申请人:Haidekker A. Mark
公开号:US20060079001A1
公开(公告)日:2006-04-13
A method for detecting local shear stress values using molecular rotors that allows for an extremely sensitive determination of a shear stress field or a flow field, even at very low flow rates. In one embodiment, molecular rotors may be adhered to a fiber optic probe or other solid surface, and the fluorescence emission of those molecular rotors may be probed at a location of the fiber optic probe tip or other solid surface. In another preferred embodiment, rotors may be adhered to another solid surface, such as any glass or polymer substrate that may be pre-functionalized (e.g., quartz, polystyrene or silicate glass) to create a probe that may then be used for in vivo as well as in vitro viscosity measurements. In another embodiment, molecular rotors may be dissolved in a target solution, and emission intensity obtained by one of several techniques.
一种利用分子转子探测局部剪切应力值的方法,即使在流速很低的情况下,也能极其灵敏地确定剪切应力场或流场。在一个实施方案中,分子转子可以粘附在光纤探针或其他固体表面上,这些分子转子的荧光发射可以在光纤探针尖端或其他固体表面的位置进行探测。在另一个优选的实施方案中,可将转子粘附到另一个固体表面上,如任何可预先功能化的玻璃或聚合物基底(如石英、聚苯乙烯或硅酸盐玻璃),以创建一个探针,然后用于体内和体外粘度测量。在另一个实施方案中,分子转子可以溶解在目标溶液中,并通过多种技术之一获得发射强度。