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 available protocols for sterilizing polystyrene microparticles. From the remaining methods for sterilization, it should be possible to 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.
43302
Micro particles based on polystyrene
size: 100 nm
Synonym(s):
Latex beads from PS
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5 ML
$416.00
10 ML
$740.00
About This Item
Recommended Products
Quality Level
form
aqueous suspension
concentration
10% (solids)
particle size
100 nm std dev ≤0.01 μm
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.
Storage Class
10 - Combustible liquids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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Are the microparticles in a suspension sterile? Or is it possible to sterilize the suspension?
1 answer-
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What kind of surface modification are performed on these particles?
1 answer-
These particles possess a negative charge and have residual sulfate end groups as a result of the manufacturing process. This is not considered to be a functional group as would a carboxyl-, aldehyde-, or amine-functionalized product.
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Tween 20과 같은 분산제가 함께 첨가되었는지 문의드립니다.
1 answer-
Micro Particles or Latex beads are supplied in aqueous solutions composed of polymer particles with water. No surfactant has been added.
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