Nan Graduated  from  Sun Yat-sen University and currently working in the valuable instruments laboratory of the School of Chinese Materia Medica at Guangdong University   Pharmacy, Guangdong Province. He has long been engaged in the research of colloidal drugs. He is a master's supervisor, a rural science and technology special envoy in Guangdong Province, and a consultant for dietary therapy and health maintenance for the Guangdong Provincial Development of Traditional Chinese Medicine Business Foundation. He is a member of the special committee of the Chinese Traditional Chinese Medicine Society of Guangdong Province. He is also a member of the special committee of the Traditional Chinese Medicine Foundation.