论文标题
使用液晶纹理探测微生物的形状
Probing shapes of microbes using liquid crystal textures
论文作者
论文摘要
我们提出了一种新型技术，可以通过使用交叉磨砂器设置观察到黑暗刷子的几何形状，以探测嵌入在列液晶（NLC）样品中的单个微生物的形状。假设NLC主管在微生物表面的某些锚定条件下，我们使用数值模拟确定刷子的形状。我们的结果表明，对于不对称的微生物（例如圆柱形细菌/病毒），所致的刷子可能会在相对较大的距离处带有这种不对称的烙印（例如，圆柱形形状的长宽比），以便在几百个范围内使用简单的微生物尺寸。
We propose a novel technique to probe shape of a single microbe embedded in a nematic liquid crystal (NLC) sample by observing geometry of dark brushes with optical microscope using a cross-polarizer set up. Assuming certain anchoring conditions for the NLC director at the surface of the microbe, we determine the resulting shapes of brushes using numerical simulations. Our results suggest that for asymmetrical microbes (such as cylindrical shaped bacteria/viruses), resulting brushes may carry the imprints of this asymmetry (e.g. the aspect ratio of cylindrical shape) at relatively large distances to be able to be seen using simple optical microscopy even for microbe sizes in few tens to few hundred nanometer range.
