使用光镊的微观流变学：测量溶液的相对粘度
Microrheology with Optical Tweezers: Measuring the solutions' relative viscosity at a glance
摘要：
我们提出了一个简单的方法来测量流体的相对粘度通过一个简单的图形分析的归一化位置自相关函数的光学捕获珠，而不需要进行费力的计算。所提出的微观流变学方法的优点变得明显，例如，当它被采用来测量稀有或贵重材料的分子量时，通过它们的特性粘度。与传统的体流变学方法进行了直接比较，验证了所提出的方法。
英文摘要：
We present a straightforward method for measuring the fluids' relative viscosity via a simple graphical analysis of the normalised position autocorrelation function of an optically trapped bead, without the need of embarking on laborious calculations. The advantages of the proposed microrheology method become evident, for instance, when it is adopted for measuring the molecular weight of rare or precious materials by means of their intrinsic viscosity. The proposed method has been validated by direct comparison with conventional bulk rheology methods.
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