Motion of polymerized albumin particles in a model arteriole in the presence of red blood cells

Tetsuya Tsuji, Shinji Takeoka, Yosuke Okamura, Ryo Sudo, Yasuo Ikeda, Kazuo Tanishita

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1 Citation (Scopus)


Polymerized albumin particles (poly Alb) with recombinant glycoprotein Ibα (rGPIbα-poly Alb) are a promising candidate for a platelet substitute. Thus, we focused on the lateral motion of poly Alb in the presence of red blood cells, because the lateral motion plays an important role in aggregate formation. We visualized the microscopic motion of poly Alb toward the immobilized ligand (von Willebrand factor, VWF) surface in a model arteriole with red blood cells with a high-speed camera. At a higher shear rate of 1,500 s-1, the concentration profile of poly Alb appeared to peak near the wall. This profile enhances the interaction between the particles and wall. Particularly the migration angle, being the angle of the poly Alb velocity vector, was enlarged near the wall and contributed to transfer of poly Alb toward the immobilized VWF surface. This tendency is desirable to achieve the adhesion of particles on the wall.

Original languageEnglish
Pages (from-to)29-34
Number of pages6
JournalJournal of Biorheology
Issue number1
Publication statusPublished - 2009 Dec 1



  • Lateral motion
  • Platelet substitute
  • Polymerized albumin particles
  • Von Willebrand factor

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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