Abstract Intensifying competition between the U.S. and China is recalibrating the balance between 12 collaboration and competition in academic science among the two largest economies and global 13 science producers. We explore the trajectory of nanotechnology research collaboration between 14 the U.S. and China, and probe the impacts of U.S.-China decoupling on research impact. We 15 trace changes in the frequency of U.S.-China research collaboration between 2012-2024 and 16 investigate whether the impact of research sponsored by American and Chinese funding agencies 17 has changed in parallel with evolving patterns of research collaboration in this period. We find a 18 decline in U.S.-China co-authorship, which accelerates in the late 2010s. Additionally, we 19 observe a decrease in the impact of publications funded by U.S. funding agencies – a trend not 20 mirrored in outputs supported by Chinese funding bodies. This study contributes to the growing 21 body of literature exploring the influence of geopolitical dynamics on scientific activity.
Marini et al. (Mon,) studied this question.
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