Fiber optic surface plasmon resonance (SPR) sensors are the miniaturized alternative to the conventional prism based SPR platform. Among its various types, microstructure optical fiber (MOF) sensors have recently gained immense popularity, owing to the possibility of a controlled or enhanced interaction between the guided light and sensing analyte. In this review, we discuss about the hollow MOFs utilized as liquid core SPR sensors that are particularly useful for detecting high refractive index analytes. The paper starts with a brief introduction to MOFs and SPR sensing principle. This is followed by a detailed discussion about the various fiber geometries as well as strategies applied to enhance the detection and their performance attributes. The reported literature has been categorized for this purpose based on the type of fibers used. Finally, the present concerns and future scopes of liquid infiltration-based MOF sensing technology are outlined.

光纤表面等离子体共振 (SPR) 传感器是传统基于棱镜的 SPR 平台的小型化替代品。在其各种类型中，微结构光纤 (MOF) 传感器最近获得了极大的普及，这是由于引导光和传感分析物之间可能发生受控或增强的相互作用。在这篇综述中，我们讨论了用作液芯 SPR 传感器的中空 MOF，这些传感器对于检测高折射率分析物特别有用。本文首先简要介绍了 MOF 和 SPR 传感原理。随后详细讨论了各种光纤几何形状以及用于增强检测及其性能属性的策略。为此，已根据所用纤维的类型对报告的文献进行了分类。最后，