COMPEL™ are highly uniform superparamagnetic microspheres ideal for applications that demand uniform particle response, such as miniaturized bioassays and separations. COMPEL™ are comprised of iron oxide crystals dispersed in a polymer matrix, with a functional polymer overcoating for the encapsulation of magnetite and the introduction of reactive groups. As they are polymer-based, they retain the low density that is advantageous for biomolecular assays. Our initial offerings include 3µm, 6µm, and 8µm beads with measured CVs of ≤ 5% and high levels of COOH-functionalization. The carboxyl-modified undyed COMPEL are supplied as ~5% solids (w/w) and the streptavidin-coated COMPEL are supplied at ~1% solids (w/v).

COMPEL™ COOH modified

Catalog Number Catalog Code Description Nominal Diameter Specification Range Product Data Sheet Safety Data Sheet
UMC3001 UMC3N COMPEL Magnetic, COOH Modified 3µm 2.50-3.50 PDS 705.pdf SDS MG220.pdf
UMC3002 UMC3N COMPEL Magnetic, COOH Modified 6µm 5.50-6.50 PDS 705.pdf SDS MG220.pdf
UMC4001 UMC4M COMPEL Magnetic, COOH Modified 8µm 7.50-8.50 PDS 705.pdf SDS MG220.pdf

Fluorescence COMPEL™ 

Catalog Number Catalog Code Description Fluorescence Color Nominal Diameter Specification Range Product Data Sheet Safety Data Sheet
UMGB001 UMC3F COMPEL™ Magnetic COOH modified Glacial Blue 3µm 2.50 - 3.50µm PDS 705.pdf SDS MF221.pdf
UMDG001 UMC3F COMPEL™ Magnetic COOH modified Dragon Green 3µm 2.50 - 3.50µm PDS 705.pdf SDS MF221.pdf
UMEG001 UMC3F COMPEL™ Magnetic COOH modified Envy Green 3µm 2.50 - 3.50µm PDS 705.pdf SDS MF221.pdf
UMFR001 UMC3F COMPEL™ Magnetic COOH modified Flash Red 3µm 2.50 - 3.50µm PDS 705.pdf SDS MF221.pdf
UMGB002 UMC3F COMPEL™ Magnetic COOH modified Glacial Blue 6µm 5.50 - 6.50µm PDS 705.pdf SDS MF221.pdf
UMDG002 UMC3F COMPEL™ Magnetic COOH modified Dragon Green 6µm 5.50 - 6.50µm PDS 705.pdf SDS MF221.pdf
UMFR002 UMC3F COMPEL™ Magnetic COOH modified Flash Red 6µm 5.50 - 6.50µm PDS 705.pdf SDS MF221.pdf
UMGB003 UMC4F COMPEL™ Magnetic COOH modified Glacial Blue 8µm 7.50 - 8.50µm PDS 705.pdf SDS MF221.pdf
UMDG003 UMC4F COMPEL™ Magnetic COOH modified Dragon Green 8µm 7.50 - 8.50µm PDS 705.pdf SDS MF221.pdf
UMFR003 UMC4F COMPEL™ Magnetic COOH modified Flash Red 8µm 7.50 - 8.50µm PDS 705.pdf SDS MF221.pdf

 Streptavidin Coated COMPEL™

Catalog Number Catalog Code Description Nominal Diameter Specification Range Product Data Sheet Safety Data Sheet
UMC0100 CM01N SA/ COMPEL 3µm 2.50 - 3.50µm PDS 721.pdf SDS CG155.pdf
UMC0101 CM01N SA / COMPEL 6µm 5.50 - 6.50µm PDS 721.pdf SDS CG155.pdf
UMC0102 CM01N SA / COMPEL 8µm 7.50 - 8.50µm PDS 721.pdf SDS CG155.pdf
UMC

References

Diekmann, R., Wolfson, D. L., Spahn, C., Heilemann, M., Schüttpelz, M., & Huser, T. (2016). Nanoscopy of bacterial cells immobilized by holographic optical tweezers. Nature Communications, 7.