Bifunctional MoO3–x/CuS Heterojunction Nanozyme-Driven “Turn-On” SERS Signal for the Sensitive Detection of Cerebral Infarction Biomarker S100B

The use of nanozymes has become a promising auxiliary approach to "turn on" surface-enhanced Raman scattering (SERS) signals for the label-free detection of disease markers. Nevertheless, there are still major challenges to develop bifunctional nanomaterials with both excellent enzyme-like activity and high SERS performance. To this end, a novel Z-scheme MoO