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89904

Sigma-Aldrich

Micro particles based on polystyrene

size: 1 μm

Synonyme(s) :

Latex beads from PS

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5 ML
299.00 CHF
10 ML
562.00 CHF

299.00 CHF

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Devis pour commande en gros
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Sélectionner une taille de conditionnement

Changer de vue
5 ML
299.00 CHF
10 ML
562.00 CHF

About This Item

Numéro MDL:
MFCD00243243
Code UNSPSC :
12352108
Nomenclature NACRES :
NA.32

299.00 CHF

Check Cart for Availability
Devis pour commande en gros

Niveau de qualité

100

Forme

aqueous suspension

Réticulation

0 % cross-linked

Concentration

10% (solids)

Taille des particules

1 μm std dev <0.1 μm, coeff var <5%

Densité

1.05 g/cm3

Température de stockage

2-8°C

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Catégories apparentées

Description générale

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.

Remarque sur l'analyse

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

Autres remarques

Template for preparing hollow spheres by self-organized deposition of nanoparticles. The PS core dissolves in THF[1]

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

08168

Timestrip Plus™ 8 °C

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
BCCM8584
BCCM8583
BCCM7563
BCCM6713
BCCM5428

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Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

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
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

Questions

1–2 of 2 Questions  

  1. Are the Microparticles based on polystyrene in a suspension sterile? Or is it possible to sterilize the microparticles?

    1 answer

    1. The polystyrene microparticles offered for sale are not sterile.

      Although autoclaving is a common method of sterilization, polystyrene microparticles are not autoclavable. Filter sterilization is also not a practical method. There are no protocols available for sterilizing polystyrene microparticles. From the remaining methods for sterilization, it should be possible to either sterilize in 70% ethanol for 30 minutes and then rinse away the ethanol with sterile water. For small batches, UV radiation would be another option.

      Helpful?

  2. What is the composition of the "Aqueous Suspension." I want to use these in an exposure experiment, but must control for whatever the suspension is. Is it possible to get the exact details of its makup.

    1 answer

    1. The composition is water and polystyrene.

      Helpful?

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