Recently, the research team led by Professor Zhao Suqing of School of Biomedical and Pharmaceutical Sciences, published the article “A bifunctional immunosensor based on osmium nano-hydrangeas as a catalytic chromogenic and tinctorial signal output for folic acid detection” (DOI:http://doi.org/10.1039/D1AN01432C). It was recommended by the official account of the Royal Society of Chemistry (tweet connection: https://mp.weixin.qq.com/s/hEUeEH_grxc9ec5gsgmo8w). The corresponding authors are Professor Zhao Xuqing, Professor CAI Yanfei and Dr. Cui Xiping, and the first author is Pan Junkang, a 2019 master student of School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology.