Beta-amyloid (1-42) Alzheimer's disease first-generation detection kit and Total-tau (441) protein Alzheimer's disease first-generation detection kit, Total-tau (441) We are developing a set of Alzheimer’s disease biomarkers detection kits using nanoparticle-based tools, including Beta-amyloid (1-42), Beta-amyloid (1-40), Total-tau441 protein and Phosphate-tau181 protein for laboratory use. It can apply as a screening tool to detect and diagnose Alzheimer’s disease in an early stage.