Cheng, X., Li, Z., Zhu, J., Wang, J., Huang, R., Yu, L. W., Lin, S., Forman, S., Gromilina, E., Puri, S., Patel, P., Bahramian, M., Tan, J., Hojaiji, H., Jelinek, D., Voisin, L., Yu, K. B., Zhang, A., Ho, C., Lei, L., Coller, H. A., Hsiao, E. Y., Reyes, B. L., Matsumoto, J. H., Lu, D. C., Liu, C., Milla, C., Davis, R. W., Emaminejad, S. (2025). Tandem metabolic reaction–based sensors unlock in vivo metabolomics. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2425526122