• Unique size distribution: CV<20% (see graphe below)
• No sedimentation thanks to the small size (100nm or 200nm or 300nm)
• High COOH density: 350µmol/g
• High surface area available for specific coupling (up to 25 m²/g for the Carboxyl-Adembeads of 100nm)
• Easy to couple: a complete procedure and buffers have been especially developped for protein coupling
  -  Activation Buffer code (#10101)
  -  Storage Buffer (#10201)
  -  EDC = carbodiimide, (#10401, #10402, #10403, #10404)

References:

1 -The Journal of Immunology, 2007, 179: 186-194. NAD+ Released during Inflammation Participates in T Cell Homeostasis by Inducing ART2-Mediated Death of Naive T Cells In Vivo1 Sahil Adriouch, Sandra Hubert, Severine Pechberty, Friedrich Koch-Nolte , Friedrich Haag and Michel Seman
 
2-Journal of Immunological Methods, 338 (1), p.40-46, Sep 2008, Sensitive and rapid immunoassay for parathyroid hormone using magnetic particle labels and magnetic actuation Dittmer, W.U. / de Kievit, P. / Prins, M.W.J. / Vissers, J.L.M. / Mersch, M.E.C. / Martens, M.F.W.C.

3-Biotechniques 45:523-532 (November 2008): Sequence-independent construction of ordered conbinatorial librairies with predefined crossover points Laetitia Jézéquel, Jasquelin Loeper and Denis Pompon.

4-Analytical Biochemistry 384 (2009)350-352: Use of Magnetic carboxyl beads to purify a cationic peptide in a batch system. Fabrice Byard, Amélie Raveneau, Aurélie Letourneau, Gilles Joucla, Caroline Barbot, Bertrand Garbay, Charlotte Cabanne

5-Ann Toxicol Anal. 2009 DOI: 10.1051/ata/2009053 A rapid superparamagnetic particles-based biosensor immunoassay for drug-of-abuse in oral fluid Sandra Marlin, Ahmed Jehanli, Alan Pang, Gordon Jowett and Dene Baldwin

6-Rapid detection of HIV-1 p24 antigen using magnetic immuno-chromatography (MICT)
Shon Workman, Susan K. Wells, Chou-Pong Pau, S. Michele Owen, X. Fan Dong, Ron LaBorde, Timothy C. Granade Journal of Virological Methods, Volume 160, Issues 1-2, September 2009, Pages 14-21
 

Carboxyl-Adembeads are available as follows: