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Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...
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Related Experiment Video

Updated: Jun 9, 2026

Activated Cross-linked Agarose for the Rapid Development of Affinity Chromatography Resins - Antibody Capture as a Case Study
07:53

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Published on: August 16, 2019

Copper complexed polymer carriers for IgG adsorption.

K S Joshy1, Willi Paul, Chandra P Sharma

  • 1Division of Biosurface Technology, Biomeical Technology Wing, Sree Chitra Tirunal Institute for Medical Science and Technology, Poojappura, Thiruvananthapuram 695 012, Kerala, India.

Journal of Colloid and Interface Science
|September 7, 2010
PubMed
Summary
This summary is machine-generated.

Researchers developed cost-effective copper-immobilized poly (vinyl alcohol) and poly (styrene allyl alcohol) gel beads. These novel matrices significantly enhanced immunoglobulin G (IgG) adsorption from aqueous solutions.

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Published on: November 19, 2018

Area of Science:

  • Biomaterials Science
  • Separation Science
  • Biotechnology

Background:

  • Traditional matrices for therapeutic molecule purification are often expensive.
  • There is a need for cost-effective alternatives in bioseparation.
  • Immunoglobulins, like immunoglobulin G (IgG), are crucial therapeutic molecules.

Purpose of the Study:

  • To develop and characterize novel copper-immobilized gel beads for enhanced IgG adsorption.
  • To evaluate the efficiency of poly (vinyl alcohol) [PVA] and poly (styrene allyl alcohol) [PSA] based matrices.
  • To assess the biocompatibility of the developed matrices.

Main Methods:

  • Preparation of copper-immobilized PVA and PSA gel beads.
  • Characterization of gel beads, including copper content estimation via EDX analysis.
  • Evaluation of IgG adsorption capacities and biocompatibility tests (erythrocyte aggregation, lysis, cell counting).

Main Results:

  • Copper immobilization significantly increased IgG adsorption capacities compared to unmodified beads.
  • The developed copper-immobilized microparticles demonstrated efficient IgG separation.
  • Compatibility tests indicated the matrices' suitability for biological applications.

Conclusions:

  • Copper-immobilized PVA and PSA gel beads offer a cost-effective and efficient matrix for IgG separation.
  • These novel biomaterials present a promising alternative for therapeutic molecule purification.
  • The study highlights the potential of metal-immobilized polymers in bioseparation technologies.