upconversion nanoparticles
Delivery StrategyUpconversion nanoparticles (UCNPs) are a light-conversion delivery harness that couples near-infrared (NIR) illumination to modules that normally require shorter-wavelength activation. In the cited studies, UCNPs were paired with a UV-responsive triangular DNA nano sucker and with Opto-CRAC to enable NIR-triggered nucleic acid amplification and NIR control of Ca2+-dependent signaling.