MagSi-STA beads allows scientists to use streptavidin coated MagSi silica beads to immobilize biotinylated compounds for capturing targeted molecules. Strong read-out signals and lowered background noise enable scientists to create sensitive assays with improved dynamic range. Besides standard solutions MagnaMedics offers customized MagSi-STA products optimized according to client specifications.


Would you like to learn more about the advantages of our products? Please have a look to our application notes here.

Click here for more information about optimizing the physical and biological properties of magnetic beads specifically suited for IVD assays.

MagSi-protein A and/or G beads can be used to detect or isolate target proteins by coupling the Fc domain of the IgG antibody for a target protein. The advantage of these beads compared to streptavidin beads is that the antibody does not need to be biotinylated. So they are ideal for protein isolation and proteomics.

Would you like to learn more about the advantages of our products? Please have a look to our application notes here.

MagSi-proteomics beads are magnetic beads that are an ideal tool for the purification, concentration and desalting of peptides and protein digests. The surface of the beads has been modified with C4, C8 and C18 -alkyl groups that are typical for reversed phase applications.

The MagSi-WCX (weak cation exchange) magnetic beads have the typical ion exchange properties well known from classical chromatography. Protein and peptides are charged at the surface and will be adsorbed to magnetic beads under low salt condition. Under high salt conditions or by pH shift the target proteins/peptides are eluted (ion exchanged). Due to the different binding/elution mechanisms the MagSi-WCX beads are a powerful alternative to the MagSi proteomics beads.

The MagSi-WAX (weak anion exchange) magnetic beads are the “counter” beads to the MagSi WCX beads. Binding, washing and elution are also triggered by the protein/peptide total net charge. The MagSi-WAX beads are ideally suited when more acidic proteins/peptides are expected in the sample. However, our protocols given in the corresponding product sheet cover buffer systems for acidic, neutral and basic conditions.
MagSi-WCX beads are magnetic silica beads with a high magnetic content optimized for protein and peptide separation. Since the MagSi-WCX and MagSi-WAX act as counter-beads, MagnaMedics recommends to test both types of beads, to see which suits best in your individual application.

Would you like to learn more about the advantages of our products?

You need help with selecting the right product for your application?

Please have a look to our application notes here.

MagSi-S-Tools are particles for research & developmental use. MagnaMedics has more than 10 different coatings available for further bio-conjugations. Most common surface modifications for kit and application developmentare available.