Yes, antibodies can be adsorbed to the surface of these 20 µm polystyrene particles. However, this process occurs passively, in a nonspecific manner. For specific coupling, COOH-functionalized particle types are recommended.
74491
Micro particles based on polystyrene
analytical standard, size: 20 μm
Synonym(s):
Polystyrene latex particles (20 μm), Polystyrene microbeads (20 μm), Polystyrene microspheres (20 μm), Polystyrene microparticles (20 μm), Latex beads from PS
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grade
analytical standard
form
aqueous suspension, particles
crosslinking
2 % cross-linked
concentration
10% (solids)
Quality Level
technique(s)
diffraction/scattering: suitable
particle size
20 μm std dev <0.3 μm, coeff var <2%
density
1.05 g/cm3
application(s)
environmental
environmental
food and beverages
pharmaceutical
format
neat
storage temp.
2-8°C
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This Item | |||
|---|---|---|---|
| particle size 20 μm std dev <0.3 μm, coeff var <2% | particle size 15 μm std dev <0.2 μm, coeff var <2% | particle size 30 μm std dev <0.4 μm, coeff var <1% | particle size 25 μm std dev <0.4 μm, coeff var <2% |
| format neat | format neat | format neat | format neat |
| grade analytical standard | grade analytical standard | grade analytical standard | grade analytical standard |
| application(s) glass & ceramic | application(s) glass & ceramic | application(s) glass & ceramic | application(s) glass & ceramic |
| form aqueous suspension | form aqueous suspension, particles | form aqueous suspension, particles | form aqueous suspension, particles |
| crosslinking 2 % cross-linked | crosslinking 2 % cross-linked | crosslinking 2 % cross-linked | crosslinking 2 % cross-linked |
General description
This polystyrene-based microparticle (size: 20 μm) size standard is ideal for profiling particle size distribution (PSD) of test samples.
Application
Features and Benefits
- suitable for routine instrument calibration checks, testing and corrections
- available in 5 and 10 mL pack sizes as neat samples
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
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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I wanted to couple antibodies on to Micro particles based on polystyrene (Cat No:74491) 20uM particles by Physical adsorption Pl let me know can this particles be used for passive adsorption of antibody on these PS particles
1 answer-
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Dear Mr., Ms, I would like to know what is the best buffer to dilute homogeneously those PS beads (ref. 74491). Is it better to use DI water ? Phosphate Buffer Solution ? Is it necessary to add surfactant and if yes at which concentration ? Thank you.
1 answer-
Microspheres are synthesized in water and should be stored in water. Deionized water is the best suspending medium, as high concentrations of ions may result in irreversible aggregation.
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1. What is the molecular weight of this product? 2. How many particles are there per mL?
1 answer-
This product is an aqueous suspension containing 10% solids in the form of polystyrene microparticles. The molecular weight of the starting material has not been determined. The particle count is not tested or reported on a lot-to-lot basis. However, historical information reveals an estimate of 2.0 - 2.4 x 10E7 particles/mL. This information is theoretical, based on concentration and particle size.
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We have this 5 mL of latex beads. I curious about how many beads in the bottle. It is important for our study. Thank you. Regards
1 answer-
The number of beads per bottle is not determined.
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