Developed by a sci-tech company in northwest China's Shaanxi Province, the chip has recently been put into commercial production upon approval of the State Pharmaceuticals Administration. It marks production of China's first gene chip that can be used in the country's clinic work.

Gene chip, or DNA chip, is a product of high technology developed in the middle of the 90s. Made of treated glass of the ordinary type, it is no larger than an adult's nail. Every DNA chip comprises of several hundred or a few million subdivisions and a large number of gene probes with a special function in each division. When it has a drop of treated blood sample on, and scanned by laser, it can tell whether a sick person has contracted infectious disease or some heredity disease. Gene chip diagnosis, fast in speed, high in efficiency, is of great accuracy.