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Biochemistry Characterization

Creative Biolabs has rich experience in antibody engineering and assessment field, which can provide a wide range of analysis services to make you have an overall understanding of the biochemistry features of your bispecific antibodies (BsAbs). Our elaborate characterization platforms based on various analysis techniques are unprecedented in analyzing BsAbs sample purity, molecular weight and molecular structure. With the latest instruments and professional staffs, Creative Biolabs is dedicated to offering first-class biochemistry characterization services to meet your BsAb development goal in a time-saving manner.

The biochemistry characterization of bispecific antibody we can offer includes:

  • Purity analysis
  • Molecular weight/mass measurement
  • Molecular structure analysis

Biochemistry Characterization

Our BsAb characterization platforms include, but not limited to:

    Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) is a very common analytical technique for separating and characterizing proteins by electrophoresis, which uses a discontinuous polyacrylamide gel as a support medium, and sodium dodecyl sulfate (SDS) to denature the proteins. This technique can be used to estimate the relative molecular mass, determine the relative abundance of major kinds of proteins in a sample and the protein distribution among different fractions, and assess the purity of protein samples.
  • Western blot analysis
    Western blot, also called immunoblotting, is a useful technique for protein detection. This analysis method combines the separation ability of gel electrophoresis with the specificity of immunoassays, which allows the identification and analysis of a certain kind of protein in the mixture.
  • SEC-based analysis
    • SEC
      Size-exclusion chromatography (SEC) is a chromatographic method, which can be used to separate and characterize certain kinds of proteins in a sample according to their size. SEC works by trapping smaller molecules in the pores of the adsorbent materials, meanwhile the larger molecules simply pass by the pores. As a result, larger molecules flow through the column much faster than smaller ones.
    • SEC-MALS
      SEC multi-angle light scattering (SEC-MALS) is an analytical technique combining SEC and multi-angle static light scattering (MALS) to provide an absolute measurement of molecular weight. MALS measures the absolute molar mass and size of molecules in solution mainly based on the intensity and the angular dependence of the scattered light. SEC-MALS analysis allows for more accurate mass measurement than either of these two methods alone.
  • ESI-MS
    Electrospray ionization mass spectrometry (ESI-MS) is an important technique for structural study or quantitative measurement of bio-molecule in a complex biological sample. This technique can overcome the drawbacks of other conventional techniques and perform an effective study of non-volatile and thermally labile bio-molecules with only a small sample amount.

For research use only. Not intended for any clinical use.

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