SiO2 with carboxyl (COOH) surface groups for the covalent attachment of biomolecules (see TechNote 104). Carboxyl silica microspheres are sold in 1.0g amounts. Supplied dry, they are available in four nominal mean diameters: ~0.5µm, ~1.0µm, ~2.0µm, and ~5.0µm.

*Please note: If you are NOT ordering via website, please specify a lot number if multiple lots are available.  
Catalog Number Catalog Code Nominal Diameter Specification Range Product Data Sheet Safety Data Sheet
SC03000 SC02N 0.5µm

0.46 - 0.54µm

PDS 702.pdf SDS SG141.pdf
SC04000 SC03N 1.0µm 0.95 - 1.05µm PDS 702.pdf SDS SG141.pdf
SC05000 SC04N 2.0µm 2.80 - 2.20µm PDS 702.pdf SDS SG141.pdf
SC05001 SC05N 5.0µm 4.80 - 5.20µm PDS 702.pdf SDS SG141.pdf

References

Wang L, Yang C, Tan W. (2004) Dual-luminophore-doped silica nanoparticles for multiplexed signaling. Nano Lett; 5(1):37-43.

Lauer, SA, Nolan, JP (2002) Development and characterization of Ni-NTA-bearing microspheres. Cytometry, 48: 136–145

Yoo CE, Moon HS, Kim YJ, Park JM, Park D, Han KY,…Park WY (2015) Highly dense, optically inactive silica microbeads for the isolation and identification of circulating tumor cells. Biomaterials Jan;75:271-8

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