Nanoparticle sensors of the activity of the protease granzyme B detect early T-cell-mediated rejection of transplanted skin grafts in mice via the release of a proteolytically cleaved fluorescence reporter that filters into urine.
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Chong, A.S. Urinary nanosensors of early transplant rejection. Nat Biomed Eng 3, 251–252 (2019). https://doi.org/10.1038/s41551-019-0389-0
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DOI: https://doi.org/10.1038/s41551-019-0389-0
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