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.
复制标题

DOI:
10.1002/jbm.a.35202
复制
发表时间:
2015-04
影响因子:
4.9
通讯作者:
Wagner, William R.
Wagner, William R.
中科院分区:
工程技术3区
文献类型:
--
作者:
Jamiolkowski, Megan A.;Woolley, Joshua R.;Kameneva, Marina V.;Antaki, James F.;Wagner, William R.

文献摘要

参考文献

被引文献

相似文献

尽管心血管装置表面的血栓形成性质是血液生物相容性的一个重要方面,但很少有研究实时检查血小板沉积在用于这些装置的不透明材料上。对于当前心室辅助装置 (VAD) 中使用的金属表面尤其如此。我们试图使用血红蛋白耗尽的红细胞(红细胞血影)和长工作距离光学器件来可视化血小板沉积,以进行此类评估。将荧光标记的血小板与人红细胞血影混合,灌注到 6 种不透明材料(钛合金 (Ti6Al4V)、碳化硅 (SiC)、氧化铝 (Al2O3)、2-甲基丙烯酰氧基乙基磷酰胆碱聚合物涂层 Ti6Al4V (MPC-Ti6Al4V)、氧化钇部分稳定氧化锆 (YZTP) 和氧化锆增韧氧化铝) (ZTA)) 5 分钟,壁剪切速率为 400 和 1000 sec−1。在两种壁剪切速率下,相对于 MPC-Ti6Al4V、Al2O3、YZTP 和 ZTA,Ti6Al4V 的血小板沉积均显着增加(P <0.01)。对于所有测试表面,增加壁剪切速率会产生血小板粘附力降低的趋势。所描述的系统可以用作对具有急性血液接触的候选血液接触材料进行比较分析的工具。
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.
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
DOI: 10.1002/jbm.a.30554
发表时间: 2006-03-01
影响因子: 4.9
作者:
Milner, KR;Snyder, AJ;Siedlecki, CA
通讯作者: Siedlecki, CA
DOI: 10.1007/s10853-011-5634-1
发表时间: 2011-11-01
影响因子: 4.5
作者:
Lei, Lijuan;Li, Chunhui;Huang, Nan
通讯作者: Huang, Nan
DOI: 10.1088/0031-9155/54/20/024
发表时间: 2009-10-21
影响因子: 3.5
作者:
Hund SJ;Antaki JF
通讯作者: Antaki JF
DOI: 10.1111/j.1525-1594.2010.01023.x
发表时间: 2011-01
期刊: Artificial organs
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