Use method of precious metal nanocone SERS substrate for detecting novel coronavirus

The invention belongs to the technical field of laser Raman spectroscopy and virus detection, and particularly relates to a use method of a precious metal nanocone SERS substrate for detecting novel coronavirus. The method comprises the following steps: S1, smoothly bending two opposite ends of a substrate towards a surface deviating from a nanocone array by 5-30 degrees; s2, keeping the bending state of the substrate, and placing the precious metal nanocone SERS substrate in a novel coronavirus environment for capturing and collecting; s3, laying the bent substrate flat, and then bending thetwo opposite ends of the substrate by 5-30 degrees towards the face where the nanocone array is located. According to the using method, the precious metal nanocone SERS substrate only needs to be bentduring capturing, the nanocone is in an open state, and coronavirus enters gaps of the nanocone during sampling; after sampling is finished, the substrate is reversely bent, and the nanocone is in aclosed state, so that coron