background:

  • Microplastic contamination poses a significant environmental challenge.
  • Efficient separation of diverse microplastics from complex matrices is crucial for accurate analysis.
  • Existing separation methods often lack efficiency or specificity for various microplastic types.

Purpose of the Study:

  • To develop a versatile and efficient method for separating different types of microplastics from particle mixtures.
  • To enhance the resolution and accuracy of microplastic separation processes.
  • To demonstrate the application of the developed method in sample preparation for microplastic analysis.

Main Methods:

  • Magnetism-assisted Density Gradient Separation (Mag-DG-Sep) utilizing a bespoke separation cell, gradient pump, and neodymium magnets.
  • Employing a gradient of manganese chloride (MnCl2) to sequentially suspend and collect particles based on density.
  • Leveraging the paramagnetism of MnCl2 solution to focus ascending particles and improve separation resolution.

Main Results:

  • Successfully separated polyethylene (PE) particles of varying densities (0.98-1.35 g cm-3) in a single Mag-DG-Sep run.
  • Demonstrated efficient separation of microplastics when mixed with other materials like glass and soil.
  • Validated the method's broad applicability with a generic gradient (0.98-2.20 g cm-3) and enhanced resolution for close-density particles (1.025-1.08 g cm-3).

Conclusions:

  • Mag-DG-Sep provides an efficient and versatile approach for microplastic separation from complex mixtures.
  • The method facilitates sample preparation for subsequent microplastic identification techniques, such as FTIR spectroscopy.
  • This technique offers improved resolution and broad applicability for environmental microplastic research.