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39689

Sigma-Aldrich

Micro particles based on polystyrene, magnetic

5 μm particle size, std dev <0.5 μm

Synonym(s):

Latex beads from PS, magnetic

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About This Item

UNSPSC Code:
12352207
NACRES:
NA.25

form

aqueous solution

composition

iron oxide, ≥20%

concentration

5% solids

particle size

5 μm std dev <0.5 μm

storage temp.

2-8°C

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General description

Superparamagnetic iron oxide nanoparticles implanted in polymer microspheres are used in magnetic resonance imaging contrast enhancement, immunoassay, tissue repair, hyperthermia, detoxification of biological fluids, and drug delivery. Polystyrene microspheres (magnetic beads) are also widely used in cell separation and labeling.
Magnetic polystyrene particles

Application

Micro particles based on polystyrene, magnetic has been used in the preparation of poly(ethylene oxide) (PEO) solution and particles to study the viscoelastic focusing performance of the zigzag microchannel using both nonmagnetic particles and magnetic particles.

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Preparation of magnetic nanoparticles embedded in polystyrene microspheres
Hai NH, et al.
Journal of Physics. Conference Series, 187, 012009-012009 (2009)
Dan Yuan et al.
Electrophoresis, 42(21-22), 2230-2237 (2021-08-17)
Microfluidic particle focusing has been a vital prerequisite step in sample preparation for downstream particle separation, counting, detection, or analysis, and has attracted broad applications in biomedical and chemical areas. Besides all the active and passive focusing methods in Newtonian

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