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Related Experiment Video

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Immunoaffinity microcryogels for purification of transferrin.

Kemal Çetin1, Adil Denizli2

  • 1Biochemistry Division, Department of Chemistry, Hacettepe University, Ankara, Turkey; Biochemistry Division, Department of Chemistry, Necmettin Erbakan University, Konya, Turkey.

Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
|March 26, 2019
PubMed
Summary

New immunoaffinity microcryogels offer a safe and cost-effective method for purifying transferrin (Tf) from plasma. These materials demonstrate high adsorption capacity and efficient protein recovery, showing promise for biotechnological applications.

Keywords:
Anti-transferrinImmunoaffinity chromatographyMicrocryogelsProtein purificationTransferrin

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Area of Science:

  • Biotechnology
  • Biomedical Engineering
  • Materials Science

Background:

  • Immunoaffinity chromatography is crucial for isolating and purifying compounds in biomedical and biotechnological fields.
  • Developing efficient and cost-effective purification methods remains a key challenge.

Purpose of the Study:

  • To synthesize and characterize uniform-sized microcryogels for the one-step purification of transferrin (Tf).
  • To evaluate the adsorption properties and reusability of these immunoaffinity microcryogels.

Main Methods:

  • Synthesis of microcryogels using 2-hydroxyethyl methacrylate and glycidyl methacrylate.
  • Characterization via Raman spectroscopy, FTIR, microscopy, density, and swelling tests.
  • Adsorption studies to determine optimal pH, capacity, and kinetic/isotherm models.

Main Results:

  • Optimal adsorption pH was 6.0 with a maximum capacity of 9.82 mg/g.
  • Langmuir isotherm and pseudo-second-order kinetics indicated single-layered, chemically controlled adsorption.
  • Purification of human serum transferrin (hsTf) from plasma achieved 84% purity and 82% yield.
  • Microcryogels retained significant capacity after ten uses, with a ~20% decrease.

Conclusions:

  • Synthesized immunoaffinity microcryogels with anti-Tf antibodies provide an effective method for transferrin purification.
  • The method is safe, cost-friendly, and demonstrates good reusability, suitable for biotechnological applications.