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Key Documents

Safety Information

79166

Sigma-Aldrich

Micro particles based on polystyrene

size: 3 μm

Synonym(s):

Latex beads from PS

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About This Item

MDL number:
MFCD00243243
UNSPSC Code:
41116105
NACRES:
NA.21

form

aqueous suspension

crosslinking

0 % cross-linked

concentration

10% (solids)

particle size

3 μm std dev <0.1 μm, coeff var <3%

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, andPhagocytosis 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 Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

79166-VAR-F:
79166-BULK-F:
79166-5ML-BULK-F:
79166-5ML-F:
79166-10ML-F:
79166-10ML-BULK-F:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCK5155
BCCK5156
BCCK0221
BCCJ0511
BCCJ0504

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Yawei Liu et al.
ACS nano, 14(2), 1508-1519 (2020-02-14)
Micron-sized lasers fabricated from upconverting nanoparticles (UCNP) coupled to whispering gallery mode (WGM) microresonators can exhibit continuous-wave anti-Stokes lasing useful for tracking cells, environmental sensing, and coherent stimulation of biological activity. The integration of these microlasers into organisms and microelectronics

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