Real time visualization and characterization of platelet deposition under flow onto clinically relevant opaque surfaces.
Real time visualization and characterization of platelet deposition under flow onto clinically relevant opaque surfaces.
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DOI:
10.1002/jbm.a.35202
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发表时间:
2015-04
影响因子:
4.9
通讯作者:
Wagner, William R.
中科院分区:
文献类型:
--
作者:
Jamiolkowski, Megan A.;Woolley, Joshua R.;Kameneva, Marina V.;Antaki, James F.;Wagner, William R.
Although the thrombogenic nature of the surfaces of cardiovascular devices is an important aspect of blood biocompatibility, few studies have examined platelet deposition onto opaque materials used for these devices in real time. This is particularly true for the metallic surfaces used in current ventricular assist devices (VADs). Using hemoglobin depleted red blood cells (RBC ghosts) and long working distance optics to visualize platelet deposition, we sought to perform such an evaluation. Fluorescently labeled platelets mixed with human RBC ghosts were perfused across 6 opaque materials (a titanium alloy (Ti6Al4V), silicon carbide (SiC), alumina (Al2O3), 2-methacryloyloxyethyl phosphorylcholine polymer coated Ti6Al4V (MPC-Ti6Al4V), yttria partially stabilized zirconia (YZTP), and zirconia toughened alumina (ZTA)) for 5 min at wall shear rates of 400 and 1000 sec−1. Ti6Al4V had significantly increased platelet deposition relative to MPC-Ti6Al4V, Al2O3, YZTP, and ZTA at both wall shear rates (P <0.01). For all test surfaces, increasing the wall shear rate produced a trend of decreased platelet adhesion. The described system can be a utilized as a tool for comparative analysis of candidate blood-contacting materials with acute blood contact.
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DOI:
10.1016/j.ijengsci.2010.09.003
发表时间:
2010-11-01
影响因子:
6.6
作者:
Hund SJ;Antaki JF;Massoudi M
通讯作者:
Massoudi M
影响因子:
4.9
作者:
Milner, KR;Snyder, AJ;Siedlecki, CA
通讯作者:
Siedlecki, CA
影响因子:
4.5
作者:
Lei, Lijuan;Li, Chunhui;Huang, Nan
通讯作者:
Huang, Nan
影响因子:
3.5
作者:
Hund SJ;Antaki JF
通讯作者:
Antaki JF
影响因子:
2.4
作者:
Johnson CA Jr;Vandenberghe S;Daly AR;Woolley JR;Snyder ST;Verkaik JE;Ye SH;Borovetz HS;Antaki JF;Wearden PD;Kameneva MV;Wagner WR
通讯作者:
Wagner WR