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平行板流动腔在靶向超声造影剂研究中的进展
近年来,靶向超声分子成像的发展十分迅猛,靶向超声造影剂在靶组织中的特异聚积程度是实现超声分子成像的关键,决定这种特异聚积程度的重要因素是靶向超声造影剂的靶向黏附效能.在评价靶向超声造影剂黏附效能的众多技术和方法中,新兴的平行板流动腔技术展示了其特有的优势,并被认为是体外评价靶向超声造影剂黏附效能有用的方法,本文就平行板流动腔在靶向超声造影剂研究中的进展作一概述.
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Cellular Engineering in Cell Biology
The behavior of leukocyte-surface interaction is studied in lught of its important robe in the infalammatory process and in the development of ovtificial organs associated with prolonged blood contact. The process of cell-surface interaction revolves around a complex balance of forces arising from hemodynamic shearing effect and the strength of adhesive bonds between cell and substrate.This balance depends strongly on cell deformability and the expression of cell adhesion molecules (CAMs).In the course of these studies,a novel side-view flow chamber system has been developed to examine leukocyte(white blood cell)deformation and adhesion to various surfaces (cultured vascular endothelium,reconstituted purified CAMs,or biomaterials )under flow conditions that simulate the in vivo envronment.
