Preparation and Adsorption Properties of Novel Porous Microspheres with Different Concentrations of Bilirubin

Blood Purif. 2016;42(2):104-10. doi: 10.1159/000445933. Epub 2016 May 25.

Abstract

Background: Plasma perfusion was widely used to clear toxic substances of plasma. Particle size and uniformity of adsorbent microspheres also affect the absorption rate.

Methods: Conventional suspension polymerization was improved using a pre-dispersion homogenizer to obtain novel adsorbent microspheres, named ERM-0100. Microsphere-related characteristics and attributes were analysed.

Result: The ERM-0100 microspheres efficiently adsorbed different bilirubin concentrations, with a maximum rate of 59.72 ± 1.08%. At high bilirubin concentrations, ERM-0100 exhibited similar adsorption rate with BRS350 and BS330 (p = 0.303, p = 1.000, relatively), and higher than HB-H-6 (p = 0.000). At different concentration, ERM-0100 showed good adsorption performance. The ERM-0100 had no significant adsorption for electrolyte; for TP and ALB, the loss rates of ERM-0100 were 15.65 ± 0.36 and 23.23 ± 1.11%, respectively. In addition, ERM-0100 showed good blood compatibility.

Conclusion: The ERM-0100 is a potential biomedical material for plasma perfusion for good effect, less costs and more safety. The microspheres may be coated to reduce its protein adsorption.

Publication types

  • Evaluation Study

MeSH terms

  • Adsorption
  • Bilirubin / isolation & purification*
  • Biocompatible Materials / chemistry*
  • Humans
  • Kinetics
  • Microspheres*
  • Particle Size
  • Perfusion / methods*
  • Perfusion / standards
  • Porosity
  • Proteins

Substances

  • Biocompatible Materials
  • Proteins
  • Bilirubin