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Polymer Microspheres

Carboxyl Polymer

EDAC-mediated coupling is often used for the covalent immobilization of amine-terminated proteins, DNA, or other molecules on carboxyl-functionalized PS and P(S/DVB) microspheres. This chemistry is featured in our PolyLink Coupling Kit.

We titrate carboxyl beads to determine level of functionality, and lot-specific results are reported below. Surface titer values are also used in the calculation of parking area, which serves to describe the density of COOH groups distributed on the surface, i.e. carboxyl content normalized for surface area. As the parking area describes the amount of space "between" carboxyl groups, low parking area values indicate dense surface coverage.

Last Updated 2:39pm EST, February 3, 2012
Product Selection
In Stock Product Number Mean Diameter (µm) Std Dev (µm) or Range Polymer Description Density
(g/cu cm)		 Surface Groups Surface Charge (µeq/g) Parking Area (sq.A/grp) % Solids
Order PC03N/6538 0.51 P(S/15%AA) high acid content 1.06 COOH/1 270.6 6.8 9.9
Order PC03N/10162 0.51 P(S/V-COOH) 1.06 COOH/1 195 9.4 10.1
Order PC03N/9782 0.53 P(S/V-COOH) 1.06 COOH/1 185 9.6 10.1
Order PC03N/6568 0.56 P(S/15%AA) high acid content 1.06 COOH/1 117.8 14.2 10.5
Order PC03N/6540 0.57 0.12 P(S/15%AA) high acid content 1.06 COOH/1 187.1 8.8 9.9
Order PC03N/6487 0.59 P(S/V-COOH) 1.06 COOH/1 28.5 56.4 10
Order PC03N/7925 0.6 P(S/V-COOH) 1.06 COOH/1 208 7.5 10
Order PC03N/4754 0.82 P(S/V-COOH) 1.06 COOH/1 15 76.9 10
Order PC03N/9759 0.82 P(S/V-COOH) 1.06 COOH/1 796 1.4 10.1
Order PC03N/10235 0.82 P(S/V-COOH) 1.06 COOH/1 43.7 26.2 9.9
Order PC03N/8558 0.86 P(S/V-COOH) 1.06 COOH/1 137 8 9.8
Order PC03N/3316 0.93 0.02 P(S/V-COOH) 1.06 COOH/1 5 202.1 10