Stem cell is at the frontier of life sciences. Based on the paper and patent records in Science Citation Index Expended (SCIE) and Derwent Innovation Index^SM (DII), this paper intends to reveal the international development trends of stem cell field during 2011-2015, as a contrast to the situation of 2006-2010. Using bibliometrics methods, the paper assesses the research scale, research impact, market distribution and competitive situation of stem cell field. Besides, the paper analyzes China’s development trends, with the aim of providing reference to stem cell research policy making of Chinese government.

To explore the development of botulinum toxin, we analyzed research literature and patent application collected in the database of SCI, TI, Innogarphy of TDA, SPSS, Excel and other softwares. We hope that the visualization analysis can provide data support for policy makers and researchers in the field of botulinum toxin. The results show that main research institutions are distributed in Europe and the United States, and the main force in China is Academy of Military Medical Science. There is still a big gap between China and the developed countries. The main research contents of botulinum toxin are detection, prevention and application, vaccine type and mechanism. We should focus on basic theory and patent technology of botulinum toxin, and improve the ability of preventing terrorist attacks.