Nano Diagnosis for Health Biotech (Guangzhou) Co., Ltd., known as Guangna Dakang, is a high-tech company founded in November 2020. Its development builds on technology accumulated by the research team at the National Engineering Research Center for Nanomedicine, with support from the Guangdong-Hong Kong-Macao Greater Bay Area National Center of Technology Innovation for Nanomedicine. The company focuses on developing and manufacturing rapid testing products and expanding their sales globally.

Its business centers on public safety testing and animal disease detection. Guangna Dakang combines diagnostic reagents, analytical instruments and data platforms to provide integrated solutions intended to support public safety and protect human and animal health. Its product range includes portable handheld drug-testing analyzers, benchtop analyzers for biological samples, colloidal gold drug-testing reagents and fluorescent drug-testing reagents. Through these instruments and test products, the company aims to make rapid detection more accessible across its areas of focus. Guangna Dakang presents its work as applying nanotechnology innovation to practical diagnostic products and services.