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      CANDOR Bioscience is Now Part of Medix Biochemica

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      Press Release

      About CANDOR Bioscience

      In January 2025, Medix Biochemica acquired CANDOR Bioscience GmbH, a leading provider of immunoassay solutions based in Wangen, Germany. This acquisition strengthens Medix Biochemica’s IVD raw materials portfolio and enhances its support for immunoassay developers worldwide.

      Founded in 2004, CANDOR Bioscience specializes in high-performance solutions for immunoassays, offering a comprehensive portfolio designed to improve test reliability and simplify assay development. Its product range includes HAMA and interference blockers, surface blockers, stabilizers and buffer solutions for immunoassays.

      CANDOR Bioscience lab

      You can find all the same high quality CANDOR Bioscience products under Medix Biochemica's product portfolio.

      Explore how CANDOR’s product portfolio enhances and complements Medix Biochemica’s offerings.

      HAMA and interference blockers
      HAMA and Interference Blockers
      These sample and antibody diluents can reduce interferences in immunoassays caused by HAMA, rheumatoid factors, nonspecific binding, cross-reactivities and matrix effects. The use of these assay diluents can prevent false positive or false negative results and therefore improve the reliability of the results.
      Download White Paper
      Surface Blockers
      Surface Blockers
      Our surface blockers prevent unwanted binding and reduce background signal in ELISA and other immunodiagnostics. Without effective surface blocking, assay antibodies, tracers, analytes or other components of the sample would bind to the surface.
      Read More
      Stabilizers
      Stabilizers
      Our immunoassay stabilizers preserve protein functionality, ensuring long-term reliability for IVD manufacturers. They protect antibodies, conjugates, and antigens in solution and on coated surfaces, maintaining assay performance and supporting the production of high-quality immunoassays with extended shelf life.
      Read More

      Interested in ordering a sample? We'd love to talk to you!  Contact us here!

      Get in Touch

      Benefits of using Premium Solutions for Immunoassay Blockers and Stabilizers

      • Preventing interferences
      • Avoiding false positives / false negatives
      • Improved reliability of results
      • Better stability of assay components
      • Faster assay protocols

        Download a Flyer
      candor_labor_elisa_platte_pipettieren_1_small

      Blockers

      HAMA and Interference Blockers

      These sample and antibody diluents can reduce interferences in immunoassays caused by HAMA, rheumatoid factors, nonspecific binding, cross-reactivities and matrix effects. The use of these assay diluents can prevent false positive or false negative results and therefore improve the reliability of the results.

      Assay Defender® Sample diluent for blocking HAMA and other high affinity interfering antibodies. Minimizes nonspecific binding, cross-reactivities and matrix effects in immunoassays based on human or animal body fluids.

      LowCross-Buffer®

      Assay diluent for minimizing nonspecific binding, cross-reactivities and matrix effects in immunoassays.
      LowCross® HRP-Stab Diluent for long-term storage of HRP conjugates and for minimizing nonspecific binding.
      Download Interference in Immunoassays White Paper
      Order a Sample
      Surface Blockers

      The surfaces of ELISA plates or Western blotting membranes are optimized for efficient attachment of proteins and antibodies. This enables optimal assays with a high density of capture antibodies or capture molecules on the surfaces. As a consequence of this optimization of the surfaces, many other proteins or peptides and other molecules from the sample can attach on the surface, too. Without surface blocking, assay antibodies, tracers, analytes or other components of the sample would bind to the surface. This can lead to false results or high background signals and therefore it has to be prevented in order to get reliable assays. Blocking is necessary to saturate free binding capacities of the respective surfaces. This saturation can be achieved by covering the surface with a dense layer of molecules without gaps in this layer.

      Medix Biochemica's CANDOR products offer surface blockers with different formulations and blocking characteristics. The Blocking Solution is a premium casein based blocker for routine applications as well as for challenging immunoassays. SmartBlock™ is a very efficient peptide based blocker. PlateBlock™ is an animal-free and protein-free surface blocker for ELISA plates specifically for serological assays (antigen-down-assays).

      The Blocking Solution

      Casein based blocker for saturating free binding sites on plastic surfaces or other protein binding surfaces and for minimizing nonspecific binding to surfaces.
      SmartBlock™ BSA-free blocker for saturating free binding sites on plastic surfaces or other protein binding surfaces.
      PlateBlock™ Animal-free and protein-free blocker for plastic surfaces of ELISA plates specifically for serological assays (antigen-capture-assays).
      Order a Sample

      Stabilizers

      Immunoassay stabilizers are needed to preserve the native conformation of proteins and to protect them from losing their functionality. Stabilizers for immunoassays allow long-term storage of antibodies, conjugates (e.g. HRP-labeled or AP-labeled) and antigens in solutions as well as coated onto surfaces like microtiter plates or others. Medix Biochemica's CANDOR products offer stabilizers to protect proteins, antibodies and conjugates in solution as well as stabilizers for antibodies coated on surfaces. The portfolio ranges from Liquid Plate Sealer® over HRP-Protector™, AP-Protector®, Antibody Stabilizer to LowCross® HRP-Stab.

      To always get the same reliable results in immunoassays, it is essential to preserve standards for calibration curves, coated plates and antibodies during storage. Medix Biochemica's CANDOR stabilizers can be used for preserving activity of all biological components of an immunoassay. Medix Biochemica's CANDOR stabilizers are routinely used for production of commercial ELISA kits with shelf lives of 2 or more years.

      Liquid Plate Sealer® Stabilizer for coated antibodies and antigens on polystyrene- or glass-surfaces.
      HRP-Protector™ Diluent for long-term storage of HRP conjugates.
      AP-Protector® Diluent for long-term storage of alkaline phosphatase conjugates
      Antibody Stabilizer Stabilizer for long-term storage of proteins/antibodies at 2-8°C.
      LowCross® HRP-Stab Diluent for long-term storage of HRP conjugates and for minimizing nonspecific binding.
      Order a Sample

      Get in Touch Today

      Reach out for any inquiries or support requests.

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