Your Outsourcing Partner for Protein Research and Production Services

To meet the needs of our clients, Exon BioSystems provides protein characterization of our expressed protein to insure the quality of recombinant protein.

Recombinant Protein Expression

Exon BioSystems is a protein contract research and production services company specializing in recombinant protein expression, protein purification, and protein characterization.

Antibody Engineering

Additional areas of expertise include assay development of G-protein coupled receptor, recombinant vaccine development and recombinant antibody production.

Biologics

Exon BioSystems is a protein contract research and production services company specializing in recombinant protein expression, protein purification, and protein characterization.

Magnetic Particles

MagneStar® magnetic particles are developed by Nano-Micro. These particles are of great interest in the fields of biotechnology and biomedicine. Such magnetic nanoparticles are very useful in effective separation of biomolecules, cells, and as a catalyst support. For example, magnetic microparticles pre-coated with antibodies against specific cell surface antigens can be used for cell separation. Nanomicrotech has designed and produced magnetic nano- and microparticles containing different functional groups such as carboxyl, hydroxyl, and amino groups for various applications. In addition, Protein A modified magnetic particles are also available for purification of protein antibodies.

Particle Structure:
MagneStar® is a series of products of magnetic particles with narrow size distribution and super paramagnetism. These small magnetic particles have a core, and a layer of magnetic compound sandwiched between the core and an outermost layer. The outermost layer of the particles is either inorganic or functionalized organic material, which completely covers the magnetic compound to prevent it from potentially incompatible interaction with biomaterials. These magnetic particles have a very good dispersity with well controlled particle size and narrow particle size distribution.


Another type of MagneStar® has a core-shell structure in which the core is a magnetic compound, and the shell is either inorganic or organic material. The surface of the particle is equipped with various functional groups such as amino, epoxy, carboxyl acid, and hydroxyl, etc. for different applications. These magnetic particles have large specific surface area and high magnetic content.



MagneStar® Magnetic Particle Characteristics:
  • Well controlled particle size and shape
  • Embedded submicron magnetic particles preventing potentially incompatible interaction between biomolecules
  • Nonspecific binding eliminated to enhance assay sensitivity and selectivity
  • Various function groups available for biomolecule coupling
  • Superparamagnetic in nature
  • Good dispersity
  • High magnetic content
  • Large surface area
  • Suitable for cell separation, affinity purification and DNA probe assays

Product Applications:
The Super paramagnetic nature of MagneStar™ magnetic particles allows them to be separated by a magnet instantly, but the particles re-suspend easily when remvoed from the magnet. They will not retain any significant magnetism after repeated exposure to strong magnetic fields.

For more information please call _858-457-1920 or e-mail us at: info @ exonbio.com, or use our contact page: Contact