| 摘要 |
A visualized plasmon resonance biodetector utilizes the surface plasmon resonance to detect a plurality of biochemical molecules, and comprises a substrate, a silver-gold dual-layer structure, and a visible light source. The silver-gold dual-layer structure is formed on the substrate and has an optical grating structure on one side far away from the substrate. In a test, the biochemical molecule combines with the silver-gold dual-layer structure, and the visible light source emits a visible light to illuminate the substrate. Then the silver-gold dual-layer structure on the substrate generates surface plasmon resonance and a reflected light. The user can use his naked eyes to discriminate the reflected lights and learn the component and concentration of the biochemical molecule. Therefore, the biodetector can provide a low-cost and easy-to-operate detection instrument for biotests.
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