Advancements in Surface Plasmon Resonance Sensors for Real-Time Detection of Chemical Analytes: Sensing Materials and Applications

Abstract

Chemicals are being used in various fields with the development of industry, but the importance of human safety from chemicals is emerging. Instead of the traditional detection methods of analyzing analytes through preprocessing have limits in real-time circumstances On the other hands, LSPR and SPR sensors that rapidly and accurately detect chemicals in real time are one of the most reliable ways to protect against threats of chemicals. LSPR and SPR sensors are a technology that detects minute interactions between sensing materials and chemicals through changes in absorbance and refractive index, and can accurately detect even the smallest changes. In order to maximize the performance of LSPR and SPR sensors capable of real-time detection and apply them to various fields, research has been actively conducted on various types of sensing materials by ongoing research on innovative materials, fabrication techniques, and nanostructure. The future perspectives on sensing materials for real-time detection technologies used by LSPR and SPR sensors are discussed. This review presents guidelines for selecting sensing materials used in LSPR and SPR sensors in real-time applications.