Abstract
A system for detecting dust mite antigen comprising:a SERS chip without immunological modification and used to carry a dust sample, wherein the SERS chip comprises nanogold coated on silver columns extending from a surface; and a Raman spectrometer for imposing a surface-enhanced Raman examination on the dust sample on the SERS chip, wherein the Raman spectrometer comprises a spectrum database having information of at least one standard dust mite antigen, the information includes Raman spectrums and corresponding standard curves for a relationship between characteristic peak signals and concentrations, wherein in a Raman determination, the Raman spectrum of a to-be-examined sample is referred with the Raman spectrum of the standard dust mite antigen to determine whether any dust mite antigen identical to the standard dust mite antigen exists in the to-be-examined sample, and the standard curve is used to calculate the concentration of the dust mite antigens in the to-be-examined sample if there is dust mite antigens determined identically to the standard dust mite antigen in the to-be-examined sample.