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Key Documents

89904

Sigma-Aldrich

Micro particles based on polystyrene

size: 1 μm

Sinónimos:

Latex beads from PS

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About This Item

MDL number:
MFCD00243243
UNSPSC Code:
12352108
NACRES:
NA.32

form

aqueous suspension

crosslinking

0 % cross-linked

concentration

10% (solids)

particle size

1 μm std dev <0.1 μm, coeff var <5%

density

1.05 g/cm3

storage temp.

2-8°C

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General description

Micro Particles or Latex Beads, commonly known as polystyrene microparticles, are negatively charged colloidal particles. The microparticles are produced through a polymerization reaction of styrene under controlled conditions. The conducive environment of the reaction induces spontaneous coalescent bead formation. Micro Particles or Latex beads are supplied in aqueous solutions composed of polymer particles with water. Polystyrene′s refractive index at 589 nm is 1.5905 and 1.602 at 486 nm.

Application

Micro Particles or Latex Beads is used for a wide variety of applications like:
  • Electron Microscopy.
  • Cell Counter Calibration.
  • Immunodiagnostics, especially for latex agglutination tests, and
  • Phagocytosis Research.

Analysis Note

For every lot exact values of particle size and standard deviation are determined with an accuracy of 0.01 μm using a Coulter Multisizer.

Other Notes

Template for preparing hollow spheres by self-organized deposition of nanoparticles. The PS core dissolves in THF

related product

Referencia del producto
Descripción
Precios

08168

Timestrip Plus™ 8 °C

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Caruso et al.
Science (New York, N.Y.), 282(5391), 1111-1114 (1998-11-06)
Hollow silica and silica-polymer spheres with diameters between 720 and 1000 nanometers were fabricated by consecutively assembling silica nanoparticles and polymer onto colloids and subsequently removing the templated colloid either by calcination or decomposition upon exposure to solvents. Scanning and
Diana El Khoury et al.
Beilstein journal of nanotechnology, 9, 2999-3012 (2018-12-29)
The unusual properties of nanocomposites are commonly explained by the structure of their interphase. Therefore, these nanoscale interphase regions need to be precisely characterized; however, the existing high resolution experimental methods have not been reliably adapted to this purpose. Electrostatic

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