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 fluorescent and streptavidin-coated versions of 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™ 

COMPEL's polymer matrix is conducive to dyeing, and fluorescent versions are available.

 

 

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.