The article focuses on a device that can perform 32 reactions on a chip at the same time, which was developed Harmuth C. Kolb, Hsian-Rong Tseng, and their colleagues. The researchers miniaturized a technique know as in situ clik chemistry, which identifies high-affinity inhibitors for enzymes. As a result, the chip has enabled interesting proteins to be screened at last, and may open up many areas for biological and medicinal study.