Yunhu Gao is a research assistant in the Department of Engineering at the University of Cambridge, working with Dr André Cabrera Serrenho, on resource efficiency in plastics and petrochemical systems. He pursued his PhD degree in the Department of Chemical Engineering and Biotechnology at the University of Cambridge from 2017 to 2021. His PhD focused on the design of flow reactors for the continuous production of nanoparticles, with an emphasis on the effect of mixing. He worked as the technical director in Jiangsu Huayi Technology Co., Ltd., being responsible for designing and building production lines for Oxygen-18 isotope separation. Yunhu received his Master’s degree and Bachelor’s degree from Tsinghua University in 2014 and 2011, respectively.