NewslettersMesenchymal Cell News A Cell Penetrating Peptide-Modified Magnetic/Fluorescent Probe for In Vivo Tracking of Mesenchymal Stem Cells By Bob - July 26, 2022 0 Paramagnetic element-doped upconversion nanoparticles’ potential in cell labeling and in vivo tracking applications was comprehensively explored. [Journal of Biomedical Materials Research Part A] Abstract