Research on Mixed Analyte Sensing Technology Based on Terahertz Metamaterial EIT Resonance

Terahertz (THz) metasurface sensors have attracted much attention in the field of biosensing, providing a powerful tool for trace detection and differentiation of mixed analytes. In this paper, the designed THz metasurface was investigated for the sensing of mixed sugars based on the electromagnetic induction transparency (EIT) effect and principal component analysis (PCA). The sensor can discriminate between different ratios of mixed analytes even without introducing antibodies. Our study provides a convenient route for complex biochemical sensing.